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As a Senior Linux Systems & DevOps Engineer, you'll take a hands-on responsibility for running, troubleshooting and improving the infrastructure our platform depends on. Senior DevOps and Systems Engineer. Following an initial application review, selected candidates will have a first conversation wi

We’re committed to creating a workplace where everyone feels valued, respected and empowered to be their authentic selves - regardless of race, ethnicity, gender identity, age, sexual orientation, disability, religion, or background. Our team use a mixture of MacBook Pros and high-end Linux laptop

Aim high, go beyond! At Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on… Working in our Chief Operating Office (COO) Our COO Teams are the engine that powers Open Cosmos’ operations. This division brings together mission management, supply chain, and quality & product assurance to make sure every mission is delivered smoothly, reliably, and to the highest standards. They turn plans into action, keeping us efficient and mission-ready at all times. We're looking for a 2nd Line IT Support Engineer to strengthen our IT operations and ensure our systems, offices, and people are supported with reliable, secure, high-performing technology. What will you be doing? This is a hands-on technical role — combining escalated user support, deeper infrastructure work, and continuous improvement. You’ll be the go-to point for complex issues across devices, networks, identity, and SaaS services, helping keep Open Cosmos running smoothly as we grow. You will: Own and resolve escalated issues across Windows, Linux, macOS, iOS/Android, networks, identity, and collaboration tools. Troubleshoot, perform root-cause analysis, and implement corrective and preventative actions. Meet SLAs and communicate clearly with users and stakeholders. Administer Google Workspace, SSO/IAM, MFA and support our migration to M365 and Entra ID. Manage endpoints using Intune/Jamf/MDM, including software packaging and secure baselines. Support LAN/WLAN/VPN/DNS/DHCP/firewall changes and monitoring; liaise with providers as needed. Manage the full device lifecycle — builds, replacements, RMAs and onboarding/offboarding. Contribute to deployments and upgrades (office builds, Wi-Fi refresh, EDR rollouts, migrations). Improve automation, self-service, reporting and monitoring through scripting and tooling. Champion security best practice across patching, hardening, device compliance, and access controls. What You’ll bring Strong troubleshooting skills across Windows, Linux, macOS, mobile OS and SaaS platforms. Demonstrable ability in administering M365, Entra ID, IAM, MFA/SSO, device compliance, EDR/AV and patching. Comfortable with ITSM/ticketing, change control and documentation. Familiarity with scripting/automation (PowerShell/Bash) is a plus. Clear, confident communication skills — translating technical concepts for non-technical users. • Subject-matter expertise in at least one of the following: Microsoft tenant migrations Microsoft Intune Microsoft Endpoint Configuration Manager SharePoint Administration JIRA Administration API integrations AI adoption For this role you can be based in any of our locations. To apply, you must have the legal right to work in your chosen location. When applying, please submit your CV in English Why Open Cosmos? Work at the cutting edge of space technology with customers around the globe. A mission-driven company making space accessible to help solve real-world challenges. A diverse, ambitious, and supportive team.

Runpod is the AI Developer Cloud. More than one million developers, from indie researchers to teams running frontier models in production, use Runpod to experiment, train, fine-tune, deploy, and scale AI on one platform. The platform has processed more than 20 billion inference requests. We closed a $100M Series A in June 2026. We're at an inflection point for AI infrastructure, and we're building the platform the next generation of developers will depend on. Learn more in our CEO's funding announcement: . We're a small, remote-first team. We take ownership seriously, move fast, and ship work that more than a million developers rely on every day. We're looking for people who care deeply, build with urgency, and want to matter at scale. As a Technical Support Analyst (L2), you’ll play a critical role in supporting our customers by providing advanced technical assistance to resolve complex issues. This position is ideal for someone who thrives in a dynamic environment and is passionate about delivering exceptional customer service. Please note : this position requires availability on weekends as per business requirements and you must be in EMEA in one of the following places Ireland, United Kingdom, Spain or Poland Provide clear, timely communication to customers, keeping them informed about the status of their issues and ensuring a high level of customer satisfaction. Deliver support through multiple channels, including email, phone, chat, and video calls (e.g., Google Meet, Zoom). Troubleshoot and resolve critical or complex technical issues escalated by customers, including those related to configuration, performance, functionality, compatibility, or code errors in Runpod’s products or services. Utilize various tools and methods, such as code analysis, scripting for testing, log analysis and remote access, to identify root causes and deliver solutions or workarounds. Communicate effectively with customers and internal teams, including engineering, sales, supply and product management teams, to ensure customer satisfaction and integrate valuable feedback. Assist the support team in troubleshooting and resolving escalated technical tickets, collaborate with the engineering team to provide workarounds or bug fixes, and work with the infrastructure team to address GPU server-related issues. Contribute to product development and testing efforts by relaying feedback from customers and the support team to the engineering team, helping to shape product improvements. Create and maintain technical documentation, such as knowledge base articles, FAQs, guides, and manuals, while also developing and delivering training sessions, webinars, and demos for customers, partners, and internal teams. Use diagnostic tools and techniques to find the root cause of issues and implement fixes, updates, or changes as needed. Analyze software code and logs to spot bugs or performance issues, developing solutions or workarounds where necessary. Conduct thorough analysis of system performance, errors, and configurations to ensure our systems remain stable and reliable. Proficiency with Datadog, Grafana, SQL databases, and ease with CRM tools are considered strong assets for this role. Assist customers with software configuration tasks, such as installation, setup, and customization, to help them get the most out of our products. At least 5 years professional experience in technical customer support. Bachelor's degree in a relevant field (e.g., Computer Science, Computer Engineering, Software Engineering, Information Technology, or a related field) or equivalent professional experience. Familiarity with applied AI use cases such as inference, fine-tuning, LLM-based applications, or agentic systems. Strong problem-solving skills and the ability to analyze and resolve technical issues. Should have at least 2 years of experience in software engineering/development or 2 years of experience as a networking admin Knowledge of various operating systems (Linux/Ubuntu), containerization (Docker), SQL databases (MySQL, PostgreSQL), and an understanding of data center components such as server hardware and network operations, as well as familiarity with common network protocols like TCP/IP, SSH, and DNS. Ability to write and execute scripts, queries, or commands, and the ability to read and understand code, logs, errors, or traces in Python. Excellent communication skills, both verbal and written. Advanced knowledge of operating systems, including: Proficiency with SSH and the use of terminal commands Experience with Linux (server versions specifically) Strong asset: proficiency in Docker and deployment on the docker Strong technical skills, including proficiency in Django, Flask, PyTorch, JavaScript (React, Node.js), and Go, with hands-on experience in full-stack development. Proficiency in deploying and managing AI/ML models as services or APIs, along with a deep understanding of machine learning models, including their training, inference, and deployment processes on Runpod platforms. Experience in AI fine-tuning or AI inference What You’ll Receive: The competitive base pay for this position ranges from 70,000 to 82,500 euro. This salary range may be inclusive of several career levels at Runpod and will be narrowed during the interview process based on a number of factors, including the candidate’s experience, qualifications, and location Meaningful equity in a fast-growing company- everyone on the team receives stock options — your impact drives our growth, and you share in the upside. Flexible PTO- take the time you need to recharge Most roles are remote work first with an inclusive, collaborative teams utilizing slack as the main form of internal communication Join a passionate team on the cutting edge of AI infrastructure — where culture, learning, and ownership are at the heart of how we scale. $1,200 USD Home Office & Equipment Stipend- We set you up for success from day one with gear and support to create your ideal workspace Runpod is committed to maintaining a workplace free from discrimination and upholding the principles of equality and respect for all individuals. We believe that diversity in all its forms enhances our team. As an equal opportunity employer, Runpod is committed to creating an inclusive workforce at every level. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, marital status, protected veteran status, disability status, or any other characteristic protected by law. We welcome every qualified candidate; however, we are currently unable to sponsor employment visas

TL;DR We're seeking a Senior Technical Support Engineer with deep technical expertise and a passion for customer engagement to solve complex customer challenges, mentor a growing team, and help shape the future of our world-class artifact management platform. Cloudsmith is building the operating system for the modern software supply chain. We run a global, fully managed, multi-tenant SaaS platform that helps organizations, from startups to the Fortune 500, secure, govern, and distribute software artifacts at scale. Worldwide, our customers use Cloudsmith as a critical infrastructure control plane for CI/CD, developer workflows, security controls, compliance, and software distribution, supporting 30+ formats and ecosystems across languages, containers, and operating systems. We recently raised our Series C to accelerate Cloudsmith 2.0: deeper artifact intelligence, stronger policy and provenance, faster package-aware delivery, and infrastructure built for engineering teams, as well as the modern AI-driven software factory. Backed by top-tier investors and on a trajectory toward IPO, we're building mission-critical infrastructure that powers software delivery for organizations worldwide. By developers, for developers: we care about craft, architecture, and enterprise scale. We are building a team that is responsible for the developer experience. On a daily basis, we work with our customers and the developer community to ensure they are building software that is efficient and secure across the whole supply chain. Our team helps customers troubleshoot and investigate issues, diagnosing and resolving core product-related issues. We expand and enhance their experience through the development and maintenance of 3rd party integrations that extend our API, CLI, and Webhook capabilities, while curating a public knowledge base to support customers to independently resolve common issues. Technical Support: Provide top-notch technical support to our customers, assisting them with any product-related issues, inquiries, or challenges they may encounter. Problem Solving: Diagnose and troubleshoot technical issues, replicating them in local environments and collaborating closely with customers to identify root cause and provide effective solutions. Documentation: Create and maintain detailed documentation, including knowledge base articles and FAQs, to assist customers in resolving common issues independently. Software Expertise: Leverage your expertise in application programming to build and maintain third party integrations like Terraform, GitHub Actions, CircleCI etc. Customer Advocacy: Act as a customer advocate within the company, sharing customer feedback, feature requests, and insights with the product development team to improve our offerings. Bachelor's degree in Computer Science, Information Technology, or a related field. 8+ years in Technical Product Support, a similar role, or a background in software development. Strong application programming experience, proficient in Java, Python, or JavaScript languages. Knowledge of software packaging and distribution concepts and tools. Excellent problem-solving and troubleshooting skills. An enthusiastic and effective communicator: you should be able to appeal to and communicate with both technical and non-technical listeners alike. Ability to work independently and as part of a team. Willingness to participate in an on-call rota supporting customers across multiple time zones. Professional experience in building, testing, deploying, debugging, and maintaining complex systems in production environments; or equivalent experience in open-source ecosystems and projects. Familiarity with UNIX-like systems (Linux/WSL/MacOS). Familiarity with Artifact and Package management, or the software supply chain. Familiarity with Cloud-based infrastructure, data structures & algorithms, storage systems, source control, and continuous integration. Amazon Web Services (AWS) / AWS Certifications. Contributions to open-source projects. ReST, GraphQL, gRPC API Design. Docker, OCI, ORAS, Kubernetes (k3s, k8s). Sigstore, Cosign, Keyless Signatures, Signature Attestation. Grafeas, Kritis, Metadata Provenance. A bias for action and a passion for what we do: A positive attitude and bias for action is everything. You proactively seek knowledge and are never satisfied with the status quo. Empathy + customer-centricity: You genuinely care about customers and strive to understand their needs, frustrations, and goals. You see customer success as your own success. Relentless curiosity + continuous learning: You are always eager to learn, improve, and challenge assumptions. Bias for Action + Ownership: You take initiative, move fast, and own problems end-to-end. You're not afraid to roll up your sleeves, even when challenges are outside your comfort zone. Collaboration + Candor: You value open, honest, and respectful communication. You give and receive feedback constructively and believe that the best ideas win, regardless of hierarchy. Note: You must be based in the UK and have the right to work independently without requiring sponsorship. A remote-first position based in the UK A competitive compensation package, including equity. With comprehensive health, dental, and vision insurance. Plus, generous annual leave and flexible working policies to suit your lifestyle. Including a professional development budget for conferences and training. In a dynamic, innovative, trust-centric, and supportive work environment. With the opportunity to shape a fast-growing Series C scaleup (and beyond). Regardless of your location, we deeply care about the health and wellness of our staff and their families; a sustainable pace is important to us. In addition to generous annual leave (PTO), we offer health and wellbeing benefits along with flexible family-friendly working policies. You will have an enormous opportunity to learn new skills alongside your colleagues, and your continued professional development is essential to us because it's important to you. We will support you with budgets for equipment, training, books, conferences, travel, and certifications. The more powerful you become, the better for all of us. Cloudsmith is headquartered in Belfast, Northern Ireland, and we use our H.Q. regularly for activities like team planning, meets and greets, and sometimes other group activities (like games!). We also hold all-hands offsites in Belfast (or otherwise) thrice yearly, with guest speakers and team activities. Most Cloudsmithers work remotely, close and far, so we rely on our online collaboration tools; Slack is how we work. Cloudsmith is an equal-opportunity employer proud to nurture a diverse workplace that welcomes applications from individuals of all races, genders, and ethnic groups. We do not discriminate on age, religion, sexual orientation, citizenship status, military service, or health conditions. We will not tolerate discrimination of any kind within our workforce. We're looking for someone who can balance deep technical expertise with profound customer empathy, has the experience to help build a world-class technical support experience, and is fearless in rolling up their sleeves when needed. We're critical infrastructure by developers, for developers, and we're building the world's software supply chain platform and ecosystem. We want to hear from you if you're excited to work on mission-critical infrastructure with a lasting impact on the software industry from today until IPO and beyond.

Remote (UK-based) | Full-Time Reactive Markets is the 2026 OTC Trading Platform of the Year (_). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. We build trading systems that operate at the edge of what's technically possible — where nanoseconds matter and a dropped message costs real money. Our engineering team is small, senior, and deeply invested in the craft of building cutting edge, reliable, high-performance systems. We're looking for a C++ Software Engineer who wants to build low-latency trading infrastructure on Linux. You'll work on the core components of our Switchboard trading platform — pricing engines, connectivity gateways, market-data systems, and the messaging layer that ties them together. This is not a role where you write code and throw it over a wall. You build it, you test it, you deploy it, you support it in production, and you improve it. Our engineers own the full lifecycle — from design through to operational excellence. When something breaks at 4pm on a Friday, you're part of the team that investigates and fixes it. Occasional hours outside the normal working day are required for production releases, scheduled maintenance windows, and Level 3 support during critical incidents. We keep this to a minimum and recognise the commitment — but owning a production trading platform means being there when it matters. Modern C++20 and Go on Linux — a modern software stack based on open source Cloud-native infrastructure on AWS with colocation in key data centres Microsecond-level latency optimisation and high-throughput messaging Market-data and reference-data pipelines across multiple asset classes FIX protocol integrations with global banks and liquidity providers Observability and monitoring — dashboards, alerting, and metrics that make system behaviour visible Production systems that handle real money — reliability is not optional Technical: Strong C++ with Linux systems programming (3+ years) Comfortable working close to the metal — you understand what's underneath your code Experience with performance-sensitive systems (profiling, optimisation, deterministic behaviour) Familiarity with networking fundamentals (TCP/UDP, socket programming) Go experience is a strong bonus — we use Go extensively for microservices and command-line tooling, and you'll be expected to work with it internally. If you don't know it yet, strong C++ engineers pick it up quickly Python for scripting, automation, testing, and data analysis — used across the platform for tooling and operational workflows Git and shell scripting Experience in financial services or trading technology is a plus but not essential How you work: You ship. You're delivery-focused — you iterate, you improve, you get things into production You own it. When you build something, you take responsibility for its behaviour in production. You respond to incidents (15-minute acknowledgement SLA during working hours), investigate issues, and close the loop You write things down. Documentation is not an afterthought — it's how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You communicate. We're a distributed team across multiple time zones. Clear, proactive communication — especially when things go wrong — is essential You care about quality. You write clean, testable code. You review your peers' work thoughtfully. You push for continuous improvement without gold-plating You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation. You don't need to be an expert, but you should be curious and willing to learn Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility. We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp Growth — career progression to senior roles, performance specialisation, or technical leadership. We invest in people who invest in us We believe in transparency, honest feedback, and writing things down. We celebrate delivery, not activity. We frame AI as empowering people — removing toil, amplifying capability, enabling higher-value work. We aim to build systems that don't depend on the heroics of individuals to maintain and support — systems and processes that are resilient, documented, and sustainable. We keep our process focused and respectful of your time. Our process follows three stages. Stage 1: Initial Conversation with Talent Acquisition Format: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring manager Format: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering team Format: Video call, interactive session, ~60 minutes What to expect in each stage will be explained by Talent Acquisition if you're invited to interview. Throughout the process, we aim to keep momentum with no unnecessary delays between stages, and feedback typically comes within a few business days. *Please note that depending on availability, Stage 2 and 3 may swap around. Please apply directly via this job posting — all applications, including those submitted via LinkedIn, are managed through our applicant tracking system, so you'll always land in the same place regardless of where you found this role. Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role. Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate. Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our . #Hiring #SoftwareEngineering #CPlusPlus #FinTech #TradingTechnology #RemoteWork #LowLatency

