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Help build and operate reliable, scalable and secure digital services that support UK businesses and trade. Department for Business, Innovation, Science and Trade (BIST), in partnership with Inspire People, is seeking a Senior Backend Engineer. Whilst the team primarily develops in Python, we welcome applications from experienced backend developers with Java, C#, Go or similar object-oriented prog... \n \n \n \n \n \n \n \n \n ZIPC1_UKTJ

You will require excellent technical and customer facing skills with the ability to explain complex technical issues to senior customer stakeholders in your project or our Service Delivery Managers. Essential: SAP Basis skills including: ABAP and Java experienceManaging TransportsKernel patching, ho

Version 1 is seeking a skilled Java Developer to join their growing team in delivering enterprise-grade distributed systems and API solutions. You will work alongside Azure Cloud and Apigee platforms, with opportunities to learn from industry experts and contribute to cutting-edge digital transformation projects. The role emphasizes collaboration, rapid delivery, and adopting a broad tech stack, including front-end and back-end integration work, while offering flexible/remote working #J-18808-Ljbffr

Citi is seeking a Senior Java Developer to join the Risk Data Team in a hybrid Belfast setting. You will build high‑impact software, design robust microservices, and own critical data pipelines that support risk management across the organization. Join a globally distributed team focused on clean code, scalable solutions, and mentorship, with opportunities to influence architectures and improve outcomes while benefiting from a flexible hybrid model. #J-18808-Ljbffr

Upwind is a next-generation Cloud Security Platform that leverages runtime context to identify and prioritize critical risks, providing precise insights and efficient cloud security management. Unlike traditional tools, Upwind uses runtime data proactively for risk prioritization and posture insights, ensuring teams focus on what truly matters. With industry-leading efficiency and eBPF-powered sensors, Upwind delivers comprehensive capabilities, including agentless cloud posture discovery, real-time threat protection, and integrated API security. From misconfigurations to malware defense, Upwind ensures end-to-end, cost-effective cloud infrastructure protection. At Upwind, you’ll have the opportunity to think creatively, explore new ideas, and use your skills to make a meaningful impact on our growth. We are looking for an experienced Software Engineer to join our great Backend Engineering team. The team faces complex engineering issues on a daily basis, both solving new challenges and constantly improving the existing solutions. We work with all major cloud providers (AWS, GCP, Azure) and use cutting-edge technologies such as Kubernetes, Docker, Neo4j, ElasticSearch, Redis, TimescaleDB, RabbitMQ, and more. • Responsible for the entire lifecycle of various short-life projects, from initial design and development to deployment, monitoring and maintenance in a production environment, • Performing reliability and performance analysis on Golang / Java based applications, • Contributing to technical and architectural designs, performing capacity planning, defining SLOs and working with other teams to implement, • Conducting design and code reviews as part of a wider engineering group, • Interfacing with other teams (e.g. Frontend, DevOps, Product) to deliver best-in-class features We operate on a hybrid working model, with three days per week in our impressive Custom House Square offices (Tuesdays, Wednesdays and Thursdays) and the remaining days working remotely. • Bachelor of Science in Computer Science/Software Engineering or related field, • 1+ years of experience with Backend Engineering in a high-level programming language (e.g. ideally Golang and/or Java), • Experience with cloud platforms and products (e.g. AWS, GCP and Azure), • Experience implementing data-intensive systems (databases, event systems, messaging systems, etc), • Experience with continuous integration and deployment (CI/CD), • Experience with microservices based architecture #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

A global technology-driven financial services organisation is seeking an experienced Java Engineer in Belfast. This hands-on role focuses on designing and enhancing low-latency connectivity services for clients and internal systems. Candidates should have strong Java experience, exposure to electronic trading environments, and a strong understanding of the FIX Protocol. The position offers up to £48k, hybrid working, and benefits including a bonus and pension. #J-18808-Ljbffr

TD Securities is seeking a Java Engineer to join the Compliance & Supervision Technology team. The role focuses on building regulatory compliant, scalable solutions across Global Markets with a strong emphasis on security and resiliency. You will collaborate with Compliance, Risk, Data, and Business stakeholders to deliver enterprise-grade, auditable systems using Java, Spring Boot, and cloud-native patterns. The role requires agile delivery and cross-time zone collaboration. #J-18808-Ljbffr

