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Principal Java Engineer Java | Kotlin | Cloud Native At a glance • Principal level backend role with architectural ownership, • Java and Kotlin microservices in a cloud native environment, • Hybrid working in Belfast, • Salary up to £80k plus bonus The role As a Principal Java Engineer, you will provide technical leadership across a critical product area, shaping architecture, guiding engineering standards and influencing how scalable backend systems are designed and delivered. You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship. What you will be doing • Owning technical direction and architecture for key backend services, • Designing, building and evolving scalable Java and Kotlin microservices, • Driving best practices around TDD, BDD and clean code, • Leading code reviews and setting high engineering standards, • Decomposing complex monolithic systems into modern distributed architectures, • Partnering with product, platform and engineering leadership on technical strategy, • Owning production systems including reliability, monitoring and on-call standards, • Identifying and addressing technical debt with a long term mindset, • Mentoring Senior and mid-level engineers across the team, • Contributing to continuous improvement of engineering processes and tooling What you’ll need: • 8+ years’ experience in backend software engineering, • Strong commercial experience using Java, with Kotlin exposure a plus, • Proven experience designing and building scalable microservices, • Strong background in Cloud native architectures, • Extensive experience designing and building RESTful APIs, • Deep understanding of SOLID principles and software design patterns, • Strong experience with relational databases such as MySQL, • Ability to influence architecture and technical decisions at team level and above, • Excellent problem solving and communication skills What’s on offer • Competitive salary up to £80k plus bonus, • Generous benefits package, • Hybrid working with a modern Belfast office

🏦 Senior KDB Engineer - Global Investment Bank 📍 Belfast Recruiting for the FICC Low Latency Trading technology team at a leading global investment bank with operations across Toronto, London, Dublin, and New York. About the firm: Major Tier 1 investment bank with a significant presence in Fixed Income, Currencies & Commodities markets. Their electronic trading platforms handle critical client pricing and trading activities globally, utilizing cutting-edge low latency technology. The role: Join a team building strategic low latency e-trading applications covering pricing, order execution, quoting solutions, automated trading, risk management, and data analytics. These systems are mission-critical for front office quants, traders, and enterprise risk. What you'll do: • Build and maintain Kdb/q analytics and data pipelines for low latency trading, • Work on market data processing, storage and real-time analytics, • Design frameworks, libraries and APIs for front office systems, • Partner closely with quants and traders on pricing and execution platforms, • Support dealer-to-dealer and dealer-to-client trading solutions, • Apply DevOps practices to highly scalable trading infrastructure You have: ✅ 8-10 years in finance technology (minimum 5 considered) ✅ Deep Kdb/q expertise (architecture, analytics, market data) ✅ Capital markets knowledge - ideally eTrading experience ✅ Experience working directly with front office/business teams ✅ Strong API and framework design skills ✅ Test-driven development and agile methodologies Highly valued: • FX, Fixed Income, or Commodities experience, • Surveillance platform experience, • Java or Python programming, • Linux/shell scripting and DevOps tooling, • Containers and orchestration (Docker, Kubernetes), • Messaging protocols (gRPC) The team: Global, cross-functional team spanning multiple financial centers. Strong ownership culture, collaborative environment, and focus on delivering scalable solutions for latency-sensitive trading. Interested in low latency FICC technology? Apply below #KDB #KdbQ #LowLatency #FICC #FXTrading #FixedIncome #TradingTechnology #Belfast #FinTech #InvestmentBanking #MarketData