Our vision is to be widely recognised and acknowledged within the global biopharmaceutical community as an industry-leading discoverer and developer of innovative, first-in-class, drug molecules. By fully utilising the expertise and knowledge of our team to address the significant hurdles inherent in drug discovery, we are driven to make fundamental contributions to the development and advancement of new medicines that address unmet medical needs across a range of therapeutic indications. If you are passionate about science, interested in working in a friendly and stimulating environment, and would welcome the opportunity to bring your best to our company, we are always interested in hearing from you. As a member of the bioinformatics group, the post holder will support all aspects of data science and integration within Almac Discovery. Working across the biology, chemistry, and protein therapeutics teams, the role will involve managing the storage, processing and analysis of data that is produced by the scientific teams. This is an exciting opportunity to play a central role in the further development of Almac Discovery as an innovative and successful biotechnology company. Preference will be given to a motivated individual with a high level of scientific commitment and a strong work ethic, who thrives in a highly collaborative environment. Travel Requirement: As part of this dynamic role, you will be expected to travel across all Almac Discovery locations, including Belfast, Edinburgh, and Manchester. Flexibility and willingness to travel are essential to support the needs of the business. The post holder must be able to undertake travel in line with business requirements. • BSc or MSc in Data Science, Bioinformatics or Computer Science., • Experience of developing databases and executing SQL queries., • Experience of using Linux-based operating systems and command line applications., • Experience of creating data visualisations., • Ability to develop using one of R or Python., • Experience developing software applications., • (The following criterion may be applied if a large pool of applicants exists), • PhD in Data Science, Bioinformatics or Computer Science., • Prior work experience in a relevant industrial, academic or life science setting., • Experience using and/or building ELN or LIMS systems., • Prior experience in building data analytics software., • Experience of writing / developing SOPs. #J-18808-Ljbffr

Our client is a fast-growing cloud security company whose platform uses runtime data to identify and prioritise the risks that matter most, giving customers efficient, end-to-end protection across their cloud infrastructure, from misconfigurations to malware. Our client is hiring a Security Engineer to join their Managed Detection and Response (MDR) team as the founding UK member of their Security organisation. You'll focus on proactive reviews and advanced customer guidance, independently owning UK-hours coverage, and work closely with analysts, researchers, and engineers, with a clear path to technical or team leadership as the UK presence grows. • Help fine-tune detection and response mechanisms and support proactive reviews of customer environments to identify risks and recommend improvements., • Lead in-depth investigations into supply chain, API, malware, and runtime attacks, documenting outcomes and building playbooks to improve future detection., • Collaborate with Security Analysts, Research, and Backend teams to enhance detection quality., • Own complex or critical incidents escalated from Tier 1/2, including live, high-pressure customer engagements., • Take part in recurring customer meetings, translating security findings into clear recommendations, and stay composed when conversations get tense., • Keep up to date with emerging threats and attack techniques, and contribute to training AI-driven detection models., • Willing to join a shared on-call rotation, with occasional availability for nights, weekends, or holidays., • Solid, hands-on cybersecurity experience, ideally from a leading cloud or cloud security company., • Strong detection engineering, incident response, and threat analysis skills, able to explain supply chain, API, malware, and runtime attack techniques in depth., • Hands-on with AWS, GCP, or Azure, plus Docker/Kubernetes and Linux; comfortable with networking fundamentals and Python/Bash scripting., • Strong communicator, confident engaging customers directly and staying composed under pressure., • Self-directed, curious, and comfortable in a fast-paced, high-ownership startup environment., • Belfast office base, hybrid working (3 days/week in office)., • 35 days annual leave (inclusive of statutory holidays)., • 8% matched pension., • Equity/share options. #J-18808-Ljbffr

About us @Symphony Reliable. Interlinked. Sophisticated. Symphony stands as an AI-driven leader in communication and technology, powered by a synergy of interlinked platforms: messaging, voice, directory, and data analytics. Our advanced encryption technologies empower more than 1,400 global institutions to leverage AI effectively, uphold rigorous data security standards, manage intricate regulatory requirements, and refine their professional interactions. Role Description Symphony is seeking an enthusiastic Site Reliability Engineering (SRE) Placement Student to join our Infrastructure team. At Symphony, real-time collaboration and secure communication demand ultra-high availability, ultra-low latency, and robust resilience. In this role, you will work alongside senior engineers to apply software engineering practices to infrastructure and operations problems. You will gain hands-on experience with cloud-native architectures, container orchestration, automated deployment pipelines, and reliability monitoring, helping ensure our enterprise platform stays scalable, performant, and resilient. Key Responsibilities • Infrastructure Automation: Assist in writing and maintaining automation scripts and Infrastructure as Code (IaC) to streamline deployment, scaling, and infrastructure management., • Monitoring & Observability: Help build, refine, and maintain dashboards and alerts (using tools like Prometheus, Grafana, or Datadog) to track Service Level Indicators (SLIs) and Service Level Objectives (SLOs)., • Incident Response & Support: Shadow SRE mentors during incident triage, assist with root cause analysis (RCA), and contribute to blameless post-mortem documentation., • Performance & Reliability Tuning: Participate in analyzing system performance bottlenecks, stress testing services, and identifying single points of failure within cloud infrastructure., • CI/CD Pipeline Maintenance: Support the maintenance and improvement of continuous integration and continuous delivery (CI/CD) pipelines to facilitate safe, reliable software releases. Qualifications • Education: Currently pursuing a Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Software Engineering, or a related technical discipline., • Software Development Skills: Solid foundational programming skills in at least one modern language (e.g., Python, Go, Java, or Bash scripting)., • Systems & Networking Fundamentals: Good understanding of Linux operating systems basics, command-line interfaces, network protocols (TCP/IP, HTTP/HTTPS, DNS), and RESTful APIs., • Problem-Solving Ability: Strong analytical mindset with a curiosity for understanding how complex distributed systems work and how they fail., • Collaboration & Communication: Clear written and verbal communication skills with an eager, team-oriented attitude toward learning and sharing knowledge. Compensation: £14/hour Duration : 9 months Benefits: • Hands-on experience in real-world SRE projects., • Mentorship and guidance from experienced developers., • Opportunity to expand your technical skill set and learn new technologies., • Networking opportunities within the industry., • Develop an understanding of Symphony’s products/services and its relevance in the marketplace. Join us for an exciting Placement that will kickstart your software development career. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. #J-18808-Ljbffr

Join the world’s largest kdb+ Consultancy where you’ll work with some of the biggest names in Capital Markets and continue to elevate your expertise solving complex challenges in an environment built on collaboration, knowledge sharing and continuous learning. If you’re a kdb+ developer ready to deepen your skills, contribute to impactful projects and grow in a supportive, high-performance environment this is your opportunity! • Collaborating with business users to define new application requirements., • Developing, testing and maintaining clean, performant code for client applications., • Supporting project delivery alongside Project Managers and Senior Engineers., • Working as part of a close-knit team to deliver solutions on time and on budget., • Analysing large-scale time-series data and generating actionable reports., • Mentoring junior developers and contributing to a culture of continuous learning., • 2+ years of hands-on kdb+ development experience., • Solid understanding of q language and time-series data structures., • Experience working in Unix/Linux environments., • Strong logical thinking and problem-solving skills., • Familiarity with software development methodologies and the SDLC., • Comfortable working independently and collaboratively within a team., • Excellent client-facing communication skills., • Experience in Capital Markets or Investment Banking is advantageous., • Experience with AI tooling (Claude, Co-Pilot)., • Knowledge of Python, cloud platforms (AWS, GCP, Azure), or other time-series databases., • Exposure to project leadership or people management. Contribution to internal tools, documentation, community initiatives. • Hybrid & flexible working - balance your time between home and our global offices., • Global opportunities - work with clients in London, New York, Hong Kong, Singapore, Toronto and beyond., • Continuous learning - day one access to paid training, certifications and leadership development., • Clear progression pathways - biannual promotion cycles and monthly 1:1s to excel your career growth and development., • Healthcare & wellbeing - provider dependent on region., • Flexible, increasing holiday allowance - option to work bank holidays providing greater flexibility in holiday usage., • Generous referral bonuses, exciting social events and so much more - we work hard and celebrate harder. Data Intellect is a specialist data and technology consultancy with deep expertise in capital markets. We build high-performance systems that power trading, risk and analytics for some of the world’s most demanding clients. Our expertise spans kdb+, AI, data engineering, regulatory technology and enterprise platforms. We’re growing, fast! We’re proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Accommodations are available throughout the assessment and selection process. #J-18808-Ljbffr

Our mission is to accelerate data and AI-driven innovation with high performance analytics solutions, enabling our customers to transform into AI-first enterprises. KX is trusted by the world's top investment banks & hedge funds, aerospace and defence, life and health sciences, semiconductor, telecommunications, and advanced manufacturing companies. Time series and vector data analytics and management are at the heart of our products, independently benchmarked as the fastest on the market. They help our customers process data at unmatched speed and scale and empower LOB leaders, developers, data scientists, and data engineers to build high-performance data-driven applications and turbocharge their favourite analytics tools in the cloud, on premise, or at the edge. KX technology enables the discovery of richer, actionable insights for faster, better-informed decision making which drives competitive advantage and transformative growth for our customers. KX operates across North America, Europe, and Asia Pacific. Role Overview: We are hiring KDB+ Developers at various experience levels, from mid-level professionals to senior experts. In this role, you will work on developing, optimizing, and maintaining KDB+/q-based applications, supporting high-frequency data processing, and collaborating with customers and internal teams to deliver efficient data solutions. Experience with KX products, including KX Insights, KX Enterprise, or KDB+/q, is highly beneficial and will be prioritized in candidate selection. Key Responsibilities: • Design, develop, and maintain KDB+/q-based applications for real-time and historical data analysis., • Optimize query performance, memory management, and data structures for large-scale time-series datasets., • Work with internal and external stakeholders to define requirements and implement solutions., • Troubleshoot and debug performance bottlenecks in KDB+ and KX products., • Collaborate with DevOps and infrastructure teams to ensure scalable and reliable deployments., • Write clean, efficient, and well-documented q code, following best practices., • Some on-call work may be required to support critical incidents, system maintenance, or client needs outside regular business hours. Required Skills & Experience: We encourage applications from candidates with varying levels of experience, with responsibilities and expectations adjusted accordingly. For Mid-Level Candidates: • 2+ years of experience in KDB+/q development., • Strong understanding of time-series data, analytics, and query optimization., • Experience working with large-scale data processing and real-time applications., • Familiarity with Linux/Unix environments and scripting (Shell, Python, etc.)., • Basic understanding of networking, APIs, and cloud technologies (AWS, Azure, GCP). For Senior Candidates: • 5+ years of experience developing and optimizing KDB+/q-based applications., • Hands-on experience with KX products (KX Insights, KX Enterprise, or KDB+ on cloud)., • Expertise in query optimization, memory management, and scaling KDB+ solutions., • Strong knowledge of market data, trading systems, or real-time analytics., • Experience with data pipelines, cloud-based KDB+ deployments, and distributed computing., • Ability to lead projects, optimize system architecture, and mentor junior developers. Preferred Qualifications (for all levels): • Experience with high-frequency trading, quantitative finance, or IoT applications., • Knowledge of DevOps practices, CI/CD pipelines, and containerization (Docker, Kubernetes)., • Familiarity with monitoring tools (Splunk, Grafana, Prometheus, etc.)., • Background in C++, Python, or Java for integration with KDB+. Location & Workplace Type: This position takes on a Hybrid working model based in Belfast, NI. Why Choose KX? Data Driven: We lead with instinct and follow fact. Naturally Curious: We lean in, listen and learn fast. All In: We take ownership, take on challenges and give it our all. • Individually tailored training and skills development, • Private healthcare package and Employee Assistance Programme, • Enhanced maternity and paternity package, • Wellness Days and Volunteer Days, • Job Identification 11247, • Job Category KX, • Job Schedule Full time, • Locations The Weaving Works, Belfast, BT2 8HD, GB #J-18808-Ljbffr

Reliable. Interlinked. Sophisticated. Symphony stands as an AI‑driven leader in communication and technology, powered by a synergy of interlinked platforms: messaging, voice, directory, and data analytics. Reliable. Interlinked. Sophisticated. Symphony stands as an AI‑driven leader in communication and technology, powered by a synergy of interlinked platforms: messaging, voice, directory, and data analytics. Our advanced encryption technologies empower more than 1,400 global institutions to leverage AI effectively, uphold rigorous data security standards, manage intricate regulatory requirements, and refine their professional interactions. Symphony is looking for a driven Security Placement Student to join our team. In this role, you will gain hands‑on experience in protecting critical infrastructure, learning how modern secure communications operate, and supporting our security operations, risk management, and compliance initiatives. You will collaborate with cross‑functional teams to help monitor, assess, and strengthen our security posture while developing core skills in modern information security practices. • Security Monitoring & Incident Support: Assist the Security Operations Center (SOC) team in monitoring alerts, analyzing logs, and triaging potential security events., • Vulnerability & Asset Assessment: Support routine vulnerability scans, assist in tracking remediation progress, and help maintain accurate technical asset inventories., • Identity & Access Management (IAM): Help audit user permissions, access controls, and multi‑factor authentication systems across internal tools and cloud environments., • Security Awareness: Help draft internal security communications, phishing simulations, and educational materials for employees., • Compliance & Risk Support: Assist with gathering evidence and documentation for third‑party security audits, ISO/SOC 2 certifications, and internal risk assessments., • Automation & Scripting: (Optional) Write basic scripts (Python, Bash, or PowerShell) to automate repetitive security tasks and logging processes., • Education: Currently pursuing a Bachelor’s or Master’s degree in Computer Science, Cybersecurity, Information Technology, Computer Engineering, or a related technical field., • Core Technical Knowledge: Basic understanding of network fundamentals (TCP/IP, DNS, VPNs), operating systems (Linux, Windows), and core cybersecurity principles (encryption, authentication, access control)., • Analytical Skills: Strong problem‑solving ability with high attention to detail when analyzing system logs or technical data., • Communication: Clear written and verbal communication skills, comfortable interacting with technical and non‑technical team members., • Work Ethic & Ethics: High standard of personal integrity, discretion when handling sensitive data, and eagerness to learn in a fast‑paced environment., • Hands‑on experience in real‑world security projects., • Mentorship and guidance from experienced developers., • Opportunity to expand your technical skill set and learn new technologies., • Networking opportunities within the industry., • Develop an understanding of Symphony's products/services and its relevance in the marketplace. Join us for an exciting placement that will kickstart your cybersecurity career! We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. #J-18808-Ljbffr

VANRATH Belfast, Northern Ireland, United Kingdom VANRATH is delighted to be working with a global leading professional services company who are seeking a Security Vulnerability and Penetration Testing (VAPT) Engineer to join their expanding cybersecurity team. This is a fantastic opportunity for an experienced security professional to play a pivotal role in protecting their organisation's critical systems and platforms. About the Role: As a VAPT Engineer, you will take ownership of assessment activities related to the security posture of both existing and proposed systems, platforms, and processes. Your work will focus on ensuring the confidentiality, integrity, and availability of information systems, aligning with the firm's strategic goals, regulatory requirements, and business objectives. Key Responsibilities: • Perform security penetration testing of systems, platforms, and applications., • Act as a Subject Matter Expert (SME) for the VAPT function within the organisation., • Manage and maintain common VAPT tools, platforms, and processes., • Provide clear, actionable technical reports with practical and reasonable recommendations, rooted in sound risk management principles. Skills and Experience Required: • A Bachelor's degree in Computer Science or equivalent experience., • CISSP certification is required., • OSCP (Offensive Security Certified Professional) certification is essential., • GIAC GPEN or GWAPT certification is desirable., • Deep understanding of VAPT best practices, including ethical hacking and vulnerability assessments., • Proficiency in using common automated VAPT tools (e.g., Nessus, Appscan, Burp Suite)., • Experienced with Metasploit, Kali Linux, Wireshark, and other attack tools., • Expertise in mobile platform security and related vulnerabilities., • Strong knowledge of OWASP, CVE, and general security controls., • Solid understanding of risk management in the context of VAPT., • Programming and scripting skills (e.g., Python, Bash) are a plus., • Excellent written and verbal communication skills with the ability to explain complex concepts to non-technical stakeholders., • Ability to work independently and perform effectively under pressure., • Passionate about advancing VAPT practices and pursuing security excellence., • Ability to adapt quickly to the evolving threat landscape and adversary tactics., • Self-motivated with the ability to stay productive without direct supervision. *Negotiable salary depending on experience Why Join Our Client? As a global leader in professional services, our client offers a dynamic and innovative work environment, where you'll be at the forefront of tackling complex cybersecurity challenges. You'll have the opportunity to make a significant impact on the firm's security initiatives, while also advancing your own professional growth in a cutting-edge field. Mid-Senior level Full-time Information Technology and Engineering Professional Services #J-18808-Ljbffr