Every question matters, every pathway, direction, thought process and conversation. Because every challenge makes us stronger, more knowledgeable, more determined and more valuable to our clients. We’re not big on egos and we’re not for the faint hearted. We stand for camaraderie, collaboration and change. Welcome to Data Intellect. We build AI systems that go into production. Our clients are Tier 1 banks and hedge funds with real data volumes and real regulatory pressure and they hire us because we can put working software in front of them quickly. This role is for an engineer who has already built agentic AI systems and wants to do more. You will design and build agents that call tools, query client data, reason over it and hand back something a user can act on. Some of that runs against cloud model APIs, some of it runs on local models inside a client's network because the data cannot leave the building. You need to be comfortable with both. You will work directly with client engineers and stakeholders, as an AI specialist. What you will be doing • Building and shipping LLM-backed agents: tool use, MCP servers, retrieval, orchestration between specialist agents, evaluation and guardrails, • Working across cloud model APIs and locally hosted models, and making sensible calls about which fits a given client's constraints, • Using AI-assisted development tools as a core part of how you work, and having a view on where they help and where they get in the way, • Turning a vague client problem into a scoped proof of concept, then into something maintainable, • Explaining your design decisions to people who are technical and non-technical people., • Building reusable accelerators so the next engagement starts further along than the last one, • Demonstrable experience building AI agents that use LLMs, cloud hosted or local. We will want to talk in detail about something you have built, why you built it that wayand what broke, • Fluent use of AI-assisted coding tools (Claude Code, Cursor, Copilot or similar) in day to day development, • Software engineering fundamentals: version control, testing, code review, CI/CD and an understanding of what makes code someone else can maintain, • Strong written and spoken communication. You can write a clear client-facing document and hold your own in a technical conversation with a client, • Able to work with minimal supervision. You take a problem, ask the right questions earlyand come back with progress rather than waiting to be unblocked, • Genuine interest in where agentic AI is going, evidenced by what you read, build or contribute to outside of what your last employer asked of you, • Claude Certified Architect (Foundations or Professional), or an equivalent credential from another vendor. If you have not done one, we will support you through it, • Background in financial services, market data or another regulated, data-heavy domain, • Experience with MCP server development, • Experience with time series or analytical databases (kdb+/KDB-X, ClickHouse, Oracle), • Python, Java and TypeScript, • Experience deploying models on-premise or in a locked-down cloud environment Who does well here • People who are honest about what they do not know., • People who put in the work. Consultancy has peaksand clients notice who shows up during them, • People who can hold a relationship as well as a codebase. Much of our repeat work comes from a client trusting a specific engineer., • People who collaborate well and share what they learn, rather than keeping the clever bit to themselves. What’s on offer: • Direct involvement in shaping our AI practice rather than slotting into someone else's, • Exposure to senior stakeholders at recognisable clients from early on, • Work alongside a supportive team and across our global offices, • Continuous L&D opportunities, training and certifications, • A modern, flexible working environment, • Competitive salary and benefits, • The chance to make a real impact on how Data Intellect grows, • Healthcare cover - Benenden Health, including 24/7 GP & Mental Health Helpline., • Generous referral scheme - we love to see referrals coming through and referring a friend means cash for you!, • Regular social events, prizes and giveaways-our talented social committee work hard all year round to provide exciting events across all regions and they’re open to suggestions. A little background on DI Simply put – we turn big data problems into smart data solutions At our core, Data Intellect is a data and technology consultancy firm. Our key area of expertise is financial and capital markets technology solutions. However, the utility of these solutions allow us to apply fintech data expertise to other industries such as smart energy and healthcare. This proprietary offering is complemented by a wealth of experience in data engineering, electronic trading systems, data capture applications, regulatory and compliance systems and middle and back-office enterprise web solutions. Fair employment and equal opportunities Data Intellect is an equal opportunity employer, committed to inclusion and diversity. If you have a disability, accommodations are available on request throughout the assessment and selection processes. Ready to accept the challenge? #J-18808-Ljbffr

• Belfast, Hybrid (2 days per week in office), • AI Services team, working closely with Architecture, Security and QA, • Salary: DOE, • Build the secure AWS-based platform powering AI products across the business, • Hands-on engineering with real influence over how the capability is built Our client is a large, global organisation investing in a new generation of technology capability - transforming customer and employee experience and reshaping how software is designed, built, tested and delivered. They're scaling secure, responsible AI use at enterprise scale and building the platforms and specialist capabilities to support it. As Agentic AI Platform Engineer, you'll help build the secure AWS-based platform that other teams across the business use for AI products - taking ideas from design through to production, and making sure the platform stays reliable, easy to use and genuinely useful for real business work. This is a hands-on role: building services, improving quality, supporting teams that use the platform, and feeding what you learn back into the roadmap, while shaping engineering decisions early in the capability's life. • Build and maintain the AWS-based platform used across the business for AI products, • Take ideas from design into reliable, production-ready services, • Apply the platform to real use cases and support it once live, • Solve practical problems around reliability, quality and cost, • Create reusable engineering patterns for other teams to build on, • Partner closely with QA, Product, Architecture and Production Support Essential • 4+ years' experience in software engineering, with significant microservice-driven Java experience, • Strong AWS experience (ECS/Fargate, Lambda, API Gateway, Step Functions, CloudFormation, CloudWatch), • Experience with AWS AI services, particularly Amazon Bedrock, • Experience with Infrastructure as Code, CI/CD and DevOps in an Agile environment, • Experience with AI-driven engineering tools (e.g. GitHub Copilot, Claude Code, Cursor, Amazon Q/Kiro), • Right to work in Northern Ireland (no sponsorship available) Desirable • AWS certification, including AI/ML or Bedrock-specific training, • Hands-on experience with agent frameworks or orchestration tooling (Bedrock AgentCore, Strands, LangGraph, MCP), • Experience building or contributing to an internal developer platform, • Event-driven architecture/messaging experience (Kafka, AWS MSK), • Familiarity with Python or TypeScript, • Experience delivering across time zones with US-based teams Competitive salary DOE, hybrid working (2 days per week in Belfast), and a genuine opportunity to shape a new AI platform capability from an early stage. #J-18808-Ljbffr