Cloud Native Engineering Lead Location Belfast Hybrid or Remote Options Available Type Permanent Compensation Market leading salary, pension and equity participation About the company A fast scaling Northern Ireland technology success story continues its expansion through 2026. This is a business known for solving complex problems with elegant, cloud native engineering and for trusting senior engineers to shape how technology is built and scaled. They are now hiring a Cloud Native Engineering Lead to play a key role in the next phase of growth. The opportunity This is a senior technical leadership role that blends deep hands on engineering with people leadership. You will remain close to architecture and delivery while guiding and developing a high calibre engineering team. You will influence technical strategy, shape product direction and help build globally deployed cloud native software that operates at scale. This role suits someone who enjoys ownership, autonomy and building things the right way. What you will do Lead and mentor a distributed engineering team, setting a high bar for delivery and code quality Own technical design and architectural decisions across platforms and services Build and scale backend services using Node and Python Design and optimise data models across PostgreSQL, MySQL, Snowflake, MongoDB, DynamoDB, Redis and Elasticsearch Drive infrastructure and DevOps improvements across AWS, Kubernetes, Terraform, Ansible and modern CI CD tooling Partner closely with product and design to deliver meaningful features Champion engineering best practice including TDD, BDD, unit and integration testing Coach engineers and actively grow technical capability within the team The technology Backend Python,Node.js, Typescript, Frontend React, Redux, Svelte, HTML, CSS Data Relational databases, Snowflake, NoSQL, Elasticsearch, Redis Cloud and DevOps AWS, Kubernetes, Terraform, Ansible, GitHub CI CD, GitLab CI, Jenkins Monitoring Datadog, Grafana, CloudWatch What you bring Proven experience leading teams as a Senior or Lead Engineer in product led environments Strong backend engineering capability across modern languages and frameworks Hands on experience with cloud native platforms and containerised deployments Track record delivering high scale, data intensive systems Ability to balance hands on development with leadership and mentoring Collaborative mindset with a passion for building high quality software Nice to have Experience contributing to or building open source products Exposure to payments, licensing or SaaS platforms Background in security, DevOps or data engineering What is on offer Opportunity to lead cloud native engineering in a high growth technology company Hybrid working with real flexibility and autonomy Clear progression into architecture or broader technical leadership roles Collaborative engineering culture with modern tooling and continuous delivery OCHO have placed multiple Senior and Staff Engineers with this business and can share strong testimonials on request. For an informal conversation, reach out to Ryan Quinn on LinkedIn. Skills: Python AWS React. Node Java Datadog Benefits: pension + options

Senior Software Engineer | .NET, AWS | Belfast (Hybrid) Location: Belfast Type: Permanent About the Opportunity: This role sits within a payments engineering environment delivering high-volume, business-critical systems. Teams operate using strong Lean software practices, with clear technical leadership and well-defined product requirements upstream. As a Senior Software Engineer, you will work on cloud-native .NET services supporting core platform capabilities. You will contribute across design, build, and production support, while collaborating closely with Staff Engineers, Product Architecture, QA, and Operations. This is a role for someone who values ownership, quality, and pragmatic engineering. What Youll Be Doing: Designing, developing, and delivering backend services using C# and .NET Building and operating cloud-native solutions on AWS, including serverless components Working within feature-based teams alongside Staff and Senior Engineers Contributing across the full SDLC from design through release and live support Developing systems with a strong focus on reliability, security, and performance Collaborating closely with architecture, product, QA, and operations teams Supporting production systems, including investigation and resolution of issues Improving developer experience through automation, tooling, and CI/CD practices Mentoring other engineers through code reviews, pairing, and knowledge sharing What Youll Bring: Strong commercial experience building backend systems using .NET and C# Hands-on experience delivering cloud-based solutions on AWS Experience working with distributed and event-driven systems Strong understanding of relational databases such as SQL Server or PostgreSQL Experience working in Lean or Agile delivery environments Familiarity with containerisation and orchestration using Docker and Kubernetes Experience contributing to CI/CD pipelines and release automation Strong problem-solving skills and the ability to work across complex systems Clear communication skills and a collaborative working style Why Join: Work on high-scale payment systems with real-world impact Clear team structure with strong technical leadership and ownership Flexible working model with no rigid office mandate Opportunity to join during a period of renewed hiring and investment Strong emphasis on quality hiring and long-term team building If you're interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn. Skills: .Net C# AWS Azure GCP Benefits: Pension Fund Medical Aid / Health Care