Senior DevOps Engineer - AVPApply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 26994893Citi is looking for a Senior DevOps Engineer to join its Technology team and play a key role in designing, building, and optimizing the application systems and platforms that power critical business operations on a global scale. In this role, you will apply deep technical expertise across CI/CD pipelines, container orchestration, cloud infrastructure, and observability to deliver resilient, high-quality software systems. Your work will directly shape how Citi's engineering teams build, ship, and monitor production services across a complex and high-impact technology environment.# Responsibilities Design and implement CI/CD pipelines using Git, Tekton, and Harness to accelerate and standardize software delivery across engineering teams. Build and manage containerized workloads on Kubernetes and OpenShift using Helm, ensuring systems are scalable, reliable, and production ready. Architect and maintain observability solutions — including log aggregation with Splunk and Elastic/Kibana, and metrics monitoring with Prometheus and Grafana — to give engineering teams real-time visibility into system health. Evaluate complex technical problems across application systems, business processes, and delivery pipelines, and develop engineering solutions that meet specific business requirements. Collaborate with development teams, business users, and technology stakeholders to define operating standards, resolve technical issues, and recommend engineering improvements. Develop and enforce security measures across the software delivery lifecycle, ensuring system design supports compliance with applicable policies and technical standards. Act as a technical authority for junior and mid-level engineers, providing guidance, code review, and hands-on support to elevate team capability.# Required Qualifications & Skills 4 to 8 years of experience in software engineering, systems development, or DevOps with demonstrated delivery in complex technical environments. Hands-on experience with CI/CD tooling, including Git-based workflows, pipeline configuration, and automated build and deployment processes. Practical knowledge of Kubernetes and OpenShift for container orchestration, including Helm chart development and cluster management. Working knowledge of Linux administration and shell scripting to support automation, system configuration, and operational tasks. Experience delivering and managing software projects end-to-end, from planning and design through to testing and production deployment. Ability to work autonomously in a fast-paced environment, managing competing priorities and adapting to changing technical or business requirements. Bachelor's degree in a relevant field or equivalent practical experience.# Beneficial Skills & Qualifications Experience with AWS cloud services, including infrastructure provisioning, managed services, and cloud-native deployment patterns. Background in observability engineering, including setting up APM tools such as AppDynamics or Datadog to monitor application performance in production. Experience defining and measuring SLOs and SLIs for production services, translating reliability targets into actionable monitoring and alerting strategies.# What We OfferAt Citi, you will work on engineering challenges that operate at genuine global scale, within a team that values technical excellence, collaborative problem-solving, and continuous improvement. This is an environment where your expertise has direct impact on production systems used by clients and businesses worldwide. A hybrid working model, with 3 days in the office and 2 days working remotely, giving you flexibility alongside meaningful in-person collaboration. Exposure to a broad and modern technology stack spanning cloud infrastructure, container platforms, and advanced observability tooling. The opportunity to operate with real autonomy, taking ownership of technical decisions and driving engineering standards across the team. Access to learning and development programmes that support ongoing growth in cloud, DevOps, and platform engineering disciplines. A competitive total compensation package, including financial well-being benefits and access to Citi's broader employee support resources.* Wellbeing and family support programmes are designed to help you maintain balance and thrive both professionally and personally.Apply now to bring your DevOps engineering expertise to a global technology team where your work shapes the reliability, security, and performance of systems that matter. #J-18808-Ljbffr

We are seeking a highly motivated and detail-oriented Associate Systems Engineer to join our Global Operations team. This role is the foundational layer of our "Follow-the-Sun" support model, acting as the primary point of contact for technical triage and initial resolution of "break-fix" tickets for our high-performance SaaS trading platform. The Associate Systems Engineer will focus on monitoring, initial troubleshooting, and executing standard operating procedures (SOPs) to maintain platform stability. This is an ideal role for someone early in their career with a strong desire to learn the full infrastructure stack including: Linux, Windows, Virtualization, and AWS within a mission-critical production environment. We are seeking a highly motivated and detail-oriented Associate Systems Engineer to join our Global Operations team. This role is the foundational layer of our "Follow-the-Sun" support model, acting as the primary point of contact for technical triage and initial resolution of "break-fix" tickets for our high-performance SaaS trading platform. The Associate Systems Engineer will focus on monitoring, initial troubleshooting, and executing standard operating procedures (SOPs) to maintain platform stability. This is an ideal role for someone early in their career with a strong desire to learn the full infrastructure stack including: Linux, Windows, Virtualization, and AWS within a mission-critical production environment. Department: Engineering Location: Belfast Compensation: £22,000 - £37,500 / year • Tier 1 & Tier 2 Support & Triage: Act as the initial responder for incoming technical tickets, providing triage and resolution for common "break-fix" issues related to Linux/Windows systems, AWS instances, and hardware., • Hybrid Identity & MFA Triage: Triage and diagnose authentication and authorization failures across a global hybrid environment: Active Directory, Linux LDAP/SSSD, MFA/2FA, and AWS IAM role assumption errors., • Virtualization Health & Performance Triage: Perform troubleshooting for global virtualization environments (e.g., Nutanix, Red Hat OpenShift Virt, VMware vSphere/ESXi or KVM) to maintain production uptime., • Monitoring & Health Checks: Perform routine monitoring of global hybrid compute and storage services to ensure optimal health and performance., • SOP Execution: Utilize and maintain technical runbooks (SOPs) for repeatable tasks such as user access requests, basic instance provisioning, and hardware status checks., • Escalation Management: Clearly document and escalation Management: Clearly document and escalation Management:, • Automation Support: Assist in maintaining existing automation scripts (Bash/Python) and Infrastructure as Code (IaC) deployments under the guidance of senior team members., • Documentation: Contribute to the internal knowledge base by documenting new troubleshooting steps and updating existing procedures., • 24/5 Rotation: Participate in an 8-hour shift rotation (including potential swing or graveyard shifts) to provide seamless global coverage., • Foundational Knowledge: An associate’s degree or relevant certification in Computer Science or a related technical field is preferred., • Virtualization Basics: General familiarity with virtualization platforms and concepts. Exposure to VMware, OpenShift Virt, Nutanix or similar technologies., • Operating System Basics: General familiarity with Linux (RHEL/CentOS) and/or Windows Server administration., • Analytical Skills: A talent for troubleshooting and solving technical problems in a logical, step-by-step manner., • Scripting Exposure: Basic exposure to or interest in learning scripting languages such as Python or Bash., • Communication: Strong verbal and written communication skills, with a focus on providing excellent customer service during technical incidents., • Collaborative Mindset: A team-oriented attitude and the ability to follow technical direction from senior leadership and the Dispatch Lead., • Adaptability: Ability to work in a rotating shift environment to support a 24/7 "follow-the-sun" operation. We offer a comprehensive benefits package designed to support your well-being, growth, and work-life balance. • Health & Financial Security:, • Medical, Dental, and Vision coverage, • Group Life (GTL) and Group Income Protection (GIP) schemes, • Pension contributions, • Time Off & Flexibility:, • Enjoy the best of both worlds: the energy and collaboration of in-person work, combined with the convenience and focus of remote days. This is a hybrid position requiring three days of in-office collaboration per week, with the flexibility to work remotely for the remaining two days. Our hybrid model is designed to balance individual flexibility with the benefits of in-person collaboration, enhanced team cohesion, spontaneous innovation, hands-on mentorship opportunities and strengthens our company culture., • 25 days of Paid Time Off (PTO) per year, with the option to roll over unused days., • One dedicated day per year for volunteering., • Two professional development days per year to allow uninterrupted professional development., • An additional PTO day added during milestone anniversary years., • Robust paid holiday schedule with early dismissal., • Generous parental leave for all parents (including adoptive parents)., • Work-Life Support & Resources:, • Budget for tech accessories, including monitors, headphones, keyboards, and other office equipment., • Milestone anniversary bonuses., • Wellness & Lifestyle Perks:, • Subsidy contributions toward gym memberships and health/wellness initiatives (including discounted healthcare premiums, healthy meal delivery programs, or smoking cessation support)., • Our Culture:, • Forward-thinking, culture-based organization with collaborative teams that promote diversity and inclusion. Trading Technologies (www.tradingtechnologies.com) is a global capital markets platform services company providing market-leading technology for the end-to-end trading operations of Tier 1 banks, brokerages, money managers, hedge funds, proprietary traders, Commodity Trading Advisors (CTAs), commercial hedgers, and risk managers. With its roots in listed derivatives, the Software-as-a-Service (SaaS) company delivers “multi-X” solutions, with “X” representing asset classes, functions, workflows, and geographies. This multi-X approach features trade execution services across futures and options, fixed income, foreign exchange (FX), and cryptocurrencies, augmented by solutions for data and analytics, including transaction cost analysis (TCA); quantitative trading; compliance and trade surveillance; clearing and post-trade allocation; and infrastructure services. The #J-18808-Ljbffr

Belfast, UK Hybrid Schedule (M/F remote, T/W/TH in-office) Rust Engineer / Engineer IIBelfast, UKHybrid Schedule (M/F remote, T/W/TH in-office)At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of people read, watch, and buy, and we’re looking for people to help us tackle that responsibility with creativity and focus. Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats including CTV / streaming, online video, display, and audio. Our tech fuels billions of transactions per day! We are looking for an Engineer II to join our growing team of enthusiastic engineers working on core, large scale, real time systems. Every day, as a company we serve billions of ads, process terabytes of data and provide valuable data and insights to our publishers and buyers. Every month our systems are used by 200+ million people around the world. You will be working hands-on in a smart team that is focused on the architecture of, and process innovation around, the application at the forefront of this real-time processing. We value engineers who take ownership and are supported by a collaborative team in solving challenging problems. We look for engineers who are continuous learners and value high-quality, scalable code. You will spend your time technically hands-on, designing, coding, testing your code and working with the product team and your engineering peers on requirements and design discussions. If this sounds like you, or the engineer you want to be, we want to hear from you! • Write production-ready code and unit tests that meet both system and business requirements., • Respond to feature requests, bug reports, performance issues and ad-hoc questions., • Work collaboratively with multiple teams to deliver quality, business critical software., • Support operation of services in production., • 2+ years of systems programming experience in Rust, C, C++, Go, Java or a comparable language with enthusiasm to write production Rust (we will help you ramp up with dedicated mentorship!)., • Understanding of data structures and algorithms., • Experience building and operating large-scale, high-traffic enterprise server applications., • Experience with Low-Latency Mechanics: Threading, concurrency, and memory management with a focus on minimizing latency., • Able to balance high-quality development with pragmatism and consistent, sustainable product delivery., • Bachelor’s degree in Computer Science or equivalent practical/industry experience., • Experience working in a Linux environment., • Familiarity with networking protocols., • Desire to work in an environment where software engineers are full participants in shaping the product and the business., • Creative problem-solver who can draw on an array of expertise and technology to design and implement reliable, scalable and maintainable solutions., • We are committed to building a diverse and inclusive team. We encourage candidates from all backgrounds to apply, even if you don't meet 100% of the listed requirements., • Comprehensive Healthcare Coverage from Day One, • Generous Time Off, • Holiday Breaks and Quarterly Wellness Days, • Equity and Employee Stock Purchase Plan, • Family-Focused Benefits and Parental Leave, • 401k Retirement Savings Plan with Employer Match, • Disability and Life Insurance, • Cell Phone Subsidy, • Fitness and Wellness Reimbursement We believe collaboration is essential to success. Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday). Our offices provide catered lunches, beverages, snacks, training and development, and office events to support your work week. We also understand you have appointments, families, hobbies, and other commitments. Magnite strives to maintain a healthy work/life integration for all employees so you can bring your best every day - both at work and at home. • Community Service and Volunteer Events, • Company-Matched Charitable Contributions, • Wellness Coach and Mental Health Support, • Career Development Initiatives and a Career Growth Framework, • Culture and Inclusion Programs, • Bonusly Peer-to-Peer Recognition Program The world’s leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month. Anchored in bustling New York City, sunny Los Angeles, mile-high Denver, historic London, and down under in Sydney, Magnite has offices across North America, EMEA, LATAM, and APAC. Magnite is an Equal Opportunity Employer and does not discriminate against applicants due to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other federal, state or local protected class. Our Commitment: We aim to incorporate a wide range of voices into our Magnite culture, cultivating an environment where employees feel welcomed, cared for, and encouraged to freely share ideas. We are committed to employee growth, collaboration, inclusion, and innovation. We invest in Magnite’s local communities. We seek talent from all backgrounds to champion corporate values of seeing the big picture and being catalysts of change. Check out our blog for Magnite announcements and Ad Tech industry news! #J-18808-Ljbffr

Kigen enable businesses to grow their Internet of Things rapidly through the SIM, eSIM and iSIM technologies and are pushing the boundaries in the industry. Working with a number of high-profile customers globally, our growing business is excited to be expanding our team in Belfast. Help keep the world's SIMs and eSIMs running — securely, reliably, and at scale.At Kigen, our platforms and infrastructure underpin SIM and eSIM services used across the globe. We're looking for a Platform / Infrastructure Engineer to own and maintain the systems — spanning our on-premises data centre estate and public cloud — that keep production stable, compliant, and always on. • Administer and secure our on-premises data centre estate alongside public cloud environments (AWS, GCP or similar)., • Own OS patching, certificate lifecycle, and vulnerability remediation across the estate., • Build and maintain configuration management and automation (Ansible or similar) for consistent, repeatable infrastructure changes., • Support containerised workloads (Docker, Kubernetes or similar)., • Maintain logging, monitoring, and observability tooling (ELK stack or similar)., • Manage secure file transfer services (MFT/SFTP or similar) for partner and customer data exchange., • Configure and troubleshoot load balancing (F5 or similar) and monitor the virtualised estate., • Own developer environments and artifact repositories (Nexus or similar)., • Take part in an on-call rotation as a first responder for production incidents., • Provide hands-on support at our Dublin data centre, with travel as required., • Hands-on experience with virtualisation and on-premises server infrastructure (VMware ESXi or similar)., • Strong, proven experience with Linux., • Experience with configuration management / infrastructure-as-code (Ansible, Terraform or similar)., • Experience with logging and monitoring stacks (ELK or similar)., • Understanding of containerisation and orchestration (Docker, Kubernetes or similar)., • Good grasp of security concepts, including vulnerability management and certificate/PKI lifecycle., • Experience with git and artifact repositories (Nexus or similar).Willingness to travel to our Dublin data centre as required., • Strong communication skills and comfort working autonomously., • Willingness to participate in an on-call rotation., • Experience administering public cloud infrastructure (AWS, GCP, Azure or similar) at scale., • Scripting ability (Python, Bash or similar)., • Exposure to cloud cost optimisation / FinOps practices., • Experience in a regulated or security-sensitive industry (telecoms, SIM/eSIM or similar)., • Familiarity with ITIL or similar change/incident management processes. At Kigen we like to ensure our people are well supported and rewarded for what they do. We offer a competitive salary and benefits package, along with a great flexible working culture. This role would be fully remote within Northern Ireland, but with plenty of opportunity to meet and collaborate with colleagues. We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, colour, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class. #J-18808-Ljbffr

Enso Recruitment is proud to be working with a global, technology-driven financial services organisation who are expanding their engineering capability within a highly critical connectivity platform. They are now seeking an experienced Java Engineer to join a specialist team building and supporting low-latency, client-facing connectivity services. This is a hands‑on engineering role suited to someone with strong Java experience, a background in electronic trading environments, and a deep understanding of FIX-based connectivity. You’ll be part of a team responsible for designing, enhancing, and supporting a business‑critical connectivity platform used by external clients and internal trading systems. Key responsibilities include: • Designing, developing, and enhancing client‑facing and outbound connectivity services, • Supporting and evolving FIX‑based connectivity platforms in a production environment, • Contributing to the design and improvement of automated testing frameworks, • Participating in functional, regression, integration, and performance testing, • Acting as third‑line support for complex production issues, • Working closely with product, support, and engineering teams to resolve issues and improve platform stability, • Contributing to the ongoing reliability, performance, and scalability of connectivity services, • Strong commercial experience as a Java Engineer working on Linux-based systems, • Background in electronic trading environments or trading system providers, • Solid working knowledge of the FIX Protocol, • Experience building and supporting distributed systems and messaging‑based architectures, • Comfortable working with SQL, Linux, and backend system troubleshooting, • Exposure to Python for scripting, tooling, or automation, • Confident operating in high‑availability, low‑latency environments, • Strong problem‑solving skills and the ability to remain calm under pressure, • Salary: Up to £48k, • Hybrid Working, • Bonus, • Pension, • Ongoing Learning and Support To find out more about this opportunity, hit Apply or reach out to a member of the Enso Recruitment team today!✉️📞 #J-18808-Ljbffr

A global technology organization is seeking a Software Support Team Lead to establish a high-performing support function in Belfast. This senior, hands-on role involves leading a Level 2 application support team, managing critical production issues, and implementing ITIL practices. You will oversee application deployments, monitor system performance, and mentor team members. Strong candidates will have experience in Windows/Linux environments, SQL, and automation tools like PowerShell and Ansible. This position offers a competitive salary, potential bonuses, and opportunities for professional development. #J-18808-Ljbffr

Kigen, a leader in IoT SIM/eSIM platform infrastructure, is expanding its Belfast team.We seek a Platform / Infrastructure Engineer to own and secure systems across on‑prem data centre estates and public cloud, keeping production stable and compliant.You will work with VMware ESXi, Linux, Ansible/

A technology scaleup in Belfast seeks a Firmware Engineer to work on an embedded Linux camera platform. Candidates should have a degree in Electronics or a related field and at least four years of embedded firmware experience.

