Java Software Engineer jobs in Belfast

You will have a truly global reach, which will provide you with new experiences and development opportunities right here in Belfast's iconic Titanic Quarter.

You will need to employ strong communication skills, necessary to effectively produce client solutions. This job description provides a high-level review of the types of work performed.

You will work across cutting‑edge platforms including Payment Networks, Digital Banking, Emerging Payments, and highly scalable data and analytics environments built on Google Cloud Platform, Data Lakes and Power BI. This role involves modern engineering, integration, testing, and hands‑on development within a high‑impact digital landscape.

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our...

Software Engineer Document Management & Workflow Systems (Contract) Any additional information you require for this job can be found in the below text Make sure to read thoroughly, then apply. Details - Initial 6-month contract with extension - Fully remote (EU time zones) - Start: End of February / early March - Outside IR35 We are looking for an experienced Software Engineer contractor to...

Job Description Principal / Staff Java Developer – (Cybersecurity) The Opportunity The Ocho Exclusive opportunity for a Staff Java Developer to play a foundational role in a greenfield backend team at a fast-scaling, cloud-first business. This is a key hire into the backend function, with the chance to set the tone for engineering standards, own key parts of the architecture, and mentor...

You will drive the product development process from an architectural and technical leadership standpoint to ensure the delivery of best‑in‑class outcomes for our customers. Specifically, your focus will be to: Collaborate to develop and drive the technical strategy for our unified Exposure Management offerings.

You will work as part of a collaborative R&D team focused on delivering high-quality features, and developing the services architecture. This role is ideal for an engineer who thrives in complex systems and is looking to develop new services that exploit a cloud-native ecosystem while modernizing legacy services into a containerized, cloud-native ecosystem.

Job Description I'm looking for a talented Software Engineer to join a growing engineering team and help build scalable, cloud-native applications. You’ll work across the full development lifecycle, designing and delivering high-quality solutions using Java, TypeScript, and AWS in a modern, agile environment. What You’ll Do - Design, develop, and maintain backend services using Java and...

At Orange Logic, we’ve been solving complex content challenges for over two decades—driven by innovation, curiosity, and a passion for impact, our intelligent Digital Asset Management (DAM) system, Orange Logic Platform, empowers organizations across industries to manage, access, and leverage their digital assets more effectively. We’re not just building powerful software—we’re building a team of...

Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You’ll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI’s global edge. This role requires deep expertise in Linux networking data path and...

Job title: C++ 20/23 Software Engineer Client: Elite FinTech Firm Salary: Up to £150k + Bonus Location: London (Hybrid Working) Sells: Cutting-edge tech, ownership of multiple greenfield projects, no red tape, gold medal Olympiads, exceptional technologists, option to research and develop your own models, a friendly/collaborative environment, beautiful offices. An Elite Tech Firm is looking...

About the Team Dex is an AI-powered recruiter, matching exceptional software engineers with top tech companies. We're one of the fastest-growing UK startups, and have raised $3.1M from a16z and Concept Ventures to build a best-in-class voice agent, matching engine and web app experience that will redefine the way that talent and opportunity connect. We're hiring a Python engineer to join our...

Software Engineer Tech Stack: C# / .NET / Git / Azure Location: Fully Remote (no office travel required) Salary: £55,000 – £65,000 + Benefits This is an excellent opportunity to join a small but growing insurance software company, as they look to expand their development team. You’ll work across a variety of initiatives, including their core product development, system migrations, and...

You will take initiative to identify and own solutions to problems, and you will partner with cross-functional teams owning requirements that take into account all parties’ needs.

You will act as a resource by advising and mentoring junior engineers to continue to build the technical capabilities of our teams.

Software Engineer (C#, Java, Server-Side Development) Location: Belfast / Remote (Onsite for the odd get together a few times a month) Employment Type: Full-time, Permanent Salary: £55-58K + Benefits About the Role We’re looking for an experienced Software Engineer with strong C#, Java, and server-side development skills to join a global fintech company. You’ll design and build secure,...

Job Description 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. Job Overview We're looking for multiple talented engineers Server Side , to join one of our...

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...

You will play a key role in developing tooling for the Citi developer community using a range of technologies including Java and SpringBoot microservices on Linux on OpenShift.

You will provide expert guidance, facilitating their onboarding and maximizing their utilization of the innovative tools and platforms you help create.

Software Engineer (Java) Experience level: 2-4 years Are you a Java engineer who enjoys building well-designed systems, writing clean code, and working on problems that actually matter? My client is looking for a Software Engineer with 2-4 years' commercial Java experience to join a collaborative engineering team working on scalable, production-grade systems. This role is ideal for someone who...

You will have created the system architecture, and established key relationships - Lead the architectural design of the system that takes into consideration our future near real-time requirements, complex data integration, and scalability.

You will have created architectural diagrams that stakeholders can understand.

You will have delivered the key parts of the platform reaching over 1,000 users.