Company Description Version 1 has celebrated over 28 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapidly changing Digital-First world we live in. We foster strong partnerships with leading technology giants including Microsoft, AWS, Oracle, Red Hat, OutSystems, Snowflake, ensuring that our customers are provided with the highest quality solutions and services. Were an award-winning employer reflecting how our employees are at the very heart of Version 1 and what we do: UK & Ireland's premier AWS, Microsoft & Oracle partner 3300+ strong, €350/£300m revenue business 10+ years as a Great Place to Work in Ireland & UK Best Workplace for Women in the UK & Ireland by GPTW Best Workplace for Wellbeing in the UK by GPTW Were a core values driven company, we hire people who share our values, and we reward those who display and foster them, its deeply embedded within our DNA. Invest in us and well invest in you! Job Description Please note: Applications are welcome only from candidates currently residing in Ireland or Northern Ireland. We require a hands-on Senior Azure DevOps Engineer to drive the secure implementation of application infrastructure. The critical need is deep expertise in Azure API Management (APIM) (full lifecycle) and Application Gateway integration Core Technical Competencies (Must-Haves) Azure API Management (APIM): Proven experience delivering the full development lifecycle of APIM. Ability to define and implement advanced XML policies (throttling, caching, JWT validation). Experience integrating APIM with backend services and setting up the Developer Portal. Networking & Security: App Gateway: Implementation experience, specifically integrating with APIM and WAF (Web Application Firewall) configuration. Secure by Design: Demonstrated ability to build secure applications (OAuth2, OIDC, mTLS, VNET integration). DevOps & Automation: CI/CD: Proficiency in building automated build and release pipelines (Azure DevOps/GitHub Actions). IaC: Strong Terraform skills for infrastructure provisioning. Documentation: Must be able to independently craft High-Level Design (HLD) and Low-Level Design (LLD) documents for client sign-off. Secondary Skills (Contextual Awareness) Cloud Adoption Framework (CAF): Must understand Azure Landing Zone concepts (Management Groups, Subscriptions, Policy) to ensure deployments comply with existing governance, but does not need to be an LZ Architect. Consulting & Soft Skills Ability to translate technical constraints into business risks for stakeholders. Strong communication skills to liaise between the app development team and the platform/infrastructure team. Qualifications Essential Criteria: 7 years experience in Information Technology with 5 years DevOps experience with a focus on Microsoft Azure Self-driven approach at work with an intrinsic motivation to excel and take ownership of tasks and projects. Strong demonstrable experience with Azure DevOps (or equivalent CI/CD tooling), scripting languages, and configuration management tools such as Ansible, Chef, PowerShell DSC Experiencing building and configuring cloud services using Infrastructure as Code using Terraform Good knowledge on Microsoft Cloud adoption framework for Azure One or more of the following Azure certifications: Microsoft Certified: Azure Solutions Architect Expert, Microsoft Certified: DevOps Engineer Expert Experience of implementing modern CI/CD processes for releasing software Experience in implementing and advocating for DevOps methodologies and processes. Broad experience building and configuring Azure IaaS and PaaS service (i.e., pp Service, VNETs, NSGs, SQL databases, Service Bus, Function Apps, Key Vault, Logic Apps) Experience with Git Preferred criteria: Terraform Associate certification Additional Information Why Version 1? At Version 1, we believe in providing our employees with a comprehensive benefits package that prioritises their wellbeing, professional growth, and financial stability. Share in our success with our Quarterly Performance-Related Profit Share Scheme, where employees collectively benefit from a share of our company's profits. Strong Career Progression & mentorship coaching through our Strength in Balance & Leadership schemes with a dedicated quarterly Pathways Career Development programme. Flexible/remote working, Version 1 is tremendously understanding of life events and peoples individual circumstances and offer flexibility to help achieve a healthy work life balance. Financial Wellbeing initiatives including; Pension, Private Healthcare Cover, Life Assurance, Financial advice and an Employee Discount scheme. Employee Wellbeing schemes including Gym Discounts, Bike to Work, Fitness classes, Mindfulness Workshops, Employee Assistance Programme and much more. Generous holiday allowance, enhanced maternity/paternity leave, marriage/civil partnership leave and special leave policies. Educational assistance, incentivised certifications, and accreditations, including AWS, Microsoft, Oracle, and Red Hat. Reward schemes including Version 1s Annual Excellence Awards & Call-Out platform. Environment, Social and Community First initiatives allow you to get involved in local fundraising and development opportunities as part of fostering our diversity, inclusion and belonging schemes. And many more exciting benefits drop us a note to find out more. #LI-EB1