TelefonicaTech ·United Kingdom, Belfast We are seeking an experiencedLevel 3 Linux Engineerto support, maintain, and enhance critical Linux environments. This role involves troubleshooting complex issues, ensuring system reliability, and leading the delivery of high-impact projects. The successful candidate will work closely with cross-functional teams to optimize performance, security, and scalability of Linux-based systems. You will have deep expertise and experience in Linux operating systems and environments. You will also have good foundational knowledge in multiple capabilities ranging from VMware, Windows Active Directory Services, DHCP, DNS, PKI, File Services, SQL, Backups, Citrix, Storage, and Data Center. Collaboration will be a key aspect of this role as you will work closely with Technical Services colleagues and Project Teams to deliver new services, upgrades, and BAU support. Drawing upon your technical expertise and experience, you will ensure that services are built in alignment with industry and contractual best practices. You will expected to offer technical insights and challenging solutions to ensure the adoption of best practices. Additionally, you will play a vital role in continuously providing security assurance for all services and actively seek opportunities for service and process improvements. In this role, we expect you to be confident and proactive, unafraid to challenge existing solutions and recommend best practices. As a Level 3 Linux Engineer, you will be relied upon for your technical prowess and will provide guidance and assistance to the wider team whilst also being able to service as a coach and mentor to junior members. You will also assist with any escalations within the team to aid incident and problem resolution, while maintaining a strong focus on delivering continuous service improvements. We expect you to possess exceptional troubleshooting skills and the ability to work independently. Your proactive approach to addressing technical challenges will contribute to the continuous improvement of our infrastructure. Adherence to company policies and procedures will be of utmost importance as you uphold our standards of excellence. Telefónica Tech(part of the Telefónica Group) is a leading NextGen Tech solutions provider with a highly diversified team of over 6,000 exceptionally skilled employees and +60 nationalities. We serve more than 5.5m customers every day in over 175 countries, with a global ecosystem of market-leading partners. Global strategic hubs: Spain, Brazil, the UK, Germany. The Telefónica Tech UK&I hub has an end- to-end portfolio of market leading services and develops integrated technology solutions to accelerate digital transformation through: Cloud, Data & AI, Enterprise Applications, Workplace Services and Cyber Security & Networking. Values:Open, Trusted and Bold Trusted Partners: • HPE:Platinum Partner – FY23 UK&I Solution Provider of the Year, • Palo Alto & Crowdstrike:part of our NextDefense Cyber Security Portfolio, • Fortinet:Elite VIP Program – one of only 2 in the UK, • AWS:Advanced Solution & Managed Service Provider Program #J-18808-Ljbffr

ABOUT ORACLE CLOUD Oracle Cloud is the first public cloud built from the ground up to be a better cloud for every application. By rethinking core engineering and systems design for cloud computing, we created innovations that solve problems that customers have with existing public clouds. We accelerate migrations of existing enterprise workloads, deliver better reliability and performance for all applications, and offer the complete services customers need to build innovative cloud applications. There are six key reasons customers are choosing Oracle Cloud Infrastructure (OCI) for all their cloud workloads. ABOUT THE TEAM Oracle Cloud’s Government, Defence, and Intelligence team is a smart, motivated, and diverse group that is focused on bringing the world’s most important work to OCI. We build and operate our government, classified, and sovereign cloud regions to be reliable and high-performance, just like our public cloud. Our customers and their mission are the center of what we do. We strive to improve our knowledge of the challenges our customers face which we use to enhance our cloud capabilities and work together to deliver their mission. JOB DESCRIPTION We're looking for a Technical Operations Engineer responsible for the operation of production environments, including systems and databases, supporting critical business operations. You will perform administration and analysis for multiple production environments and learn new and novel solutions to improve availability, performance, and supportability. This is an opportunity to gain a combination of technical, administration, and analysis knowledge of Oracle's Cloud Infrastructure and provide escalation support to a wide range of complex production environment problems related to immense growth, scaling, leveraging the cloud, extremely high performance, and high availability requirements. OCI IN Northern Ireland As cloud investment in Northern Ireland continues to grow, companies and governments are moving more mission critical workloads to cloud, and Oracle is ensuring full support to our customers with our offerings. Oracle Cloud Isolated Regions (OCIR) are secure, air-gapped Oracle Cloud Infrastructure (OCI) solutions designed to meet the higher demands of global customers’ mission-critical classified workloads. These regions provide all OCI public cloud services (IaaS/PaaS/SaaS) in a physical location of the customer's choosing, supported and operated by dedicated personnel. RESPONSIBILITIES Install, monitor, maintain, support, and optimize all production server hardware and software. Provide escalated technical support for complex technical issues which may include leading problem management cases and providing management status. Coordinate escalated support cases and lead appropriate internal technical resources and/or third-party vendors to resolution and coordinate a storage infrastructure of Oracle system and database appliances. Responsible for Oracle production environments; assist with server operating system and application upgrades, bug fixes, and patching; and work on standardization projects for both hardware and software under the Oracle technology stack while providing consistent system uptime as expected in a Cloud environment. Provide on-call support on a rotating basis. REQUIREMENTS This role is open to Northern Ireland nationals only. This role will involve the successful applicant working on government projects which may require security clearance being obtained and maintained as a condition of employment. Candidates applying for this role must be willing to provide necessary personal details for the application and maintenance of necessary security clearance. Experience with Linux System Administration, Kubernetes, Cloud, Exadata, Networking, Database, Storage, Compute, Virtualization and Troubleshooting Experience participating in or running incident bridges. Customer focus, passion for delighting customers. Experience in cloud technical support, operations, incident management is preferred, but not required. Demonstrate ability to quickly learn new technical disciplines. #J-18808-Ljbffr

At Kainos, we use technology to solve real-world problems that matter — transforming d... As a Lead Security Engineer (Consultant) in Kainos, you will be responsible for leading our security engineering and security testing efforts across Kainos Platforms and Services. They will set direction on our security testing methodology, engagement scoping, outputs and tool/technology selections, whilst developing our more junior security engineers accordingly. They’ll work with agile delivery teams to develop good security practices throughout the software development journey. As a technical leader in the team, you will share knowledge and help educate our customers and Kainos team members on good security practices. You’ll manage, coach and develop a small number of staff, with a focus on managing employee performance and assisting in their career development. You’ll also provide direction and leadership for your team as you solve challenging problems together. • Expertise in securing Web Applications and Cloud Platforms (e.g. AWS/Azure)., • Experience in Defence Sector, • Current, Active Security Clearance, • Expertise of testing software and infrastructure security using existing manual or automated security tools, e.g. perform and document penetration tests on web-based applications, networks and computer systems., • Expertise in assessing software and infrastructure source code from a security standpoint., • Expertise in Continuous Security, Continuous Integration and Continuous Delivery techniques, • Knowledge of international security standards and regulations such as NCSC, NIST, CIS, PCI, GDPR, OWASP ASVS, HIPPA, SOC2 etc., • Knowledge of typical cyber security attack vectors (e.g. OWASP Top 10, SQL, XSS, XXE, MITM etc.) and can articulate threats and risk via threat modelling exercises/workshops, • Excellent communication skills, with the ability to convey security complexities to audiences of various technical abilities., • We are passionate about developing people – a demonstrated ability in managing, mentoring and coaching members of your team and wider community is important, • Good programming or scripting experience across Windows/Linux/MacOS, • Stays up to date with new threats and attack types., • Penetration testing qualifications (e.g. OSCP, CREST, TIGER or equivalent), • Experience of working with the external penetration test companies to translate report findings into actionable tasks., • Experience with security tools (e.g. Burp Suite, OWASP-ZAP, NMAP, Nessus, Kali, Metasploit etc.), • Knowledge about main cyber security areas (e.g. OSINT, network scanning, enumeration, sniffing, session hijacking, social engineering, firewalls, honeypots, IDS/IPS/WAF/AV/DLP, Cryptography/PKI,IoTthreats, trojans/viruses/worms/backdoors/ransomware, etc.), • Active participation in knowledge sharing activities, both within the team and at a wider level, • Active in the security community – conference speaking, active sharing of knowledge externally, • Experience of working in an Agile environment #J-18808-Ljbffr

Mandatory Skills : Java, Spring, SpringBoot, SpringMVC Mode-3 Days from Belfast Type-FTE/Perm Experience with Java NIO components like Channels Buffers and Selectors is expected Expert knowledge of FIX protocol Market Connectivity and Low latency programming is a must Very strong in Java and Spring Boot based application development Experience with middle layer messaging services like JMS MQ EMS or Kafka Strong at RDBMS concepts and experience with Oracle Sybase or MS SQL Cloud experience with Micro Services and Containerization is a big plus Test driven development and to adhere with firms min development standards Experience with Unix or Linux scripting Solid experience with CICD tools Agile Development and Software life cycle Basic experience with MS office platform tools like Work PPT and Excel is necessary Bachelors degreeUniversity degree or equivalent experience Worked with projects in financial services domain Excellent analytical communication and interpersonal skills Ability to work independently take ownership trouble shoot and multitask #J-18808-Ljbffr

• Microservice Architecture. TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions. Through our people and technology, we connect clients to superior liquidity and data solutions. The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world’s leading provider of OTC data, and an award winning all-to-all trading platform. The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist. TP ICAP has Partnered with Amazon Web Services (AWS) to build the Next Generation of the Fusion Platform and make it Global Market Infrastructure. This role will be working in a new team to build out a new Platform based on the latest technology and architecture. You will be working alongside AWS and learning from the best. As a Senior Engineer you will be responsible for demonstrating excellent technical competencies with a desire to improve and mentor junior members of the team. You will take responsibility for your assigned work by taking ownership of the design, development testing and deployment of software across the team, and work closely with the Principal Engineer, Architects and Leads to ensure the successful deployment into production environments. The Fusion Platform Team builds, owns and runs its own services all the way through to Production. The services are used 24/5 by several teams. As part of a global team, there may be times when you are asked to assist with production incidents or support outside regular hours to maintain operational stability. • Be able to drive engineering improvements whilst communicating principles behind your work to other team members and the wider organisation., • Be proactive in supporting the team’s engagement in a well-defined SDLC that supports planning, prioritisation and delivery needs., • Support the team in leading conversations around estimation by leveraging previous experience, challenging requirements and fostering potential solutions., • Lead conversations around software systems to enable meaningful conversations about wider system architecture with Engineers., • Evolve systems towards target state architecture by refactoring and prioritisation of deliveries., • 5+ years of demonstrable industry experience as a Full Stack or Front/Backend Engineer in Typescript in a professional environment., • Front-end skills, • Proficient in HTML5, CSS3, and Typescript, • Proficient in React, Redux, ReactQuery, • Experience with modern JavaScript frameworks - React, • Knowledge of version control systems (Git), • Understanding of cross-browser compatibility, • Familiarity with RESTful APIs, GraphQL and Websockets, • Experience with CSS pre-processors e.g. Tailwind, • Back-end skills, • Proficiency in backend programming languages (Typescript and/or other OOP language such as c#/Java), • Strong database knowledge (SQL and NoSQL), • Proficiency with RESTful APIs and GraphQL APIs and Websockets, • Experience with microservices architecture, • Knowledge of version control systems (Git), • Experience with Terraform, • Experience with automated testing, • Experience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync), • Worked within an Agile Cross-functional delivery team., • Developing well tested software into low latency event driven production environments., • Full software development lifecycle in a technical role., • Pub/Sub patterns with Messaging technologies (such as SOLACE/AMQP), • Worked within a technical platform team, delivering reusable services across multiple agile projects., • Microservice Architecture., • Containerization., • Maintaining code quality with Unit, Integration and e2e testing., • AWS cloud ecosystem and the AWS CLI (or industry equivalent)., • Linux shell or Windows PowerShell., • CI and CD flows within an enterprise environment. Continuous Delivery, • Agile tooling to support team delivery, such as JIRA and other project management systems., • Open to innovative ideas/ experiences and ability to create new ideas, approaches or insights., • Seeks opportunities for improvements., • Demonstrates high levels of energy in seeking out and achieving new goals., • Can work with BA’s/PO’s to demystify ambiguity, handle challenge, and is comfortable to challenge team mates constructively., • Adapts communication style to suit audience., • Works ethically and shows respect for both professional and company values., • Excellent attention to detail, highly organised with a proactive approach., • Strong analytical ability and innovative problem solving skills., • Software Design Patterns., • Source control (Git)., • OOP \ SOLID Principles., • Demonstrable experience of C# (.Net 8+) in a professional environment., • Contribution to open-source projects., • Experience of regulatory driven projects., • Knowledge of Financial Markets, Systems and Over the Counter (OTC) products., • Manager / 6 Concerned that you may not meet the criteria precisely? At TP ICAP, we wholeheartedly believe in fostering inclusivity and cultivating a work environment where everyone can flourish, regardless of your personal or professional background. If you are enthusiastic about this role but find that your experience doesn't align perfectly with every aspect of the job description, we strongly encourage you to apply. You may be the ideal candidate for this position or another opportunity within our organisation. Our dedicated Talent Acquisition team is here to assist you in recognising how your unique skills and abilities can be a valuable contribution. Don't hesitate to take the leap and explore the possibilities. Your potential is what truly matters to us. We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement. UK - City Quays 3 - Belfast #J-18808-Ljbffr

Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers. At Apex, we are changing how the securities industry operates by reinventing the status quo, which was manual, slow, and accessible only by the ultra-wealthy. We're digitizing and democratizing systems so that everyone has an opportunity to invest. When you're at Apex, you drive this change. You're part of a global team with a clear vision: to be the trusted technology that powers the digital economy. Our offices in Austin, Dallas, Chicago, New York, Portland, Belfast, and Manila are home to over 1,000 employees. Together, we’re shaping the future of financial innovation. Embrace change. Solve big. Win together. And be G.R.E.A.T. — grit, results, empathy, accountability, and teamwork — with Apex. We’re proud to be recognized for the innovative work we do, the purpose-driven nature of our work, and the collaborative culture we’ve created. Here are just a few of the many awards we’ve recently received: 2026, 2025, 2024, 2023- Presented by BuiltIn 2025- Presented by US FinTech Awards 2024- Presented by CNBC We are seeking a skilled and customer-oriented Application Support Engineer to join our production support team. In this role you will act as the primary escalation point for production issues, work alongside engineering to resolve complex problems, and use AI tooling to remove repetitive work. • Serve as the escalation point for frontline support, owning complex production issues end to end from triage through resolution and client communication, • Participate in major incident response, providing impact analysis and actionable recommendations, • Monitor system performance and availability, resolving issues before they impact clients, • Manage production access and support configuration and change management activities, • Use AI tooling to accelerate investigation, including log analysis, data extraction, and issue reproduction, • Build and maintain automations and reusable AI assets that other engineers can run, • Validate AI-generated output before it reaches a client, a ticket, or production, • Collaborate with development teams on fixes and improvements, and mentor newer engineers on the team, • Create and maintain runbooks, troubleshooting guides, and knowledge base articles, • Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent work experience, • 3+ years of experience in application support, preferably in a financial services or trading environment, • 2+ years in a customer-facing role, • Strong foundational knowledge of networking, operating systems (Linux and Windows), and databases (MSSQL and/or NoSQL), • Hands‑on experience using AI coding assistants or LLM‑based tooling in a professional setting, • Ability to read and modify application code in a compiled language preferred, • Strong understanding of REST APIs, Google Cloud Platform, and microservices architecture, • Proficiency in SQL and NoSQL databases (MSSQL, MongoDB, Postgres), • Solid networking knowledge, including TCP/IP, DNS, and network security concepts, • Experience with Linux and Windows operating systems, • Strong scripting abilities in Python and PowerShell, • Practical skill with AI coding assistants, including the ability to break a problem into a workable prompt, iterate on the output, and recognize when the tool is wrong. Experience with Claude Code preferred, • Judgment about where automation pays off and where a process should stay manual, • Excellent problem-solving and analytical skills, with the ability to troubleshoot complex technical issues, • Strong customer service orientation and ability to communicate technical concepts to non-technical audiences, • Experience with observability and ticketing platforms such as Datadog, Jira, Zendesk, Confluence, and PagerDuty is a plus, • Familiarity with trading systems, financial markets, and regulatory requirements is a plus, • This role operates in a hybrid environment, in office 3 days per week. Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice. We offer a robust package of employee perks and benefits, including a market-leading salary with an annual bonus, 28 days of annual leave plus 10 Northern Ireland national holidays, a training and development budget, and a pension matched up to 7%. Our benefits also cover private health insurance for medical, dental, and optical care, and life insurance. We emphasize work-life balance with flexible working hours, parental leave, a modern city center office, and a hybrid work schedule that allows for greater flexibility by partially working from home. Additional perks include monthly catered lunches, unlimited drinks and snacks, hackathon events, poker tournaments, and a charitable matching gift program. Apex Fintech Solutions is an equal opportunity employer that does not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, marital status, or any other protected characteristic. Our hiring practices ensure that all qualified applicants receive fair consideration without regard to these characteristics. Apex Fintech Solutions is committed to creating an inclusive and accessible workplace for all candidates, including those with disabilities. We are dedicated to ensuring equal employment opportunities and providing reasonable accommodations to qualified individuals with disabilities. If you require reasonable accommodations to participate in the application or interview process, please submit your request via the Candidate Accommodation Requests Form. We will work with you to provide the necessary accommodations to ensure your full participation in our hiring process. #J-18808-Ljbffr

The Global Fixed Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. This role is within the FiTP team in Belfast, United Kingdom. The successful individual will ideally have a good knowledge of Fixed Income products and experience in building software systems to handle the capture and processing of high volume of such trades. In this fast paced environment you must be able to prioritize tasks, work within deadlines, taking a pragmatic and thoughtful approach, paying close attention to details. You will need to employ strong Communication skills, necessary to effectively produce client solutions. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. • Bachelor's degree with a relevant major (Computer Science, Information Technology, Mathematics, Engineering, or similar), • Proven experience in design and development of high performance, low-latency, multi-threaded applications., • Extensive hands-on development experience in Java., • Demonstrated ability to learn new business concepts and technologies., • Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements., • Solid understanding of software development fundamentals including data structures, design patterns and object-oriented programming., • Proficiency in core Java demonstrable success in developing multi-threaded applications and expert level knowledge in data structures, algorithms, collections, and error handling., • Spring Framework (and Spring Boot): This is almost non-negotiable for enterprise Java development. Expertise in Spring Boot for rapid application development, Spring MVC for web applications, Spring Data JPA for persistence, and Spring Security for authentication / authorization., • Microservices Architecture: Understanding how to design, develop, and deploy independent, loosely coupled services, which is a common pattern for applications running on ECS., • RESTful APIs: Designing, developing, and consuming RESTful web services using Java and Spring Boot., • Build Tools: Maven or Gradle for project management and build automation., • Proven ability to develop clean, testable code., • Understanding of relational database concepts and knowledge in SQL., • Experience with Jira, Git/Bitbucket, Gradle and CI/CD tools, e.g. TeamCity and UrbanCode Deploy., • Experience with Linux/Unix., • Knowledge on cloud technologies e.g. Artifactory, Docker and OpenShift., • Knowledge of fixed income products, customer and broker market platforms and trading protocols desirable. By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: • 27 days annual leave (plus bank holidays), • A discretional annual performance related bonus, • Private Medical Care & Life Insurance, • Employee Assistance Program, • Pension Plan, • Paid Parental Leave, • Special discounts for employees, family, and friends, • Access to an array of learning and development resources Visit our Global Benefits page to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Time Type: Full time Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi's EEO Policy Statement and the Know Your Rights poster. #J-18808-Ljbffr

Apex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers. At Apex, we are changing how the securities industry operates by reinventing the status quo, which was manual, slow, and accessible only by the ultra-wealthy. We're digitizing and democratizing systems so that everyone has an opportunity to invest. When you're at Apex, you drive this change. You're part of a global team with a clear vision: to be the trusted technology that powers the digital economy. Our offices in Austin, Dallas, Chicago, New York, Portland, Belfast, and Manila are home to over 1,000 employees. Together, we’re shaping the future of financial innovation. Embrace change. Solve big. Win together. And be G.R.E.A.T. — grit, results, empathy, accountability, and teamwork — with Apex. We’re proud to be recognized for the innovative work we do, the purpose-driven nature of our work, and the collaborative culture we’ve created. Here are just a few of the many awards we’ve recently received: 2026, 2025, 2024, 2023- Presented by BuiltIn 2025- Presented by US FinTech Awards 2024- Presented by CNBC As a DevOps Engineer you will be a key member of the Apex Tax and Cost Basis engineering team, responsible for designing, building, and maintaining the automation that runs our batch processing platform across client environments. Your primary focus will be converting today's run-day and disaster recovery scripts into parameterized, orchestrated deployment pipelines and workflows, and building the deployment management tooling that tracks which version is running in each environment. This is a hybrid application engineering / systems engineering role: you will support new client implementations and custom scripts on the application side, and manage pipelines and run-day operations on the systems side. You will work closely with our development, TechOps, and cloud infrastructure teams to make the platform more sustainable and scalable. Migrate existing run-day, disaster recovery, and operational scripts into orchestrated deployment pipelines and workflows. Design, build, and operate production workflows with clear dependencies, retries, and alerting. Refactor runtime scripts so they are parameterized, reusable, and environment-agnostic, eliminating hardcoded per-client and per-environment values and the manual edits that come with them. Build and maintain tooling that tracks build versions across environments (development, QA, UAT, production) and automates deployment and promotion between them. Support new client onboarding by developing and adapting custom scripts, configuration, and automation on the application side. Manage processing pipelines and run-day operations. Troubleshoot batch failures, identify root cause, and replace repeat manual intervention with durable automated fixes. Build and operate automation on Amazon Web Services (AWS) using native CLIs, SDKs, and infrastructure-as-code practices. Build alerting and notification automation (Slack, email) so failures and stalls surface before they affect clients. Think critically about existing processes and propose better solutions rather than maintaining the status quo. Drive improvements that make the platform more sustainable and scalable. Maintain comprehensive documentation of workflows, runbooks, deployment procedures, and automation standards. Collaborate with development, TechOps, and infrastructure teams to streamline how work moves from code to production. • Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience)., • 3+ years experience as a developer (Python, Java, shell, etc.)., • Hands-on experience building and operating orchestrated deployment pipelines and production workflows., • Strong Python and shell scripting (bash) skills., • Experience with cloud platforms, primarily Amazon Web Services (AWS), and automating against them., • Experience with Linux system administration and troubleshooting., • Familiarity with Continuous Integration / Continuous Delivery (CI/CD) pipelines and managing versions and releases across multiple environments., • Working knowledge of SQL and relational databases (PostgreSQL)., • A developer's mindset applied to operations: the ability to see a manual process, understand why it exists, and design something better., • Excellent problem-solving and troubleshooting skills., • Strong communication and teamwork abilities., • Experience working with Apache Airflow or similar workflow orchestration tools., • Experience automating disaster recovery processes., • Experience with infrastructure-as-code tools (Terraform, CloudFormation)., • Java development experience., • Background in financial services, brokerage operations, tax reporting, or cost basis processing. Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice. We offer a robust package of employee perks and benefits, including a market-leading salary with an annual bonus, 28 days of annual leave plus 10 Northern Ireland national holidays, a training and development budget, and a pension matched up to 7%. Our benefits also cover private health insurance for medical, dental, and optical care, and life insurance. We emphasize work-life balance with flexible working hours, parental leave, a modern city center office, and a hybrid work schedule that allows for greater flexibility by partially working from home. Additional perks include monthly catered lunches, unlimited drinks and snacks, hackathon events, poker tournaments, and a charitable matching gift program. Apex Fintech Solutions is an equal opportunity employer that does not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, marital status, or any other protected characteristic. Our hiring practices ensure that all qualified applicants receive fair consideration without regard to these characteristics. Apex Fintech Solutions is committed to creating an inclusive and accessible workplace for all candidates, including those with disabilities. We are dedicated to ensuring equal employment opportunities and providing reasonable accommodations to qualified individuals with disabilities. If you require reasonable accommodations to participate in the application or interview process, please submit your request via Candidate Accommodation Requests Form. We will work with you to provide the necessary accommodations to ensure your full participation in our hiring process. #J-18808-Ljbffr

The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions. Through our people and technology, we connect clients to superior liquidity and data solutions. The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world’s leading provider of OTC data, and an award winning all-to-all trading platform. The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist. TP ICAP has Partnered with Amazon Web Services (AWS) to build the Next Generation of the Fusion Platform and make it Global Market Infrastructure. This role will be working in a new team to build out a new Platform based on the latest technology and architecture. You will be working alongside AWS and learning from the best. As a Senior Engineer you will be responsible for demonstrating excellent technical competencies with a desire to improve and mentor junior members of the team. You will take responsibility for your assigned work by taking ownership of the design, development testing and deployment of software across the team, and work closely with the Principal Engineer, Architects and Leads to ensure the successful deployment into production environments. The Fusion Platform Team builds, owns and runs it’s own services all the way through to Production. The services are used 24/5 by several teams. As part of a global team, there may be times when you are asked to assist with production incidents or support outside regular hours to maintain operational stability. Be able to drive engineering improvements whilst communicating principles behind your work to other team members and the wider organisation. Be proactive in supporting the team’s engagement in a well-defined SDLC that supports planning, prioritisation and delivery needs. Support the team in leading conversations around estimation by leveraging previous experience, challenging requirements and fostering potential solutions. Lead conversations around software systems to enable meaningful conversations about wider system architecture with Engineers. Evolve systems towards target state architecture by refactoring and prioritisation of deliveries. • 5+ years of demonstrable industry experience as a Full Stack or Front/Backend Engineer in Typescript in a professional environment., • Front-end skills, • Proficient in HTML5, CSS3, and Typescript, • Proficient in React, Redux, ReactQuery, • Experience with modern JavaScript frameworks - React, • Knowledge of version control systems (Git), • Understanding of cross-browser compatibility, • Familiarity with RESTful APIs, GraphQL and Websockets, • Experience with CSS pre-processors e.g. Tailwind, • Back-end skills, • Proficiency in backend programming languages (Typescript and/or other OOP language such as c#/Java), • Strong database knowledge (SQL and NoSQL), • Proficiency with RESTful APIs and GraphQL APIs and Websockets, • Experience with microservices architecture, • Knowledge of version control systems (Git), • Experience with Terraform, • Experience with automated testing, • Experience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync), • Worked within an Agile Cross-functional delivery team., • Developing well tested software into low latency event driven production environments., • Full software development lifecycle in a technical role., • Pub/Sub patterns with Messaging technologies (such as SOLACE/AMQP), • Worked within a technical platform team, delivering reusable services across multiple agile projects., • Microservice Architecture., • Containerization., • Maintaining code quality with Unit, Integration and e2e testing., • AWS cloud ecosystem and the AWS CLI (or industry equivalent)., • Linux shell or Windows PowerShell., • CI and CD flows within an enterprise environment., • Continuous Delivery Agile tooling to support team delivery, such as JIRA and other project management systems., • Open to innovative ideas/ experiences and ability to create new ideas, approaches or insights., • Seeks opportunities for improvements., • Demonstrates high levels of energy in seeking out and achieving new goals., • Can work with BA’s/PO’s to demystify ambiguity, handle challenge, and is comfortable to challenge team mates constructively., • Adapts communication style to suit audience., • Works ethically and shows respect for both professional and company values., • Excellent attention to detail, highly organised with a proactive approach., • Strong analytical ability and innovative problem solving skills., • Software Design Patterns., • Source control (Git)., • Desired OOP / SOLID Principles., • Demonstrable experience of C# (.Net 8+) in a professional environment., • Contribution to open-source projects., • Experience of regulatory driven projects., • Knowledge of Financial Markets, Systems and Over the Counter (OTC) products. Not The Perfect Fit? Concerned that you may not meet the criteria precisely? At TP ICAP, we wholeheartedly believe in fostering inclusivity and cultivating a work environment where everyone can flourish, regardless of your personal or professional background. If you are enthusiastic about this role but find that your experience doesn't align perfectly with every aspect of the job description, we strongly encourage you to apply. You may be the ideal candidate for this position or another opportunity within our organisation. Our dedicated Talent Acquisition team is here to assist you in recognising how your unique skills and abilities can be a valuable contribution. Don't hesitate to take the leap and explore the possibilities. Your potential is what truly matters to us. We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement. Location UK - City Quays 3 - Belfast Connecting clients, communities and colleagues for sustainable growth TP ICAP connects people, platforms, ideas, and insight across the world’s financial, energy and commodities markets. As a global leader in market infrastructure and data-led solutions, we enhance market access, increase efficiencies, and unlock possibilities. Work with us Joining TP ICAP puts you at the heart of markets that matter. You’ll have the freedom to innovate and act on your initiative. We’ll train you and build your abilities in your specialist area, so that you can become an expert in your field. And all within a connected network that’s there to set you up for success. More about us TP ICAP Group is a collection of premium brands each with a distinct, client-focused offering. Underpinning and connecting these client-facing brands is the financial security, operational strength and know-how we have as a Group. Connections are at the heart of what we do. We combine our people’s know-how with the latest technology to improve price discovery, trade execution and liquidity flow. Connections create strength. Through them, we help our clients to manage risk, realise investment strategies and expand the scope for growth. And connections act as a catalyst. Sparking richer solutions for our clients to break new ground, modernising markets for future performance, and creating dynamic careers for our people. Our capacity to connect builds trust, supports communities and gives us the power to anticipate and respond to change, whatever direction the world takes. It’s what makes TP ICAP a mainstay in the global markets, now and in the future. TP ICAP. We connect. #J-18808-Ljbffr

Citi Belfast is hiring a KDB+ Software Engineer to design and deploy timeseries-based analytics for Equities Trading Clients. You will join a Global team delivering real-time market data systems, with a focus on low-latency performance and scalable analytics. Strong KDB+/Q, Java and Python skills are required, along with Linux/UNIX expertise. The role offers hybrid work up to 2 days remote per week, a competitive base salary, and comprehensive benefits. #J-18808-Ljbffr