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!About this team: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!In this role you will: ● 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. Core Competencies: ● 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. Nice to Haves: ● 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. Perks and Benefits: ● 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 Company Culture: 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 About UsThe 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. #J-18808-Ljbffr

Java DeveloperApply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 26996628Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Job OverviewEngineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. We are seeking a Java Developer for our Global Market Access EMEA development team.Sitting within the Equities cash business, the main function of the team is to build and maintain the market access gateway layer that provides connections to the EMEA trading exchanges to facilitate electronic execution trading.The gateway is used to translate internal Citi trading messages to the format expected by the exchange in order to successfully send and receive orders and execution messages.This is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in co-ordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. Responsibilities: Utilise knowledge of applications development procedures and concepts, and basic knowledge of other technical areas to identify and define necessary system enhancements, including using script tools and analysing/interpreting code Consult with users, clients, and other technology groups on issues, and recommend programming solutions, install, and support customer exposure systems Apply fundamental knowledge of programming languages for design specifications. Analyse applications to identify vulnerabilities and security issues, as well as conduct testing and debugging Serve as advisor or coach to new or lower-level analysts Identify problems, analyse information, and make evaluative judgements to recommend and implement solutions Resolve issues by identifying and selecting solutions through the applications of acquired technical experience and guided by precedents Has the ability to operate with a limited level of direct supervision. Can exercise independence of judgement and autonomy. Acts as SME to senior stakeholders and /or other team members.* Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency.Skills and Experience Previous commercial experience of software development using Java and Python, ideally gained within the Financial Services (or related) industry. Experience of applications support and maintenance. Able to demonstrate clear and concise written and verbal communication Strong problem-solving and decision-making skills* Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirementsDesirable Skills: Experience in containerisation Experience in DevOps - lightspeed, GitHub, Docker Unix and Shell scripting Knowledge of low-latency coding principlesEducation:* Bachelor’s degree/University degree or equivalent experienceBy 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 resourcesVisit 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-MR7 #J-18808-Ljbffr

At Allstate, great things happen when our people work together to protect families and their belongings from life’s uncertainties. And for more than 90 years, our innovative drive has kept us a step ahead of our customers’ evolving needs. From advocating for seat belts, air bags and graduated driving laws, to being an industry leader in pricing sophistication, telematics, and, more recently, device and identity protection. This role sits within Allstate Cyber Operations & Platforms as part of a set of Digital Product Teams responsible for building and operating a cohesive, scalable Security Operations platform ecosystem. This ecosystem spans: • Agentic Cyber Platforms (ACP): Operationalizing AI as a core cyber capability through shared platforms, orchestration patterns, and governance-by-design., • Security Data & Observability (SD&O): Engineering and managing the Security Operations Data Plane, enabling high-fidelity telemetry, analytics, and AI-ready data., • Tooling & Platform (T&P): Ensuring security tooling is integrated, governed, and aligned as part of a unified platform rather than disconnected solutions. Together, these capabilities enable secure, scalable, and intelligence-driven cyber operations by design. The Platform Consultant defines and drives architecture patterns, integration standards, and ecosystem strategy across AI platforms, security data, and tooling. This role ensures the environment evolves as a coherent, reusable, and governed platform ecosystem, enabling safe, scalable adoption through well-defined “paved roads.” You will translate operational intent into enterprise-scale platform design, ensuring interoperability between AI systems, data platforms, and tooling while minimizing fragmentation and maximizing reuse. • Define architecture, design patterns, and integration standards across AI, data, and tooling., • Establish APIs, data models, security controls, and observability requirements., • Ensure high-quality, structured data for AI (lineage, consistency, readiness)., • Set standards for safe AI use (explainability, auditability, controlled actions)., • Design unified integration across tools and platforms., • Ensure tools produce consistent, high-quality, AI-ready data., • Build scalable, reusable solutions as the default (“paved roads”)., • Drive standardization, reduce duplication, and guide adoption., • Lead build vs. buy vs. integrate decisions., • Ensure solutions are scalable, secure, and governance-driven., • Partner across teams (ACP, SD&O, T&P) for platform alignment., • Influence teams to drive simplification, reuse, and consistency., • All applicants must demonstrate they have a legal right to work in the UK for employment at Allstate. Allstate is not providing sponsorship for this vacancy., • A minimum of 5 years software engineering experience in at least 3 programming paradigms to include:, • Object-oriented (Java & Javascript required and at least one other language), • Procedural / systems (e.g. Go, Rust, C), • Functional (e.g. F#, Elixir, Clojure, Haskell), • Experience using modern development tools (e.g., IntelliJ or VS Code, Git/GitHub, Spring Boot) and designing robust RESTful APIs, • A minimum of 3 years hands on expertise in architecting and delivering large scale distributed systems, such as cloud native microservices on Docker/Kubernetes, deployed on modern cloud platforms (AWS, Azure, or equivalent), ensuring scalability, high availability, and performance, • Demonstrated success as a high impact technical advisor to multiple engineering teams, with proven ability to influence architecture direction and mentor engineers in best practices with proven leadership responsibilities., • Expert level knowledge of Agile/XP and DevOps methodologies, including paired programming, test driven development (TDD), and CI/CD automation, with a track record of using these practices to accelerate delivery and improve quality, • Experience with agentic AI platforms, governance, and safe-action design, • Familiarity with security operations ecosystems and analyst workflows, • Experience with:, • Telemetry and observability systems, • Data lineage, metadata, and data quality frameworks, • Canonical data models and analytics-ready datasets, • Background in tooling integration and platform standardization (golden paths/paved roads), • Experience aligning AI, data, and tooling strategies into a unified platform vision, • This job does not have supervisory duties. Job Posting End Date: Monday 5th October (11:59pm) Architectural Patterns, Cloud Platform, DevOps, Ecosystems, Microservices Architecture Allstate NI is proud to be Allstate’s European Digital Centre of Excellence, a hub for innovation and engineering excellence. We’re recent winners of Best Place to Work in IT (100+ employees) and Best Use of Cloud Services at the Belfast Telegraph IT Awards, and we’ve been recognised for our community and sustainability impact with Platinum in the Northern Ireland Environmental Benchmarking Survey. We’re a product-driven, cloud-first organisation delivering real outcomes through modern technology, a digital product-centric talent model, and a culture rooted in engineering excellence. Our teams work in cross-functional structures, guided by an outcome-based delivery approach that accelerates speed, agility, and value. We also invest in you. At Allstate NI, your career growth matters. You’ll have access to our Continuous Learning Hub, designed to support skills development and professional advancement through tailored learning paths, certifications, and mentoring opportunities. Whether you’re deepening technical expertise or exploring leadership roles, we provide the tools and support to help you thrive. • Corporate bonus scheme, • Pension scheme, • Annual performance-related pay reviews, • Life assurance and income protection, • Flexible working options, • Hybrid working, • Private medical and dental insurance, • Access to an employee assistance programme, • Discounted gym membership, • Two paid volunteering days each year, • Cycle to work scheme Be part of a high-performing, socially responsible organisation where your work has purpose, and your growth is supported every step of the way. #J-18808-Ljbffr