Principal Software Engineer | .NET, Payments Platform Location: Belfast Type: Permanent About the Opportunity: This role sits within a Belfast-based engineering group responsible for a high-throughput payments gateway handling millions of card transactions daily. The platform supports customers ranging from small businesses to enterprise-scale venues, where resilience, performance, and uptime are critical. As a Principal Software Engineer, you will act as a senior technical leader within the team, shaping delivery across complex initiatives while remaining hands-on. You will guide engineers of varying levels, influence technical direction, and ensure systems meet high standards for security, scalability, and reliability. What Youll Be Doing: Acting as a senior technical authority within the team, guiding solution design and implementation Leading delivery of complex features and initiatives across the payments platform Designing, modifying, and reviewing complex .NET code with a strong focus on quality and maintainability Advising on testing strategies, validation requirements, and corrective actions Applying deep understanding of engineering standards, methodologies, and PCI security requirements Estimating complex workstreams and contributing to roadmap planning Supporting deployment activities across test and production environments Identifying technical risks, investigating issues, and driving clear resolution paths Improving team effectiveness through better communication, tooling, and engineering practices Coaching and developing engineers through mentoring and hands-on support What Youll Bring: Significant commercial experience building server-side systems using .NET and C# Strong experience designing and delivering scalable web service solutions Solid background working with relational databases such as SQL Server Experience operating within CI/CD environments using tools such as Jenkins, GitLab, or similar Proven experience implementing automated testing practices, including unit and BDD-style tests Strong understanding of object-oriented design, refactoring, and design patterns Deep grasp of core software design principles including modularity, encapsulation, and separation of concerns Experience working in Agile, Scrum, Lean, or Kanban environments Strong analytical and problem-solving skills Clear communication skills and the ability to lead through influence rather than hierarchy Nice to Have: Experience working with payment processing systems or PCI-regulated environments Exposure to software architecture or systems design responsibilities Familiarity with front-end technologies such as HTML and CSS Why Join: Work on high-scale, always-on systems where engineering quality directly impacts customers Principal-level role with real technical ownership and influence Stable platform environment with complex and meaningful engineering challenges Flexible working model with a strong Belfast engineering presence If you're interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn. Skills: .Net Benefits: Pension Fund Medical Aid / Health Care Work From Home

Staff Software Engineer Location: Belfast, Northern Ireland, United Kingdom (Hybrid/Remote-friendly) The Opportunity We're partnering with a leading technology company delivering high-performance software used by a wide range of customers every day. They are seeking an experienced Staff Software Engineer to join their senior engineering team in Belfast. You'll work on critical software systems that power core business operations, with a focus on both backend services and cloud-based solutions. In this role, you will lead and mentor engineers, influence architectural decisions, and help deliver scalable, reliable, and secure software. While primarily backend-focused, you'll have the opportunity to contribute to front-end work where required, supporting end-to-end solutions and helping elevate engineering standards across the team. Key Responsibilities Design, build, and maintain backend services and core applications. Contribute to architectural discussions and technical decision-making. Work with cloud platforms, infrastructure as code, and containerised environments. Ensure systems are scalable, performant, secure, and resilient. Collaborate with Product Managers, Architects, and cross-functional teams. Support full-stack feature development as needed. Identify and drive improvements in engineering processes, practices, and tooling. Mentor engineers and foster a strong engineering culture. Essential Skills & Experience Degree in Computer Science, Software Engineering, or a related discipline. 6+ years of professional software development experience. Strong backend development experience (e.g., .NET, C#, or similar). Experience with cloud platforms, container orchestration (e.g., Kubernetes), and infrastructure as code. Solid understanding of scalable, cloud-native systems and microservice architectures. Experience with CI/CD pipelines and modern DevOps practices. Strong problem-solving, communication, and collaboration skills. Desirable Skills Exposure to front-end technologies (React, HTML/CSS, or similar). Knowledge of secure software practices and application security. Experience with test automation and unit testing frameworks. Familiarity with large-scale distributed systems. Experience in agile or lean product-focused environments. Why Join? Work on high-impact software systems used by a diverse customer base. Hybrid/remote-friendly working with flexible arrangements. Competitive salary (£65,000-£70,000) and benefits package. Generous leave entitlement, including holidays and bank holidays. Private healthcare, dental, and life insurance. Pension contributions and flexible benefits schemes. Join a company that values innovation, autonomy, and career development. Be part of a senior, collaborative engineering team driving real impact. Skills: C# .NET Remote Staff Benefits: Work From Home

