Java Software Engineer jobs in Belfast

Senior Software Engineer - Java / Kotlin At a glance Senior backend role within a product team Java and Kotlin microservices in a Cloud native environment Hybrid working (Belfast) Salary up to £65k The role As a Senior Engineer, you will play a key role in designing, building and owning solutions that directly extend and enhance the client experience. You will collaborate with highly capable...

MCS Group is working exclusively with a high-growth software company with deep roots in Belfast. We're seeking a Senior Software Engineer with strong expertise in Java to join a growing team within their engineering function in Belfast. As a Senior Java Developer, you'll be part of a group driving transformation across some pretty unique industries, helping global brands through the creation of...

Role Overview We are seeking a Java Software Engineer to join a small, technically rigorous founding team building complex, data-intensive engineering systems. The role is remote-first, with periodic in-person collaboration in Oxford or San Francisco. The position involves close collaboration with the Founding Engineer on backend infrastructure, internal platforms, and system architecture. In...

We are a dynamic technology company in the Earth Observation (EO) industry with a mission to make EO data more accessible to business consumers. Our clientele spans across the globe, encompassing diverse industries such as insurance, energy, and environmental organizations. Following a successful seed round, we are transforming our company around a new SaaS business model. We are seeking a Full...

MCS Group is thrilled to be partnering exclusively with fast-growing technology company in the energy sector. They are expanding their Belfast engineering team and are looking for a Staff Software Engineer to join and hit the ground running. The company builds a platform connecting businesses with external partners, helping large-scale operations work more efficiently and reliably. Day-to-day...

Job description. Senior Software Engineer - Java Location: Belfast / Hybrid Eligibility: UK work authorisation required This role sits within a global technology business building large-scale platforms used by millions of people every day. You'll join a highly capable engineering team working on complex, high-throughput systems where reliability, performance, and clean design really matter. As a...

Company A global, product-led technology business building large-scale digital platforms used by major retail and consumer brands worldwide. This is a true product engineering environment, not consultancy or project-based delivery, with long-term ownership of complex systems operating at significant scale. The Role You'll play a key role in designing and evolving highly scalable backend services...

MCS Group is looking for an experienced Test Automation Engineer / Software Developer in Test to join a delivery-focused team on an initial 3-month contract. The contract is very hands-on and is suited to someone coming from a strong Java background with a passion for test automation and quality engineering. The Details: This role requires prior experience of Java for test automation. Cucumber or...

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...

MCS Group is delighted to be partnering with a global software company that is driving innovation within the manufacturing technology space. This business is on an exciting journey of modernising its legacy product portfolio and expanding its best-in-class automation solutions - and they are now seeking an experienced Senior Software Engineer (Tech Lead) to join their growing team. ?? Location:...

Senior QA Engineer - Java / Microservices At a Glance QA Engineer role within a modern Java microservices, event-driven platform Strong focus on backend, API and automation testing Scaleup environment with real-world, high-impact products Hybrid Working (Belfast) Salary up to £65k The Client Our client is an advanced technology scaleup building cutting-edge hardware and cloud software solutions...

MCS Group is delighted to be working with a global financial technology organisation as they expand their engineering team in Belfast with the addition of a Full-Stack Java Engineer This is an opportunity to join a highly regarded technology function within a large, established financial services environment, building robust, high-performance systems used by clients across international markets....

Candidates must be based in NI All applications not based in NI will be disregarded Do you enjoy building robust, scalable systems that handle real complexity - and doing it with modern Java and AWS? My client is looking for a Staff Java Engineer to play a key role in designing and delivering high-performance backend services in a cloud-first environment. This is an opportunity to work on...

MCS Group is looking for an experienced SDET / Software Developer in Test to join a delivery-focused team on an initial 3-month contract. The role is hands-on and suited to someone with a strong Java background and a passion for test automation and quality engineering. The Details: Strong hands-on Java experience (automation-focused) is essential. Cucumber or Gherkin experience is also required,...

Do you enjoy designing and building scalable backend systems in the cloud - with Java at the core and AWS powering it all? My client is looking for a Senior Java Engineer to join a highly capable engineering team working on modern, cloud-native systems. This role offers real ownership, technical depth and the chance to shape how systems are built and run on AWS. What you'll be doing Designing,...

Principal Java Engineer - Cloud Security The Company Now is your opportunity to join this Exclusive cloud security Client at the forefront of runtime-powered solutions. Their cutting-edge technology empowers businesses to detect and respond to cloud security threats in real-time using advanced automation and contextual intelligence. Operating in a high-growth market, they collaborate with major...

Job Description 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,...

Principal Java Developers - Fintech The Opportunity Ocho is partnering with a fast-growing, product-led client, building out a brand-new Development team from scratch for an exciting Greenfield project. This is a hands-on role focused on designing, building, and scaling modern backend systems in a fully remote environment. Why Join? * You'll contribute to shaping the future of their product range...

Principal Java Engineer - NI 100% remote * Salary: up to £100k + bonus+ benefits About the Company: Our client is a leading global payments business with a strong engineering presence in Northern Ireland. Their mission is to radically and responsibly deliver value to merchants by building a next-gen, merchant-first ecosystem. With a product-centric culture and a focus on technical excellence,...

Mid-Level Software Engineer (Java) Exciting new FDI About the Company: Our client is a global leader in digital asset innovation, building technology that bridges traditional finance and the emerging crypto economy. Their mission is to create trusted, high-performance systems that enable institutions to seamlessly integrate digital assets into their portfolios and operations. As part of their...