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective of these roles is to assist/lead in applications systems development, analysis and programming activities. • Experience held in Core Java (all editions), • Knowledge of end-to-end lifecycle of an application, • For more senior level roles, we would require leadership experience Do you think you could add value at Citi? If so please apply and we will carry out an assessment on the Technology you have experience in. If you are successful we will add you to a relevant role that seeks this skillset. By joining Citi Belfast, 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 discretionary 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. 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

Job ID: 101275091776Posted: 2026-09-28Location: Belfast, Northern Ireland, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiCiti is a world-leading global bank.We have approximately 200 million customer accounts and a presence in more than 160 countries and juri

Job SummaryWe are seeking a motivated Front-end Web Developer to join our development team. The successful candidate will work alongside experienced developers to build, test, and maintain web applications using React on the frontend and Java on the backend. Collaborate with designers, developers, a

Job ID: 101350289744Posted: 2026-09-30Location: Belfast, Northern Ireland, United KingdomCategory: Technology, Applications Development, ProfessionalCompany: CitiSenior Low Latency Java Engineer - Equities Electronic- Execution (eTrading) Engineer the future of global finance. Role OverviewCiti's E

Company Description We believe in the power of ingenuity to build a positive human future. Company Description We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. PA. Bringing Ingenuity to Life. Job Description We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? 🤔 • Join our Digital & Data team working alongside product, design and a wide range of other experts and cross-disciplinary teams to bring ideas to life through innovative software solutions., • Grow a flexible and unique career within a trust-based, inclusive environment that values excellence, innovation, and curiosity. You have the option to progress with us on a technical career track. No need to go onto the Partner career track if this doesn’t align with what you want to do., • Hybrid working - our approach is to be in the office or on client site a minimum of 2 days per week., • Work on a broad variety of projects and tech stacks for clients across seven sectors - no project is ever the same, • Join other experts within our supportive and collaborative tech community through knowledge-sharing and peer-level support, coaching and mentoring, • Deepen your expertise through our a culture of learning and growth – you’ll have budget to take courses (technical and non-technical training), plus gain certifications Our tech stack 🚀 While we advocate for using the right tech for the right task, you can expect to work with the following technologies to ensure scalable, high-performance applications: • Programming Languages: JavaScript, Java, .Net, • Cloud platforms: AWS, GCP, Azure, • Other technologies: CI/CD, TDD What You Can Expect 🌱 • Work to agile best practices and cross-functionally with multiple teams and stakeholders. You’ll be using your technical skills to problem solve with our clients, as well as working on internal projects, • Steer technical teams through complex challenges and guide our clients towards successful digital transformations, • Provide mentorship to engineers and create an environment of continuous improvement, • Live in-person whiteboarding sessions to problem solve as a team, alongside asynchronous communication on Teams, • Hybrid working with the team on client site or in our office a minimum of two days per week. However, the actual time you spend and where you spend it will vary by role or assignment, including up to 5 days per week on a client site., • An environment that deeply cares about its values Qualifications Essential requirements ✅ Even if you don’t meet every requirement below, feel free to still apply as we are often hiring for similar roles which your background might be better suited to. • Proven capability in shaping the end-to-end software delivery lifecycle, driving improvements across development, testing, deployment, and operational phases., • Ability to implement infrastructure-as-code, CI/CD, and efficient release management strategies., • Enhance system performance using load testing, caching, and optimizing database queries and application logic for better scalability and response times., • Expertise in modern engineering standards such as TDD, contract testing, and secure coding, as well as architectural patterns like event-driven architecture and platform migration., • You thrive in problem-solving and analytical thinking to create long-term solutions, • You enjoy collaborating with multiple stakeholders in a fast-paced environment Additional Information Assessment process ⚖️ • Quick video call with one of our Tech Recruiters – to discuss your application, the role and PA, • Round 1: Either a competency or technical interview (60 mins), • Round 2: Either a competency or technical interview, whichever you didn’t do at first round (60 mins), • Final round 🎉: Meeting with a PA leader - a discussion around your client-centricity (45 mins) Life At PA encompasses our peoples' experience at PA. It's about how we enrich peoples’ working lives by giving them access to unique people and growth opportunities and purpose led meaningful work. Our purpose guides how we work with our clients and our teams, and support our communities, to deliver insight and impact, solving the world’s most complex challenges. We're focused on building a workplace that values human difference and diverse mindsets, and a culture of inclusion and equality that unlocks the potential in our people so everyone can be their best self. Find out more about Life at PA here. We are dedicated to supporting the physical, emotional, social and financial well-being of our people. Check out some of our extensive benefits: • Health and lifestyle perks accompanying private healthcare for you and your family, • 25 days annual leave (plus a bonus half day on Christmas Eve) with the opportunity to buy 5 additional days, • Generous company pension scheme, • Opportunity to get involved with community and charity-based initiatives, • Annual performance-based bonus, • PA share ownership, • Tax efficient benefits (cycle to work, give as you earn) We’re committed to advancing equality. We recruit, retain, reward and develop our people based solely on their abilities and contributions and without reference to their age, background, disability, genetic information, parental or family status, religion or belief, race, ethnicity, nationality, sex, sexual orientation, gender identity (or expression), political belief veteran status, or other by any other range of human difference brought about by identity and experience. We welcome applications from underrepresented groups. Adjustments or accommodations - Should you need any adjustments or accommodations to the recruitment process, at either application or interview, please contact us on #J-18808-Ljbffr