Principal Software Engineer .NET, Cloud | Belfast (Hybrid) Location: Belfast Type: Permanent About the Opportunity: This is a true Principal Engineer role with ownership over technology that supports global financial markets. You will set technical direction, influence architecture, and lead engineering standards across complex Rates and FX platforms. This role suits someone who wants real impact, scale, and accountability, not just delivery. Working in an Agile environment, you will partner closely with architects, engineers, and stakeholders across regions to drive resilient, high-quality systems. What Youll Be Doing: Leading a cross-functional engineering team delivering Front Office systems for Rates and FX Setting technical direction and raising engineering standards at a global level Designing scalable, resilient solutions in partnership with Solution Architects and Enterprise Architecture Owning delivery outcomes end to end, from design through production Driving continuous improvement through better tooling, practices, and technology choices Acting as a senior technical voice, identifying risks early and removing delivery blockers What Youll Bring: Proven experience leading high-performing engineering teams in Agile environments Deep expertise in building distributed, event-driven, cloud-native systems Expert-level experience with .NET Framework and .NET Core using C# Strong API design and delivery experience using REST and GraphQL Solid relational database experience using MSSQL or MySQL Hands-on cloud experience with AWS and Azure Strong understanding of the full SDLC, including production support Experience building automated testing solutions for complex systems Clear, confident communication with technical and non-technical stakeholders Why Join: Principal-level ownership with real architectural influence High-scale, business-critical systems where quality and resilience matter Collaborative, senior engineering environment with global reach A role designed for technical leadership, not just execution If you're interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn. Skills: .Net AWS Benefits: Medical Aid / Health Care Pension Fund

A leading engineering services firm in Belfast is seeking a Lead Tooling/Mechanical Design Engineer to enhance marine projects. Suitable candidates should have an engineering degree, CAD proficiency, and strong problem-solving skills.

They are looking for a Senior Support Engineer to play a key role in supporting enterprise customers and ensuring reliable, high-quality production environments. Supporting deployments, configuration, and best practices in cloud-native environments. Continuously improving support processes, tooling,

Mydas Recruitment are experts in the sourcing and supply of Engineers to leading organisations. We have an exciting new opportunity available, our client, a multinational manufacturing organisation, based in Northern Ireland, have a requirement for a manufacturing engineer to work with multifunctional teams throughout the organisation, to ensure that products are delivered to meet costs, quality & schedule. Candidates should have 2+ years experience of experience of: Support shop floor activities Lead & support new products & new programmes Supporting and leading quality policies & procedures provide liaison between design & manufacturing teams work with clients & customers to resolve any issues identify & rectify all non-conforming products identify any tooling requirements help to drive manufacturing efficiency work in cross functional team including design, manufacturing, supply chain etc Assess production line performance / implement Lean procedures This is an excellent opportunity for a career minded individual within a supportive, multinational organisation flexible working options available TPBN1_UKTJ

Job Description Tooling Design Engineer (Stress) - Submarines Full-Time Derby (5 days on site) An exciting opportunity for a Tooling Design Engineer role with a strong background in stress in the Product Specific Tooling Team has arisen within the New Build and Components Business, in Nuclear (Subma

Tooling Design Engineer Pay: £45hr - £50hr (Umbrella) Location: Ampthill Contract: 6x Months Hours: 37. Pattern: 4x Flex (4-day week, MondayThursday) Security Clearance: SC (Required to start) About the Role We are seeking an experienced Tooling Design Engineer to join a world class leading defen

We see release engineering as a first‑class engineering practice and are looking for people who can bring deep engineering insights to automation, testing capabilities, reporting and data analytics, as well as run processes in partnership with Canonical and community teams. We are seeking a system

A leading benefits platform in the United Kingdom seeks a Platform Engineer to enhance their infrastructure and developer tooling.

Are you looking for a fresh challenge, with a forward-thinking organisation within the high-tech engineering sector? The Hyde Group are established Industry experts within Aerospace Engineering and have a new vacancy for a Jig & Tool Design Engineer. We are one of the UK's largest and most trusted e

A leading IT services firm in Tewkesbury is seeking a Senior Security Engineer to provide critical technical support and maintain secure system functionality.

A prominent technology company in the United Kingdom is seeking a Senior Principal Offensive Security Engineer to enhance the security of its cloud infrastructure. Candidates should possess over 6 years of experience in security engineering and a strong background in vulnerabilities and threat model

A leading engineering recruitment agency is seeking a Senior Programmer Setter/Operator to join a precision engineering firm in the UK. The role involves programming and operating CNC machinery, working with diverse materials, and mentoring junior engineers.

Senior Data Engineer - AI Tooling - Fully Remote - up to GBP140k.

A leading engineering company in the UK is seeking a skilled Design Engineer specializing in jigs and tool design.

A leading tech company based in the United Kingdom is seeking experienced Python engineers for a project focused on developing Model Context Protocol (MCP) servers.