BlueOptima provides industry-leading objective metrics in software development using its proprietary Coding Effort Analytics, enabling large organisations to deliver better software, faster and at lower cost. Founded in 2006, BlueOptima is a profitable, independent software company whose core technology was originally devised in research carried out at Cambridge University. Headquartered in London, UK, BlueOptima operates through subsidiaries and offices across the UK, India, Mexico, the United States and Japan. Its technology is deployed by global enterprises — including Fortune 50 companies, major global banks and leading S&P constituents — to drive value from their software development activities, running complex analytics over very large source-code data sets. BlueOptima is an Equal Opportunities employer. We are seeking an Associate SDET, with experience in automating tests for scalable application components, which are remotely deployed. Our distributed solution requires highly motivated and talented engineers to understand the depth of the problem and ensure its quality is maintained to a high standard. We are looking for an individual with great attention to detail, who is genuine, committed and not only passionate about technology, but is keen to own the solution end to end and collaborate with other engineers to improve the QA process. The Belfast team at BlueOptima caters to all current and upcoming product changes in Active MultiSite, which is our distributed version control solution. The team develops and maintains sets of automated test cases across UI and API, focusing on data-centric as well as integration test cases. The team is responsible for making sure that manual efforts, and in turn the release cycles, are reduced by automating tests based on priority, along with integrating the test suites with CI/CD pipelines to ensure smooth delivery of features and products in an automated manner. the role will focus on, but not exclusively, the following: • Work with engineering and architecture to implement the plan developed for automating test cases and ensuring adequate automation coverage, • Create and maintain of test automation (both UI and API) within CI/CD pipelines, • Ensure the expected behaviour of code prior to product releases, • Increase overall coverage of automation suite, • Curate reports for the stakeholders, • Bachelor’s degree in Computer Science, Software Engineering, IT, or a related technical discipline with projects work on automation and testing (recent graduates encouraged to apply), • Experience writing code in an Object-Oriented language such as Java, • Experience with version control systems such as Git, Subversion, • Academic projects, internships, or practical experience involving test automation (preferably using Selenium and Java), • Basic understanding of testing distributed systems, • Exposure to Linux administration, command-line usage, and scripting (Shell, Bash, Python), • Knowledge of virtualization/containerization technologies (e.g., Docker), • Familiarity with test automation frameworks such as JUnit or TestNG, • Hybrid - 3 days in office, 2 remote, • 32 days holiday including bank holidays, • 12 weeks paid maternity and paternity leave, • 4 weeks per year flexible remote working from anywhere, • Annual Leave purchase (up to 10 extra days), • Work from Home Equipment allowance, • Pet friendly office, • Sponsored Learning Opportunities, • Cycle2work scheme, • Team Socials Stay connected with us on LinkedIn or keep an eye on our career page for future opportunities! #J-18808-Ljbffr

A leading global financial institution in Belfast is seeking an Applications Development Senior Programmer Analyst. This role focuses on developing ultra-low latency solutions in C++ for the Global Market Data platform. Candidates should have strong skills in systems analysis and programming on Linux, as well as experience with agile methodologies and market data systems. This is a full-time position that offers an opportunity to contribute significantly to application development and enhancements. #J-18808-Ljbffr

Data Intellect Limited is seeking a Senior kdb+ Engineer to lead technical delivery on client projects and design scalable architectures for time-series data. Your role will involve mentoring junior developers and driving innovation in kdb+ techniques. Ideal candidates have over 5 years of kdb+ development experience and a strong background in Unix/Linux environments. The position supports hybrid working, offering global opportunities with clients across major financial hubs. #J-18808-Ljbffr

Version 1 has celebrated30 yearsinbusinessand continues to be trusted by global brands to delivertechnology and transformationsolutions that drive customer success. Ourdeepexpertiseenables our customers to navigate the rapidlyevolving technology landscape. We foster strong partnerships withglobal technology leadersincluding Microsoft, AWS, Oracle, Red Hat,OutSystems, Snowflake, ensuring that our customers are provided with the highest quality solutions and services. We’rean award-winning employer reflecting how our employees are at the very heartof whatwe do: 10+ years as a Great Place to Work in Ireland & UK Best Workplace for Women in the UK & Ireland by GPTW Best Workplace for Wellbeing in the UK by GPTW We’rea corevalues drivencompany, we hire people who share our values, and we reward those who display and foster them,it’sdeeply embedded within our DNA. Invest in us andwe’llinvest in you!. Our ASPIRE Global Service Centre is the central hub of our Service Management operations. Beyond a traditional Service Desk, it stands as the central authority and shared service delivery hub, orchestrating all operational workflows, processes, procedures, and tooling. It’s a core delivery component of the Version 1 ASPIRE Managed Services offering that places AI, continuous improvement and business innovation at the heart of everything Version 1 does. With a focus on supporting self-service and automation, we utilise the best digital capabilities of the ServiceNow ITSM tooling product to provide the very best Experience to our Customers. We are seeking an experienced and results-driven Monitoring Lead who will be the product owner and subject matter expert (SME) for the Event Management tooling environment. This role is responsible for setting the strategic direction, ensuring tooling currency, driving innovation through automation and AI, and enabling smooth customer transitions and integrations. The Lead will provide technical leadership and governance across all aspects of the Event Management platform, ensuring it aligns with operational needs and service improvement goals. Key Responsibilities: • Define, create and maintain Service Offering and detailed Service Description documentation in support of pre-sales,, • Own and manage the Event Management tooling environment (e.g., Opsview, Orchestrator, integrations with Engage/ConnectWise/ServiceNow)., • Define and drive the Event Management technology roadmap, ensuring alignment with operational strategy and industry best practices., • Act as the Event Management SME, advising stakeholders on platform capabilities, enhancements, and improvements., • Ensure currency and upgrade planning for all Event Management tools, including Collector updates, orchestrator upgrades, and base OS support (e.g., CentOS to Oracle Linux)., • Lead configuration and toolset development, including template creation, check definitions, and orchestration logic., • Identify, evaluate, and drive the implementation of AI and automation opportunities to reduce noise, accelerate triage, and support proactive incident management., • Oversee and coordinate all customer transitions, ensuring monitoring environments are provisioned, deployed, and validated as per agreed scope., • Manage and support all tooling integrations, including Engage, ServiceNow, and future platform connections (e.g. server configuration and performance tuning)., • Collaborate with the Infrastructure and Platform teams to ensure alignment on architecture, Collector image development, and infrastructure management., • Work with Service Desk, L2, and L3 teams to capture requirements, support escalations, and continuously improve platform effectiveness., • Proven experience in Event Management tooling ownership, particularly in Opsview, Nagios-based tools, or similar platforms., • Strong understanding of monitoring architectures, Collector deployment, alert management, and platform integrations., • Experience leading platform upgrades and migrations across production environments., • Strong stakeholder management, with the ability to lead across technical and business-facing teams., • Hands-on skills in automation, orchestration, and system integration, ideally with exposure to ServiceNow, AWS, Azure, Ansible, and Terraform., • Track record of identifying and delivering AI/ML-driven improvements in operational environments. Why Version 1? At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability. • Share in our success with our Quarterly Performance-Related Profit Share Scheme, where employees collectively benefit from a share of our company's profits, • Strong Career Progression & mentorship coaching through our Strength in Balance & Leadership schemes with a dedicated quarterly Pathways Career Development programme, • Flexible/remote working, Version 1 is tremendously understanding of life events and people’s individual circumstances and offer flexibility to help achieve a healthy work life balance, • Financial Wellbeing initiatives including; Version 1 Pension with a 5% employee-matched contribution, Private Healthcare Cover, Life Assurance, Financial advice and an Employee Discount scheme, • Employee Wellbeing schemes including Gym Discounts, Bike to Work, Fitness classes, Mindfulness Workshops, Employee Assistance Programme and much more., • 24 days holiday allowance plus Public Holidays, enhanced maternity/paternity leave, marriage/civil partnership leave and special leave policies, • Educational assistance, incentivised certifications, and accreditations, including AWS, Microsoft, Oracle, and Red Hat, • Reward schemes including Version 1’s Annual Excellence Awards & quarterly Star Awards., • Environment, Social and Community First initiatives allow you to get involved in local fundraising and development opportunities as part of fostering our diversity, inclusion and belonging schemes. And many more exciting benefits… drop us a note to find out more. Version 1 is an equal opportunities employer We are committed to building a diverse, inclusive and respectful workplace where everyone feels valued and able to thrive. We welcome applications from people of all backgrounds, identities and lived experiences, and we value the different perspectives people bring including those shaped by disability and neurodiversity. We want every candidate to have a positive and accessible recruitment experience. If you need reasonable adjustments at any stage of the process, please contact the recruiter at [emailprotected] . We will consider all requests carefully, respectfully and confidentially. #LI-KG1 #LI-Hybrid By clicking the link above or any third-party link within this posting, you are leaving this site and going to a third-party website where the third-party website's terms and privacy policy apply #J-18808-Ljbffr

The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions. Through our people and technology, we connect clients to superior liquidity and data solutions. The Group is home to a stable of premium brands. Collectively, TP ICAP is the largest interdealer broker in the world by revenue, the number one Energy & Commodities broker in the world, the world’s leading provider of OTC data, and an award winning all-to-all trading platform. The Group operates from more than 60 offices in 27 countries. We are 5,300 people strong. We work as one to achieve our vision of being the world’s most trusted, innovative, liquidity and data solutions specialist. TP ICAP has undertaken an ambitious program of modernization and Engineering maturity over the next three years. The program is global and across all divisions and applications. There is a desire to move towards faster, safer and more automated product delivery at scale. A key part of this program is to deliver automated CI/CD pipelines, increase developer productivity, shift left many of the traditional practices and deliver more change into production more reliably. The candidate will be leading this uplift and modernization of engineering capabilities around automation of development, testing and production delivery for TP ICAPs platforms. The candidate will provide hands‑on as well as thought leadership in designing this strategy as well as executing with a combination of internal and external teams over the next two years. The candidate is able to educate and influence application development teams globally to adopt new tools and practices, and also demonstrate measurable improvements in productivity, time to market and operational resiliency. The role requires a business minded, highly collaborative, team-focussed experienced DevOps engineer with exceptional communication skills to work with developers and testers in DevOps principles. • Design DevOps modernization and adoption strategy incorporating current industry practices and technologies, • Engineer internal tooling to implement automation in software development, testing and production delivery, • Reduce manual overhead involved in software releases by fully automating delivery pipelines that includes testing, • Improve production stability and resiliency through process improvement and adoption of better observability tools, • Support application teams in adopting a consistent set of tools, practices and technology to support an agile delivery model, including automation and incremental delivery of software in test and production environments running in the cloud and on premises, • To operate at scale, engage with vendors and service providers to bring best in class industry practices, speed up internal build as well as accelerate companywide adoption of new tools and practices, • Assist and architect where appropriate solutions using containerisation and serverless technologies, • Drive automation for environment management, logging and monitoring, • To fulfil any additional / ad hoc duties as required to meet the needs of the business., • Bachelors or Masters degree in Computer Science, • Over 5-10 yrs experience in practising and leading DevOps practice in leading Financial or Technology companies, • Demonstrated experience leading and executing transformation programs involving significant uplift of DevOps and SDLC automation capabilities, • Experience delivering measurable process and productivity improvements via DevOps investments and driving a metrics driven practice of continuous improvement, • Intimately familiar with modern DevOps and SRE principles, • Deep and broad experience of AWS Cloud platform and services (Azue or GCP also considered), • Previous experience in automating and integrating Testing into CI/CD pipelines (unit, integration, smoke testing), • Previous experience working in development teams using Agile methodologies (e.g. SAFe) and practising Lean Delivery principles, • Knowledge of third-party automation tools and technologies with relative pros and cons for all stages of SDLC, CI/CD pipelines and observability, • Platforms; Windows Server, Amazon Linux, RHEL, Ubuntu, • Proficiency in at least one of the following scripting languages; Python, GO, PowerShell, Bash, Groovy, • Programming language with a working knowledge in at least one of Java, C# (.NET Framework/Core), JavaScript (Node.js), Ruby, C++, • Developer tooling; Full stack CI/CD, GitLab, Jenkins, SonarQubeNexus, • Knowledge and working experience of containerising application components including writing DockerFiles and deploying to Kubernetes, • Deep understanding of pipelines as code, • Observability concepts and tooling; Grafana, Prometheus, CloudWatch, • Band & Level – Manager, 6 #LI-MID #LI-Hybrid #NIJobs We know that the best innovation happens when diverse people with different perspectives and skills work together in an inclusive atmosphere. That's why we're building a culture where everyone plays a part in making people feel welcome, ready and willing to contribute. TP ICAP Accord - our Employee Network - is a central to this. As well as representing specific groups, TP ICAP Accord helps increase awareness, collaboration, shares best practice, and holds our firm to account for driving continuous cultural improvement. UK - City Quays 3 - Belfast Connecting clients, communities and colleagues for sustainable growth Joining TP ICAP puts you at the heart of markets that matter. You’ll have the freedom to innovate and act on your initiative. We’ll train you and build your abilities in your specialist area, so that you can become an expert in your field. And all within a connected network that’s there to set you up for success. TP ICAP Group is a collection of premium brands each with a distinct, client-focused offering. Underpinning and connecting these client-facing brands is the financial security, operational strength and know-how we have as a Group. Connections are at the heart of what we do. We combine our people’s know-how with the latest technology to improve price discovery, trade execution and liquidity flow. Connections create strength. Through them, we help our clients to manage risk, realise investment strategies and expand the scope for growth. And connections act as a catalyst. Sparking richer solutions for our clients to break new ground, modernising markets for future performance, and creating dynamic careers for our people. Our capacity to connect builds trust, supports communities and gives us the power to anticipate and respond to change, whatever direction the world takes. It’s what makes TP ICAP a mainstay in the global markets, now and in the future. TP ICAP. We connect. #J-18808-Ljbffr

Experience with Java NIO components like Channels Buffers and Selectors is expected Expert knowledge of FIX protocol Market Connectivity and Low latency programming is a must Very strong in Java and Spring Boot based application development Experience with middle layer messaging services like JMS MQ EMS or Kafka Strong at RDBMS concepts and experience with Oracle Sybase or MS SQL Cloud experience with Micro Services and Containerization is a big plus Test driven development and to adhere with firms min development standards Experience with Unix or Linux scripting Solid experience with CICD tools Agile Development and Software life cycle Basic experience with MS office platform tools like Work PPT and Excel is necessary Bachelors degreeUniversity degree or equivalent experience Worked with projects in financial services domain Excellent analytical communication and interpersonal skills Ability to work independently take ownership trouble shoot and multitask Mandatory Skills: Java, Microservices, SpringBoot #J-18808-Ljbffr

Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently. Join us in our pursuit to defend data and protect people. At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values: Bold in how we dream and innovate Responsive to feedback, challenges and opportunities Accountable for results and best in class outcomes Visionary in future focused problem-solving Exceptional in execution and impact As a Network Operations Centre (NOC) Engineer, you will be part of an international team that monitors and maintains more than 14,000 servers and 250 Network devices, spanning multiple Data Centres, across the Globe. NOC Engineers manage Incidents, and troubleshoot and resolve, both routine and complex Network, Hardware, and Operating System issues in a timely and efficient manner. This ensures Proofpoint maintains high levels of Production system Availability & Uptime for our Customers. Given the global nature of our Business, our NOC Engineers work in a rotating shift pattern, ensuring 24x7 coverage for the Business. This role will primarily support the hours of 06:00-19:00 GMT/BST. • Incident Management and Workload Execution, • Coordinate with Senior team members to identify broader patterns or trends, • Assist in maintaining and improving Operational Standards & Documentation; including monitoring quality, runbook/knowledge article and general procedure/process improvements, • Modernization and Continuous Service Improvement (CSI), • Use of prescribed AI tooling to gain efficiencies in Operational practices, implement positive tooling or procedural changes and monitoring refinement activities., • Strong Technical knowledge, predominantly with Linux OS, to inform diagnosis & resolution of Incidents on critical customer facing systems, • Major Incident Management skillset, including creation and documentation of Major Incident detail and actions taken on Production systems, facilitation of investigation and resolution, communication of situational updates to the business., • Basic technical understanding of concepts including core Network (Switching and Routing) principles, and Cloud Computing principles, • Proficiency with monitoring of internal Production systems, leveraging Proofpoint’s suite of monitoring tooling, • Desirable Certifications (not mandatory, but are preferable): CompTIA certifications; A+, Network+, Cloud+, Linux+ or Security+ OS Vendor Specific certifications including LPIC, LFCS, RHCSA or MCSA, MSCE or more advanced certification types Cloud Vendor certifications ITIL v. 3/4/5 At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us: • Competitive compensation, • Comprehensive benefits, • Career success on your terms, • Flexible work environment, • Annual wellness and community outreach days, • Always on recognition for your contributions, • Global collaboration and networking opportunities Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone. We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to . Proofpoint is an equal opportunity employer, we hire without consideration to race, religion, creed, color, national origin, age, gender, sexual orientation, marital status, veteran status or disability. We’re driven by a mission to stay ahead of bad actors and safeguard the digital world. Join us in our pursuit to defend data and protect people. Proofpoint is the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on Proofpoint to protect their organizations. We believe that work is simply better when you’re surrounded by people who inspire you—who share ideas, cheer you on, and genuinely want to see you succeed. That’s why we offer social circles, sponsored networks, and connection points across teams and time zones—to help you find your people, build your community, and thrive together. We take ownership, move fast, and hold ourselves accountable - because that’s what it takes to stay ahead. And we do it together, winning as one. Be empowered to reach your full potential through meaningful challenges and personalized support—designed around you and your goals. Whether you're growing as a leader or leveling up from great to exceptional as an individual contributor, we’re here to help you get there. #J-18808-Ljbffr