Senior Software Engineer (Java Or Python) - VPApplylocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26969354Senior Software Engineer (Java Or Python)Engineer the future of global finance.At Citi, our Tech team doesn’t just support finance

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: Best Places to Work 2026, 2025, 2024, 2023 - Presented by BuiltIn WealthTech of the Year 2025 - Presented by US FinTech Awards The World’s Top 250 Fintech Companies 2024 - Presented by CNBC The Senior SOC Analyst will be responsible for day-to-day security threats, vulnerability management, analysis, and response. You will manage security incidents and review security alerts, determine if the security events are false positives, true positives, or false negatives, while working with incident responders on known or suspected security threats. The Senior SOC Analyst will work on log analysis, vulnerabilities and emerging threats, threat hunting and incident response that adhere to best practices and recognized control frameworks while mentoring analysts and being their escalation point. You will help provide security metrics, threat landscape updates and emerging trends. This role requires both deep analytical skills for threat detection and response, as well as technical engineering abilities to build, enhance, and automate security tools and processes. The Senior SOC Analyst will lead complex security investigations, develop automation solutions, and contribute to the strategic improvement of our security posture. • Responsible for working in Security Operation Center (SOC) team environment., • Monitor, analyse, investigate security incidents and events using various tools and technologies including SIEM, UEBA, Threat Intel and EDR., • Perform security incident and event correlation, analysis, triage using information gathered from a variety of sources within the enterprise., • Generate reports, dashboards, and presentations from security technologies., • Point of conduct for Tier 1 & Tier 2 escalations for in-depth investigations of events., • Able to participate in an on-call rotation., • Provide analysis of trending security data from a large number of heterogeneous security devices across different layers., • Provide Incident Response (IR) support when analysis confirms an actionable incident., • Communicate and collaborate with stakeholders, including internal customers and senior management to provide updates on security incidents and to ensure proper resolution., • Investigate, document, and report on information security threats and emerging trends., • Integrate technologies and share information with SOC analysts and external teams., • Participate in internal projects and initiatives to increase SOC efficiency and improve SOC tooling., • Improve and challenge existing processes and procedures in an agile and fast-moving environment., • Maintain and update security documentation, including incident reports and KB articles., • Provide technical expertise, team member mentoring and advice to other departments. The permanent right to live and work in the United Kingdom - this job is based in Belfast, Northern Ireland. Bachelor’s degree in a related field (Security, Forensics, Cyber Security, or Computer Science is preferred) or equivalent industry related experience. At least 5 years' experience working within an information security / cyber security role. Desirable | Proven experience as a security analyst, incident handler/responder, security engineer, or penetration tester. Knowledge of security methodologies, processes (i.e., Cyber Kill Chain/Diamond Models, and the MITRE ATT&CK/D3FEND framework). Knowledge of technical security solutions (such as but not limited to firewalls, SIEM, NIDS/NIPS/HIDS/HIPS, EDR, DLP, SOAR, proxies, network behavioural analytics, orchestration, automation and cloud security). Deep knowledge of TCP/IP, UDP, DNS, FTP, SSH, SSL/TLS and HTTP Protocols, network analysis, and network/security applications and email security. Good knowledge of common malware threats and attack methodologies. Good knowledge of scripting languages and programming languages (PowerShell, Python, Bash, .NET, Ruby,Java, C, etc.) Experience with Infrastructure as Code. Desirable Professional Certifications:GCIA, GCIH, GCFE, GCFA, Security+, CCNA CyberOps, OSCP, GPEN, GWAPT, CEH, CySA+. Accountable for the successful completion of multiple, individual projects simultaneously. Communicate effectively by contributing significantly to the development and delivery of a variety of written and visual documents for diverse audiences. Manage change and demonstrate adaptability by adjusting priorities or processes and approaching as needs dictate. Work independently as a team representative of Information Security as well as showing excellent teamwork skills. Ability to develop thorough documentation and operational playbooks, in addition, to suggest alert enhancements to improve detection capability. Ability to mentor and support team members to advance the security program. Fundamental knowledge of network and system technologies and practices. Desire for continual learning of new technologies and developing knowledge / skills. The Information Security Team is composed of independent thinkers and doers who can positively impact our clients and shape Apex Fintech Solutions business and security posture. The Information Security Team strives to build and maintain a collaborative environment and engaging work—guided by Open and Honest Communication; Teamwork and Collaboration; Involving Everyone; Leaders Who Serve; and Personal Accountability. We offer 28 days annual leave plus 10 NI national holidays. Pension matched up to 7% Private health insurance for medical and dental. Life Insurance. Great work/life balance and flexible working hours. Monthly catered lunches. Unlimited drinks and snacks. Charitable matching gift program. 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. Our Rewards 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. At Apex, we stand for efficiency and transparency. In every office, you’ll find passionate, committed, dedicated teams driven to find smart solutions to solve our clients’ toughest challenges. We are passionate about our employees, providing the benefits and perks that elevate you, reward you, and help you give back. We provide great flexibility, a collaborative, open work space, and real potential to grow with the firm. #J-18808-Ljbffr

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. We are seeking a Java Developer for our Global Market Access EMEA development team. Sitting within the Equities cash business, the main function of the team is to build and maintain the market access gateway layer that provides connections to the EMEA trading exchanges to facilitate electronic execution trading. The gateway is used to translate internal Citi trading messages to the format expected by the exchange in order to successfully send and receive orders and execution messages. This is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in co-ordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. • Utilise knowledge of applications development procedures and concepts, and basic knowledge of other technical areas to identify and define necessary system enhancements, including using script tools and analysing/interpreting code, • Consult with users, clients, and other technology groups on issues, and recommend programming solutions, install, and support customer exposure systems, • Apply fundamental knowledge of programming languages for design specifications., • Analyse applications to identify vulnerabilities and security issues, as well as conduct testing and debugging, • Serve as advisor or coach to new or lower-level analysts, • Identify problems, analyse information, and make evaluative judgements to recommend and implement solutions, • Resolve issues by identifying and selecting solutions through the applications of acquired technical experience and guided by precedents, • Has the ability to operate with a limited level of direct supervision., • Can exercise independence of judgement and autonomy., • Acts as SME to senior stakeholders and /or other team members., • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behaviour, conduct and business practices, and escalating, managing and reporting control issues with transparency., • Previous commercial experience of software development using Java and Python, ideally gained within the Financial Services (or related) industry., • Experience of applications support and maintenance., • Able to demonstrate clear and concise written and verbal communication, • Strong problem-solving and decision-making skills, • Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements, • Experience in containerisation, • Experience in DevOps - lightspeed, GitHub, Docker, • Unix and Shell scripting, • Knowledge of low-latency coding principles, • Bachelor’s degree/University degree or equivalent experience 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 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. #J-18808-Ljbffr

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. We are hiring Experienced Backend Java Developers at Citi Belfast. The role ranges from Assistant Vice President to Senior Vice President and focuses on contributing to, and in some cases leading, application systems development, analysis, and programming activities. • Develop and maintain backend Java applications., • Analyze business requirements and translate them into technical solutions., • Design, implement, and optimize backend services and APIs., • Collaborate with cross‑functional teams including product, data, and quality assurance., • Participate in code reviews, system design discussions, and agile ceremonies., • Proficient in Core Java (all editions)., • Strong understanding of the end‑to‑end application lifecycle., • Experience with enterprise development practices and tools., • For more senior levels, proven leadership and mentoring experience., • Hybrid working model (up to 2 days working from home per week)., • Competitive base salary, reviewed annually., • 27 days annual leave plus bank holidays., • Discretionary annual performance‑related bonus., • Private medical care and life insurance., • Employee assistance program., • Pension plan., • Paid parental leave., • Special discounts for employees, family, and friends., • Access to learning and development resources. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to 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. #J-18808-Ljbffr