Data Intellect is building a new, specialist Trade Surveillance teaminBelfast, forming a key part of a rapidly expanding, high-growth practice area within the organisation. This team operates in a consulting-led model, delivering complex, mission-critical solutions for worldleading global investment banks, hedge funds, regulators and exchanges. As part of this, you will have the opportunity to work on international client engagements across New York, London, and APAC, gaining exposure to some of the most sophisticated financial technology environments in the world, with potential opportunities to travel. You will receive comprehensive training on a specialised trade surveillance product stack, enabling you to quickly develop deep expertise while working directly on client systems. The role combines dataengineering depth with client-facing responsibility, requiring individuals who can both solve complex technical challenges and operate effectively within enterprise stakeholder environments. As a Senior DevOps Engineer, you will act as a trusted technical consultant, bridging client infrastructure teams and internal engineering, and taking ownership of platform implementation, optimisation, and ongoing support. This is an ideal opportunity for someone motivated by problem-solving, continuous learning, and accelerated career progression within a fast-scaling, globally focused practice. • Act as the technical lead between clients and engineering teams, delivering enterprise platform solutions, • Deploy, manage, and optimise containerised applications using Kubernetes and Helm, • Design scalable, secure infrastructure across on-prem and AWS environments using IaC tools, • Build and maintain CI/CD pipelines, driving automation and release consistency, • Administer Kubernetes clusters, managing orchestration, scaling, and performance, • Implement monitoring and observability (Prometheus, Grafana, ELK) to ensure system reliability, • Troubleshoot complex infrastructure, Kubernetes, and database issues with clear root cause analysis, • Configure AWS networking and implement secure access (SSO, SSL/TLS, access controls), • Strong experience with Kubernetes, Docker, and Helm, • Solid AWS expertise and Infrastructure as Code (Terraform, CloudFormation, Ansible), • Proven CI/CD and automation experience, • Strong Linux administration and troubleshooting skills, • Experience with monitoring/logging tools (Prometheus, Grafana, ELK) and root cause analysis, • Knowledge of storage (NFS/EFS), databases (PostgreSQL), and web servers (Nginx, Apache, Tomcat), • Experience with SSO and security (SAML, OIDC, Azure AD, Okta, Keycloak), • Scripting skills in Python and/or Bash, • Client-focused with strong communication and problem-solving skills with the ability to break down complex systems and translate technical issues for different audiences, • Comfortable working independently in client environments, • Proactive, adaptable and motivated to learn, • Financial services or capital markets experience, • Exposure to trade surveillance or regtech platforms, • Experience in low-latency or high-throughput environments, • Join a new, strategically important team in Belfast, • Work on complex, high-impact systems in a collaborative, consulting-led environment, • Be part of a high-growth practice with strong career progression opportunities, • Receive full training on a specialised, in-demand product stack, • Opportunities for international travel across New York, London, and APAC, • Work with leading global investment banks and hedge funds We’re proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Accommodations are available throughout the assessment and selection process. Apply now. #J-18808-Ljbffr

Telefónica Tech UK&I is seeking an experienced Level 3 Linux Engineer to support, maintain, and enhance critical Linux environments. You will troubleshoot complex issues and lead the delivery of high-impact projects to ensure reliability and performance. You will collaborate with cross-functional teams to optimize security, scalability, and efficiency of Linux-based systems, while guiding and mentoring junior engineers and aligning with industry best practices. #J-18808-Ljbffr

OCHO is partnering with a Belfast based technology scaleup building body worn camera hardware and cloud software platforms used by organisations operating in high trust, high responsibility environments. This is a hands on Firmware Engineer role focused on an embedded Linux camera platform built on an Ambarella SoC. You will work across the full firmware stack, from low level driver interaction through to device to cloud communication and feature delivery. A key part of this role is the transfer of firmware ownership from an external manufacturing partner into the Belfast engineering team. You will help stabilise the platform, improve code quality, and enable the next stage of product evolution including edge AI capabilities. • Work across the full firmware stack on an embedded Linux camera platform., • Support the transfer of firmware ownership from external vendors into the internal engineering team., • Develop and maintain firmware for an Ambarella based camera device., • Build and improve device to cloud functionality including streaming and remote control features., • Optimise battery life and power efficiency across the platform., • Debug hardware using lab equipment such as oscilloscopes and power analysers., • Improve the structure, maintainability, and quality of an inherited firmware codebase., • Collaborate with hardware, cloud, and manufacturing partners across the wider product organisation., • Degree in Electronics Engineering, Computer Engineering, or a related discipline., • Minimum four years experience in embedded firmware or embedded Linux development., • Strong C and C++ development experience for embedded systems., • Hands on embedded Linux experience including build systems, drivers, networking, and debugging., • Comfort working close to hardware including UART, I2C, SPI, and power management., • Understanding of performance and power optimisation on embedded platforms., • Experience working across a full firmware stack rather than a single layer., • Comfort operating in a scale up environment with ownership and autonomy., • Experience with Ambarella SoCs or similar camera focused platforms., • Experience working on video devices, cameras, or media pipelines., • Experience with streaming protocols and device to cloud communication., • Experience designing or optimising low power embedded systems., • Exposure to edge AI on embedded devices., • Experience deploying or optimising ML models on device., • Experience improving inherited firmware codebases or vendor handover scenarios., • Discretionary bonus and employee share option programme., • Generous annual leave allowance., • Learning and development opportunities., • Private health insurance., • Cycle to work scheme plus home and technology schemes. For a confidential conversation, reach out directly to Ryan Quinn on LinkedIn. #J-18808-Ljbffr

Version 1 has celebrated30 yearsinbusinessand continues to be trusted by global brands to delivertechnology and transformationsolutions that drive customer success. Ourdeepexpertiseenables our customers to navigate the rapidlyevolving technology landscape. We foster strong partnerships withglobal technology leadersincluding Microsoft, AWS, Oracle, Red Hat,OutSystems, Snowflake, ensuring that our customers are provided with the highest quality solutions and services. We'rean award-winning employer reflecting how our employees are at the very heartof whatwe do: 10+ years as a Great Place to Work in Ireland & UK Best Workplace for Women in the UK & Ireland by GPTW Best Workplace for Wellbeing in the UK by GPTW We'rea corevalues drivencompany, we hire people who share our values, and we reward those who display and foster them,it'sdeeply embedded within our DNA. Invest in us andwe'llinvest in you!. Our ASPIRE Global Service Centre is the central hub of our Service Management operations. Beyond a traditional Service Desk, it stands as the central authority and shared service delivery hub, orchestrating all operational workflows, processes, procedures, and tooling. It's a core delivery component of the Version 1 ASPIRE Managed Services offering that places AI, continuous improvement and business innovation at the heart of everything Version 1 does. With a focus on supporting self-service and automation, we utilise the best digital capabilities of the ServiceNow ITSM tooling product to provide the very best Experience to our Customers. We are seeking an experienced and results-driven Monitoring Lead who will be the product owner and subject matter expert (SME) for the Event Management tooling environment. This role is responsible for setting the strategic direction, ensuring tooling currency, driving innovation through automation and AI, and enabling smooth customer transitions and integrations. The Lead will provide technical leadership and governance across all aspects of the Event Management platform, ensuring it aligns with operational needs and service improvement goals. Key Responsibilities: • Define, create and maintain Service Offering and detailed Service Description documentation in support of pre-sales,, • Own and manage the Event Management tooling environment (e.g., Opsview, Orchestrator, integrations with Engage/ConnectWise/ServiceNow)., • Define and drive the Event Management technology roadmap, ensuring alignment with operational strategy and industry best practices., • Act as the Event Management SME, advising stakeholders on platform capabilities, enhancements, and improvements., • Ensure currency and upgrade planning for all Event Management tools, including Collector updates, orchestrator upgrades, and base OS support (e.g., CentOS to Oracle Linux)., • Lead configuration and toolset development, including template creation, check definitions, and orchestration logic., • Identify, evaluate, and drive the implementation of AI and automation opportunities to reduce noise, accelerate triage, and support proactive incident management., • Oversee and coordinate all customer transitions, ensuring monitoring environments are provisioned, deployed, and validated as per agreed scope., • Manage and support all tooling integrations, including Engage, ServiceNow, and future platform connections (e.g. server configuration and performance tuning)., • Collaborate with the Infrastructure and Platform teams to ensure alignment on architecture, Collector image development, and infrastructure management., • Work with Service Desk, L2, and L3 teams to capture requirements, support escalations, and continuously improve platform effectiveness., • Proven experience in Event Management tooling ownership, particularly in Opsview, Nagios-based tools, or similar platforms., • Strong understanding of monitoring architectures, Collector deployment, alert management, and platform integrations., • Experience leading platform upgrades and migrations across production environments., • Strong stakeholder management, with the ability to lead across technical and business-facing teams., • Hands-on skills in automation, orchestration, and system integration, ideally with exposure to ServiceNow, AWS, Azure, Ansible, and Terraform., • Track record of identifying and delivering AI/ML-driven improvements in operational environments. Why Version 1? At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability. • Share in our success with our Quarterly Performance-Related Profit Share Scheme, where employees collectively benefit from a share of our company's profits, • Strong Career Progression & mentorship coaching through our Strength in Balance & Leadership schemes with a dedicated quarterly Pathways Career Development programme, • Flexible/remote working, Version 1 is tremendously understanding of life events and people’s individual circumstances and offer flexibility to help achieve a healthy work life balance, • Financial Wellbeing initiatives including; Version 1 Pension with a 5% employee-matched contribution, Private Healthcare Cover, Life Assurance, Financial advice and an Employee Discount scheme, • Employee Wellbeing schemes including Gym Discounts, Bike to Work, Fitness classes, Mindfulness Workshops, Employee Assistance Programme and much more., • 24 days holiday allowance plus Public Holidays, enhanced maternity/paternity leave, marriage/civil partnership leave and special leave policies, • Educational assistance, incentivised certifications, and accreditations, including AWS, Microsoft, Oracle, and Red Hat, • Reward schemes including Version 1's Annual Excellence Awards & quarterly Star Awards., • Environment, Social and Community First initiatives allow you to get involved in local fundraising and development opportunities as part of fostering our diversity, inclusion and belonging schemes. And many more exciting benefits... drop us a note to find out more. Version 1 is an equal opportunities employer We are committed to building a diverse, inclusive and respectful workplace where everyone feels valued and able to thrive. We welcome applications from people of all backgrounds, identities and lived experiences, and we value the different perspectives people bring including those shaped by disability and neurodiversity. We want every candidate to have a positive and accessible recruitment experience. If you need reasonable adjustments at any stage of the process, please contact the recruiter at [emailprotected] . We will consider all requests carefully, respectfully and confidentially. #LI-KG1 #LI-Hybrid By clicking the link above or any third-party link within this posting, you are leaving this site and going to a third-party website where the third-party website's terms and privacy policy apply #J-18808-Ljbffr

The Applications Development Technology Lead Analyst (KDB Lead Developer) is a senior-level technical leadership role responsible for architecting, establishing, and implementing high-performance, low-latency tick and time-series data systems. This role leads the design, development, optimization, and support of real-time and historical KDB+/q architectures supporting Electronic Trading, Market Data, Quantitative Research, Risk, and Analytics. The ideal candidate will serve as the subject matter expert (SME) in KDB+/q, guiding technical direction, mentoring engineers, and collaborating closely with business stakeholders, quantitative researchers, traders, and infrastructure teams. Key Responsibilities Architecture, Design & Technical Leadership • Lead the end-to-end design, implementation, and maintenance of scalable, fault-tolerant KDB+ architectures, including real-time tickerplants (TP), Real-Time Databases (RDB), Historical Databases (HDB), Real-Time Subscribers (RTS), Intraday Databases (IDB), and Gateway (GW) query routers., • Define and enforce best practices for q code development, schema design, memory management, data partitioning/splaying, query optimization, and indexing/attributes (p#, g#, s#, u#)., • Serve as the primary technical authority for KDB+ platform engineering, ensuring architectural alignment with enterprise technology blueprints, cloud adoption strategies, and compliance standards., • Partner with Quantitative Analysts, Trading Desks, and Risk Managers to translate complex quantitative models and business requirements into highly optimized time-series calculations and analytical engines. Development & Integration • Design and build high-throughput feedhandlers, APIs, and microservices interfacing KDB+ with upstream messaging fabrics (e.g., Kafka, Solace, LBM/29West, ZeroMQ) and downstream consumer platforms., • Develop high-performance C/C++ or Python shared libraries (embedPy, PyQ, C API) for real-time analytics, machine learning integration, or proprietary calculation engines., • Oversee the migration, integration, or hybrid deployment of KDB+ on-premises and in cloud environments (e.g., AWS, GCP, KX Insights). Performance Engineering & Stability • Conduct deep profiling, capacity planning, and latency/memory optimization across high-volume market and transactional data streams., • Implement robust Disaster Recovery (DR), business continuity (COB), high-availability (HA), and automated failover mechanisms across distributed multi-region environments., • Develop and institutionalize automated testing frameworks (unit, regression, and load testing) and modern CI/CD release pipelines for KDB+ code and data schemas. People Leadership, Governance & Controls • Lead, mentor, and coach mid-level and junior KDB developers; conduct rigorous code reviews and foster a culture of technical excellence., • Supervise work allocation, sprint deliverables, and release management across distributed agile development pods., • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm’s reputation and safeguarding the firm, its clients, and assets by driving compliance with applicable laws, rules, and regulations, adhering to Policy, applying sound ethical judgment, and managing control issues with transparency. Qualifications & Skill Set Core Technical Experience • Proven hands-on experience in application software development with a specialized focus on KDB+/q in a high-volume, low-latency financial trading or market data environment., • Deep KDB+/q Mastery:, • Expert proficiency in writing idiomatic, vectorized q code and advanced complex event processing (CEP)., • Proven track record designing and tuning full-stack KDB+ Tick architectures (Tickerplant, Chained Tickerplant, RDB, HDB, CEP, Gateway/Query Routers)., • Advanced knowledge of IPC, multi-threading (-s), worker processes, memory allocators, compression algorithms, and partitioned database maintenance., • Languages & Frameworks:, • Strong proficiency in Python (including data science stack: Pandas, NumPy, and integration tools like embedPy, PyKX, or qPython)., • Solid understanding of Java interface programming with KDB+ and platform, • Familiarity with enterprise messaging middleware (Kafka, Solace, Tibco EMS/LBM)., • Operating Systems & Infrastructure:, • Expert-level proficiency in Linux/Unix operating systems, shell scripting (Bash), and system-level performance tuning (CPU affinity, NUMA, I/O schedulers, NVMe/SSD storage optimization)., • DevOps, Tooling & Modernization:, • Familiarity with CI/CD pipelines (Git, Teckton, Harness, GitHub, Artifactory etc)., • Knowledge of containerization and orchestration (Docker, Kubernetes/OpenShift) as applied to KDB+ workloads is a strong plus. Business & Domain Knowledge • Strong knowledge of Capital Markets, Electronic Trading, and Financial Instruments (Equities, FX, Fixed Income, Rates, Commodities, or Derivatives)., • Familiarity with Market Data protocols (L1/L2/L3 order books, FIX, ITCH, OUCH, BBO/NBBO) and quantitative analytics (TCA, VWAP/TWAP, volatility surfaces, PnL, pre/post-trade risk). Leadership & Soft Skills • Proven leadership skills with demonstrated experience managing project workstreams and coaching technical teams., • Excellent problem-solving, interpretive thinking, and analytical capabilities under time-sensitive constraints., • Strong written and verbal communication skills with the ability to articulate complex technical concepts to non-technical stakeholders, traders, and senior management. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. What we’ll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: • 27 days annual leave (plus bank holidays), • A discretional annual performance related bonus, • Private Medical Care & Life Insurance, • Employee Assistance Program, • Pension Plan, • Paid Parental Leave, • Special discounts for employees, family, and friends, • Access to an array of learning and development resources Visit our Global Benefits page to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. #LI-AP2 ------------------------------------------------------ Technology ------------------------------------------------------ Applications Development ------------------------------------------------------ Full time ------------------------------------------------------ Please see the requirements listed above. ------------------------------------------------------ For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster. #J-18808-Ljbffr