Citi Belfast is hiring Experienced Backend Java Developers to contribute to, and in some cases lead, the design and development of core backend services. The role spans Assistant Vice President to Senior Vice President levels, with a hybrid working model (up to 2 days from home per week), a competit

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

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: Best Places to Work 2026, 2025, 2024, 2023 - Presented by BuiltIn WealthTech of the Year 2025 - Presented by US FinTech Awards The World’s Top 250 Fintech Companies 2024 - Presented by CNBC Position Overview: 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. Workflow Orchestration: 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. Script Parameterization: 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. Deployment Management: Build and maintain tooling that tracks build versions across environments (development, QA, UAT, production) and automates deployment and promotion between them. Client Implementations: Support new client onboarding by developing and adapting custom scripts, configuration, and automation on the application side. Run-Day Operations: Manage processing pipelines and run-day operations. Troubleshoot batch failures, identify root cause, and replace repeat manual intervention with durable automated fixes. Cloud Automation: Build and operate automation on Amazon Web Services (AWS) using native CLIs, SDKs, and infrastructure-as-code practices. Monitoring and Notifications: Build alerting and notification automation (Slack, email) so failures and stalls surface before they affect clients. Process Improvement: 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. Documentation: Maintain comprehensive documentation of workflows, runbooks, deployment procedures, and automation standards. Collaboration: 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., • Nice to Have 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. • market-leading salary with an annual bonus, • 28 days of annual leave plus 10 Northern Ireland national holidays, • a training and development budget, • a pension matched up to 7%, • private health insurance for medical, dental, and optical care, • life insurance, • flexible working hours, • parental leavea modern city center office, • a hybrid work schedule that allows for greater flexibility by partially working from home, • monthly catered lunches, • unlimited drinks and snacks, • hackathon events, • poker tournaments, • 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. At Apex, we aim to enable frictionless investing for everyone. Help us in our mission to democratize finance. In every office, you’ll find passionate, committed, dedicated teams driven to find smart solutions to solve our clients’ toughest challenges. We are passionate about our employees, providing the benefits and perks that elevate you, reward you, and help you give back. We provide great flexibility, a collaborative, open work space, and real potential to grow with the firm. #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

Experienced Java DevelopersApplyremote type: Hybridlocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26978652*Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.*Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective of these roles is to assist/lead in applications systems development, analysis and programming activities.We are seeking candidates who have the following Skillset: Experience held in Core Java (all editions) Knowledge of end to end lifecycle of an application* For more senior level roles, we would require leadership experienceDo you think you could add value at Citi?If so please apply and we will carry out an assessment on the Technology you have experience in. If you are successful we will add you to a relevant role that seeks this skillset.What we’ll provide youBy joining Citi Belfast, 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 resourcesVisit 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.------------------------------------------------------## Job Family Group:Technology------------------------------------------------------## Job Family:Applications Development------------------------------------------------------## Time Type:Full time------------------------------------------------------## Most Relevant SkillsPlease see the requirements listed above.------------------------------------------------------## Other Relevant SkillsFor 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

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

Participate in live in‑person whiteboarding sessions and asynchronous communication on Teams. Java, Python, Scala, Spark, SQL. Proficiency in Java, Python, Scala, Spark and SQL.

You will work with React on the frontend and Java on the backend to build, test, and maintain web applications. You'll join a team delivering complex fintech solutions with modern tooling, participate in code reviews, and contribute to end-to-end development while adopting best practices. Citi is se

BT Group is seeking a Software Engineering Specialist to lead the Consumer Billing Engineering team in Belfast. The role centers on modernising billing platforms, delivering cloud-native microservices, and guiding architectural direction across enterprise systems. The position requires deep Java/Spring Boot expertise, AWS/EKS deployment, and Oracle DB knowledge, with a focus on reliability, scalability, and operational excellence. #J-18808-Ljbffr

Join Kainos and Shape the Future At Kainos, we’re problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether we’re transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, you’ll be part of a diverse, ambitious team that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. As a Senior Software Engineer (Senior Associate) in Kainos, you’ll be responsible for developing high quality solutions which delight our customers and impact the lives of users worldwide. It’s a fast-paced environment so it is important for you to make sound, reasoned decisions. You’ll do this whilst learning about new technologies and approaches, with talented colleagues that will help you to learn, develop and grow as you, in turn, mentor those around you. • Must have demonstrable Java and AWS experience, • Proficient in designing, building, testing and maintaining modern software applications, • Experience of applying development best practices and patterns in relation to security, scalability and performance, • Contributing to technical decisions and direction in a collaborative team environment, including architecture, estimation, product planning, user story/requirement creation., • Experience of design and development across multiple layers of an application, • Mentoring junior team members, • Good communication skills, with the ability to communicate issues to technical and non-technical people., • Experience of Continuous Integration and Continuous Delivery techniques, • Experience of debugging and troubleshooting live applications, • Active participation in knowledge sharing activities, both within the team and with wider non-technical audiences, • Experience of multiple programming languages and data storage technologies, • Experience of balancing technical decisions with user needs and commercial constraints, • Knowledge of public cloud platforms, such as AWS and Azure, including SaaS and PaaS offerings, • Experience in one or more Java BPMN 2.0 implementations. Activiti is preferred but experience in Camunda, Flowable or jBPM will also be considered. At Kainos, we believe in the power of diversity, equity and inclusion. We are committed to building a team that is as diverse as the world we live in, where everyone is valued, respected, and given an equal chance to thrive. We actively seek out talented people from all backgrounds, regardless of age, race, ethnicity, gender, sexual orientation, religion, disability, or any other characteristic that makes them who they are. We also believe every candidate deserves a level playing field. Our friendly talent acquisition team is here to support you every step of the way, so if you require any accommodations or adjustments, we encourage you to reach out. We understand that everyone's journey is different, and by having a private conversation we can ensure that our recruitment process is tailored to your needs. #J-18808-Ljbffr

Lead Software Engineer – Global FinTech Location: Belfast (Hybrid Working) A global FinTech organisation is seeking an experienced Lead Software Engineer to join its growing engineering function in Belfast. This is a senior, high-impact role offering the opportunity to shape architecture, lead technical teams, and deliver mission-critical systems operating at scale. The hiring manager is actively reviewing profiles and keen to engage with candidates who bring strong technical leadership, deep engineering experience, and a proven ability to design and deliver complex platforms. As Lead Software Engineer, you will take ownership of technical direction while remaining hands-on where it matters. You’ll work closely with product, delivery and engineering teams to design scalable, secure solutions within a regulated, high-volume environment. • Leading the design and evolution of large-scale, high-performance software systems, • Providing technical leadership across architecture, development, and delivery, • Guiding engineers through complex problem-solving and technical change, • Collaborating cross-functionally with Product, QA, DevOps and Agile teams, • Mentoring and developing engineers through coaching, reviews and knowledge sharing, • Driving platform resilience, performance optimisation and long-term scalability, • A degree in Computer Science, Electrical Engineering, or a related discipline, • 10+ years’ professional experience in software engineering, • A strong track record working on mission-critical, high-volume applications, • Proven ability to lead technical teams, influence architecture decisions, and mentor engineers, • Significant experience in system design, architecture at scale, and performance optimisation, • Strong Java and Object-Oriented Programming expertise, • Experience with modern development practices and cloud-native architectures, • Exposure to technologies such as Docker, Kubernetes, cloud platforms, and modern front-end frameworks is beneficial, • Comfortable working in Agile/Scrum delivery environments, • Opportunity to lead complex, high-impact systems at global scale, • Strong benefits package including pension, healthcare, enhanced leave and development support - base salary 90k plus, • A role with genuine influence over technical direction and engineering culture If you’re a senior engineer ready to take ownership of architecture, leadership and delivery in a global FinTech environment, we’d love to speak with you. Apply now or get in touch for a confidential discussion. • Mid-Senior level, • Full-time, • Information Technology, • Financial Services, Technology, Information and Media, and Information Services #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. • 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., • 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)., • 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., • 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., • 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., • 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)., • 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. 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. 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

Citi is hiring for a Java developer role within its technology wing.

C# Developer with (Python or Java). We are seeking a highly skilled strong expertise in C#, along with Java or Python, and a good understanding of financial systems. The ideal candidate will be adaptable linguistically, comfortable working primarily within the C# but open to leveraging Java, Python,

Citi in Belfast seeks a high‑performing Equities Technology Low Latency Developer with Java or C++.You will contribute to the Global Market Data platform, implement ultra‑low‑latency features, and work with traders and production teams to diagnose real‑world issues.The role offers hybrid wor

Strong proficiency in Python or Java, SQL, and data pipeline frameworks (e.

Apply to be part of building the future of global finance.

Job Function: Software Engineering. Mentor team members in microservices engineering, Java/Spring Boot development, AWS/EKS operations, Oracle DB integration, and modern engineering practice. AI technologies within Software Engineering and operational environments.

Citi in Belfast is seeking a Java Developer to join the Global Market Access team and help build the market access gateway that supports electronic trading.You will design, implement and maintain mission-critical services, ensuring resilience, low latency and strong security in a hybrid work model w

Equities Technology (Low Latency Developer) - JAVA OR C++Apply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 26980463Citi is a world-leading global bank.We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide.We

This is an active engineering leadership position where you will guide a team of developers, write clean, production-grade code, design system components, and troubleshoot complex data processing issues. In this role, you will be directly responsible for leading the technical design, development, an

Belfast is seeking a Test Automation Engineer to design and maintain automated tests for front- and back-end systems, using Playwright for frontend and Java/TypeScript for backend. You will integrate tests into GitLab CI pipelines and support Docker-based test environments. The role requires collabo

Citi in Belfast is seeking a software developer to join the Global Market Data platform team.You will contribute to low-latency market data infrastructure and collaborate with traders and production support to diagnose real-world issues.Requirements include strong Java or C++ experience, microservic

Ensure integration between vendor platforms, proprietary systems, and enterprise data services. Embed auditability, traceability, entitlement controls, evidencing capabilities, and monitoring into system designs.

Kainos is seeking a Senior Software Engineer to develop high quality solutions that delight users worldwide.You’ll work in a fast-paced, collaborative environment, making sound technical decisions and mentoring others as you learn new technologies.You’ll contribute to architecture, design, testi