We are looking for a Senior Penetration Tester with CHECK to join our growing team. You will play a critical role in delivering high‑quality penetration testing engagements across infrastructure, cloud, web, and mobile applications for a diverse range of clients, including software, fintech, manufacturing, engineering, legal, and public sector organisations. This is a hands‑on role where your expertise will help identify and remediate security weaknesses, while contributing to the development of our methodologies and mentoring junior testers. If you’re passionate about offensive security and want to work on varied, challenging projects in a supportive environment, we’d love to hear from you. • CHECK Team Member (CTM) status, • Current UK Security Clearance, • At least 2+ years of penetration testing experience, • Strong experience with web application and network penetration testing methodologies, • In‑depth knowledge of operating systems (Linux, Windows, Active Directory), • Familiarity with cloud environments and ability to perform cloud security reviews, • Proficiency with tools such as BurpSuite Pro, Nmap, Nessus, and Kali Linux, • Knowledge of scripting languages (Python, Shell, etc.), • CHECK Team Lead (CTL) status (Infrastructure or Applications), • Relevant certifications (OSCP, Cyber Scheme), • Experience with Hack the Box or Capture the Flag simulations, • Recognition that matters: A discretionary annual performance bonus that rewards your impact and contribution to our success, • Flexibility built in: Flexible working arrangements and summer hours, • Financial security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance, • Health & wellbeing: Employee Assistance Programme, mental health support, cycle‑to‑work scheme, and regular social events, • Time to recharge: 35 days holiday, enhanced maternity pay, and family‑first policies, • Learning never stops: From courses to certifications, we’ll invest in your development, • Community & culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil truly inclusive and connected #J-18808-Ljbffr

Secure. Connected. Intelligent. Symphony is an AI-powered communication and technology company fueled by interconnected platforms: messaging, voice, directory and analytics. Our end-to-end encrypted technologies enable over 1,400 institutions to accelerate AI impact, prioritize data security, navigate complex regulatory compliance and optimize business interactions. As a Site Reliability Engineer, you will work with Agile engineering teams to provide productioninsight into running and operating software at-scale in a globally distributed and highly available cloud based system. You will guide the team to consider resiliency, scalability and operability implications in the choices they make during the development cycle to help foster an ownership in productionmentality ("You build it, you own it"). You will also own and develop our platform by implementing and championing GitOps principles. You will play a hands-on role helping the team meet technical, operational, schedule, and business requirements. The ideal candidate will be a systems problem solver with a passion for crafting products that deliver incredible customer experiences, have deep experience with infrastructure, operational automation, data driven metrics collection, modern platform management, and a true desire to automate it rather than do it repeatedly. • Design, build, and maintain highly scalable and reliable infrastructure using Infrastructure-as-Code (IaC)., • Manage and optimize Kubernetes clusters, leveraging Helm and ArgoCD for efficient application deployment and lifecycle management., • Administer and troubleshoot Linux-based systems, ensuring their performance, security, and availability., • Work extensively with both GCP and AWS services, architecting and managing cloud-native solutions., • Implement robust observability practices, including monitoring, logging and alerting to proactively identify and resolve issues, using Splunk and Grafana., • Develop and maintain automation tools using languages such as Python and Go to streamline operations and improve efficiency., • Provide production support, responding to incidents and outages, and participating in a 24/7 on-call rotation., • Troubleshoot complex networking issues and optimize network performance., • Engage in communications across all areas of the organization., • Strong experience with IaC., • Required: Terraform, • Nice to have: Terragrunt and Ansible, • Deep understanding of Kubernetes and Helm., • Extensive experience with Linux administration and troubleshooting., • Hands-on experience with GCP and AWS services and cloud-native architectures., • Experience in implementing observability solutions., • Solid understanding of networking concepts and protocols., • Ability to work both independently and collaboratively., • Ability to lead and work on projects., • Ability to multitask and adapt quickly to changing priorities., • Excellent communication and problem-solving skills. We have an international team, so good communication skills are essential., • Willingness to participate in a 24/7 on-call rotation. This role offers a challenging and rewarding opportunity to work on cutting-edge technologies and make a significant impact on the reliability and scalability of our systems. • Salary Range: £ 60,000 - 70,000 base salary per year, • Bonus Plan, • Regional specific competitive benefits, • Build your own Benefits (BYOB) perk, • Local events, team building, and development opportunities We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. #J-18808-Ljbffr

Level 3 SOC Analyst Hybrid – with 2 days in our Belfast office – HillView House As an experienced Senior Cyber Security Operations Analyst, you will be responsible for handing security incidents received/escalated from the CSOC Analyst (Tier 1 or Tier 2) and perform a business impact analysis on the security incident. You will leverage a deep understanding of information security technologies, you will aid in triaging threat intelligence from multiple sources and add contextual information to the security incident, perform additional analysis and based on the business impact will recommend the response actions and escalation path. You will be guided by Threat Intelligence which is actionable information (e.g. IOCs/TTPs), conduct threat hunting activities; leveraging and analyzing sources of information as available through the SIEM, in addition identify and investigate potential suspicious activity as well as helping organizations identify, isolate and contain security issues. You will support the initial implementation and management of security related technologies, including (but not limited to) IBM QRadar, Microsoft Sentinel, MDE, MDI and Defender for Cloud. Successful candidate must hold - SC-200 Certification Successful candidate must be eligible for SC clearance Customer First, Always; Fearless Innovation; Achieve Together; Everyone is Valued. • Oversee completion of day-to-day checklist(s), including log review, management report scheduling & running, alert analysis, and escalation follow up, • Remain current on cyber security trends and intelligence (open source and commercial) in order to guide the security analysis & identification capabilities of the CSOC team, • Provide oversight, guidance and mentoring to L2 & L3 analysts, and fulfil SOC Manager responsibilities in the absence of the SOC Manager, • Oversee a number of analysts as part of a virtual team of L1 and L2 analysts, including objectives setting, performance management / reviews, training & development, and BAU activities including shift cover etc., • Perform advanced event and incident analysis, including baseline establishment and trend analysis., • Support on-call arrangements as part of a Rota, to support L1 Analysts working out of hours, • Support Major Incident Response activity, from a Protective Monitoring perspective, including supporting teams in identification, containment, and remediation of security related threat., • Provide timely advice and guidance on the response action plans for events and incidents based on incident type and severity., • Identify, create and implement improvements to procedures and processes, with the SOC Manager’s approval., • Identify opportunities for SOC and client SIEM platform configuration improvements, use case development, monitoring rule creation, tuning & optimization., • Stakeholder and Client Reporting, and engagement, • Assist in architectural design to facilitate the onboarding of new information systems, including the assessment, parsing, onboarding of log sources, and use case and rule development., • Level 3 SOC Analyst / Senior Cyber Security and security operations experience, • Experience of onboarding, tuning, reporting and configuring SIEM solutions, • Experience of threat intelligence, • Leadership and mentoring experience and skills, • Understanding of low-level concepts including operating systems and networking, • Commercial experience in Penetration Testing and / or Security Monitoring, • Understanding of networking and infrastructure design, • Knowledge/experience of one or more System administration (Linux, Windows, Mac), • Self‑motivated individual with flexible approach to working., • Excellent interpersonal skills with the ability to explain technical problems to non‑technical business stakeholders at all levels., • Strong written and oral communication skills, • Active or ability to obtain SC clearance, • IT Certifications, including Network+, Security+ Protective Monitoring / SOC Certifications, including CySA+ Cyber Security Certifications, including CISMP, CISSP, • Experience with various Microsoft Technologies, including Microsoft Defender for Endpoint, Identity and Cloud Experience with SIEM platforms, including IBM QRadar, Microsoft Sentinel and LogRhythm, • In-depth experience with Microsoft Sentinel, including use case and rule development, workbook / playbook creation, KQL & Logic Apps / SOAR, • Experience in managing Microsoft Sentinel as an MSSP, including Lighthouse, and management and multi-customer environments using DevOps Customer First, Always: We prioritise our customers by delivering effective cyber security monitoring, incident response, and expert guidance that protects their services and supports their success. Fearless Innovation: We embrace continuous improvement by identifying new threats, enhancing detection capabilities, and driving innovative security solutions that strengthen our services. Achieve Together: We collaborate across teams, share knowledge, and support one another to deliver outstanding security outcomes and achieve our collective goals. Everyone is Valued: We foster an inclusive and supportive environment where every colleague is respected, empowered to develop, and encouraged to contribute their unique perspectives. Capita is a dynamic leader in consulting and digital services, helping some of the UK’s most recognised organisations transform and thrive. We use cutting‑edge technology and fearless innovation to create smarter, more efficient solutions that make a real difference. Our work spans diverse sectors—government, healthcare, education, and finance—offering you the chance to contribute to projects that impact millions of lives. At Capita, you’ll be part of a collaborative, forward‑thinking team that values creativity, growth, and inclusion. We’re committed to your development and success, providing opportunities to learn, progress, and shape better outcomes for customers and communities. • Hybrid – 2 days office location Belfast HillView House, • Competitive salary, • 23 days’ holiday, rising to 27 (pro rata) – plus the option to buy more after qualifying period, • Paid volunteering day with a charity of your choice, • Generous family leave policies – including 15 weeks’ fully paid maternity, adoption, and shared parental leave, • Cycle2Work scheme, pension, life assurance, and more We are committed to building a workforce that reflects the diversity of the communities we serve. As part of our strategic goals, we are focused on accelerating gender and ethnic representation in leadership roles. We warmly encourage applications from women and individuals from Black, Asian, and other ethnic minority backgrounds. We’re an equal opportunity and Disability Confident employer, which means we recruit and develop people based on their merit and passion. We’re committed to providing an inclusive, barrier‑free recruitment process and working environment for everyone. If you need the job description or application form in an alternative format (such as large print or audio), or if you’d like to discuss other changes or support you might need going forward, please email and we’ll get back to you. For more information about equal opportunities and process adjustments, please visit the Capita Careers website. • Location: Belfast , United Kingdom, • Time Type: Full time, • Contract Type: Permanent Capita is an AI‑enabled business services partner. We work with organisations across the public and private sectors, helping them deliver better, more efficient services. Every day, millions of people rely on services we support across central and local government and regulated industries. We combine technology, data and AI with the expertise and judgement of our people to help clients solve complex challenges and deliver better outcomes for the people and communities they serve. #J-18808-Ljbffr

Arqit Belfast, Northern Ireland, United Kingdom Senior Python Developer – Arqit Arqit is a global cybersecurity company delivering quantum-safe encryption to secure data and communications for enterprises, governments and critical national infrastructure (CNI). Powered by advanced symmetric key cryptography, Arqit offers scalable encryption that is resilient to quantum threats, ensuring robust data protection across sectors such as telecoms, defence and finance. Arqit has recently welcomed the talent from Ampliphae, combining their encryption intelligence products with Arqit’s quantum‑encryption technology and global reach to provide a comprehensive proposition that identifies and mitigates cyber risk exposure from both current and quantum threats. Department: Software Engineering Location: Belfast • Developing software for our Encryption Intelligence technology, working under the guidance of software architects and senior colleagues., • Transforming architectural models into component designs ready to be incrementally developed, tested and deployed., • Collaborating closely with software, automation and DevOps engineers to implement, review, test and deploy full‑stack software changes., • Working extensively with Python, with opportunities to train on Rust and AngularJS., • Analyzing the metrics of deployment changes, ensuring high resiliency and performance, resolving issues as they arise., • Fixing issues found internally and by our customers., • Actively participating in Agile development activities and rituals, supporting the growth of the team and its members., • Being open to receiving feedback and willing to offer constructive feedback and support to others., • Working closely with the Product Management team to help further refine requirements., • Significant commercial experience developing complex enterprise software and services., • Demonstrable experience building horizontally scalable, mission‑critical enterprise software and services, preferably in a startup environment., • Experience with cloud service development (public/hybrid/private cloud PaaS or SaaS)., • Extensive experience of Python programming and best practice., • Demonstrable passion for software development through self‑learning, personal projects, competitions etc., • Experience with triage, RCA and fix for software issues within a distributed system., • Competence in multiple programming languages., • Experience with database development (SQL and NoSQL)., • Experience with design patterns, refactoring, OO design and related areas., • Strong analytical, problem‑solving and organizational skills., • Demonstrated accountability for results while working with high autonomy., • The right to live and work in the UK without restriction., • Experience working in cyber security., • Experience in a start‑up/scale‑up., • Agile or Kanban experience., • Experience consuming cloud services from major providers (Azure, AWS, Google)., • Both Linux and Windows development experience., • Rust, AngularJS, C++ knowledge., • CI/CD deployment experience (AzureDevOps, Helm, Flux)., • Experience mentoring and training junior staff., • 25 days paid holiday, • 8 bank holidays, • Pension, • Private Medical Insurance, • Life Insurance, • Income Protection, • Employee Assistance Programme, • Coaching, • Parental Leave, • Personal Travel Insurance, • Subsidised Season Ticket Loan, • RSU Equity Package, • Bonus Scheme, • Ride to Work Scheme, • Benefit Hub Mid‑Senior level Full‑time Engineering and Information Technology #J-18808-Ljbffr

The Global Fixed Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. This role is within the FiTP team in Belfast, United Kingdom. The successful individual will ideally have a good knowledge of Fixed Income products and experience in building software systems to handle the capture and processing of high volume of such trades. In this fast paced environment you must be able to prioritize tasks, work within deadlines, taking a pragmatic and thoughtful approach, paying close attention to details. You will need to employ strong communication skills, necessary to effectively produce client solutions. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. Knowledge/Experience: • Bachelor’s degree with a relevant major (Computer Science, Information Technology, Mathematics, Engineering, or similar), • Proven experience in design and development of high performance, low-latency, multi-threaded applications., • Extensive hands-on development experience in Java., • Demonstrated ability to learn new business concepts and technologies., • Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements Experience required • Solid understanding of software development fundamentals including data structures, design patterns and object-orientated programming., • Proficiency in core Java demonstrable success in developing multi-threaded applications and expert level knowledge in data structures, algorithms, collections, and error handling., • Spring Framework (and Spring Boot): This is almost non-negotiable for enterprise Java development. Expertise in Spring Boot for rapid application development, Spring MVC for web applications, Spring Data JPA for persistence, and Spring Security for authentication / authorization., • Microservices Architecture: Understanding how to design, develop, and deploy independent, loosely coupled services, which is a common pattern for applications running on ECS., • RESTful APIs: Designing, developing, and consuming RESTful web services using Java and Spring Boot., • Build Tools: Maven or Gradle for project management and build automation., • Proven ability to develop clean, testable code., • Understanding of relational database concepts and knowledge in SQL., • Experience with Jira, Git/Bitbucket, Gradle and CI/CD tools, e.g. TeamCity and UrbanCode Deploy., • Experience with Linux/Unix., • Knowledge on cloud technologies e.g. Artifactory, Docker and OpenShift., • Knowledge of fixed income products, customer and broker market platforms and trading protocols desirable. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. What we’ll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: • 27 days annual leave (plus bank holidays), • A discretional annual performance related bonus, • Private Medical Care & Life Insurance, • Employee Assistance Program, • Pension Plan, • Paid Parental Leave, • Special discounts for employees, family, and friends, • Access to an array of learning and development resources Visit ourGlobal Benefitspage to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Technology Applications Development Full time Please see the requirements listed above. For complementary skills, please see above and/or contact the recruiter. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster. #J-18808-Ljbffr