Full Stack Java Engineer jobs in Belfast

Ocho

Staff Software Engineer - Java | Remote First | Belfast The kind of role that doesn't come up often. Our client is a US-based software company whose platforms sit at the absolute core of how major Academic and Sporting institutions operate day to day. We're talking mission-critical systems,ones wher

Stanford Black Limited

Senior Java Engineer (VP) - FX Options Up to £160k on the base We are seeking a highly skilled FX Options Java Developer to join a front-office electronic trading team within a leading global financial institution. This role sits at the heart of the FX eTrading business, focusing on building and enh

Uniting Ambition

Senior Java Engineer – Customer Communications Platforms We’re hiring a Senior Java Engineer to build and run event-driven customer communications platforms at scale. You’ll design and own Java (Spring Boot) microservices that power real-time messaging, notifications, and customer interactions. This

Fairmont Recruitment Technology

Lead Software Engineer (Full Stack) 📍 Manchester | Hybrid (2–3 days onsite) 💰 Up to £70,000 A well-established, UK-based financial services organisation is looking for a Lead Software Engineer to join a growing engineering function and play a key role in shaping the next phase of its platform. Thi

Pavilion Recruitment Solutions

Senior Full Stack Software Engineer Salary - £70,000 - £85,000 London/ hybrid We are working with an ambitious, product-led technology company that is investing heavily in modern, cloud-native engineering – and they’re looking for a Senior Full Stack Software Engineer who thrives on building new, no

Oliver Bernard

Senior Full Stack AI Engineer | Python, React, AI Hybrid working | 1–2 days a week in Central London Full time | Paying £100k–£130k + bonus Oliver Bernard have partnered with a fast-growing FinTech in London who are putting AI engineering at the forefront of how they build software and deliver best-

Entrust

As a Senior Full stack Engineer for the SDK team, you will join a talented and collaborative team dedicated to building resilient, scalable, and delightful systems and experiences for our customers. Leveraging your expertise across both frontend and backend technologies, you will work on impactful p

Optimal

AI Product Engineer | Full-Stack | Python | React | TypeScript | LLMs | Startup Experience Required Salary: £145,000 - £160,000 + meaningful cash bonus + equity Contract: Permanent Start: ASAP Working Model: Hybrid – London (2/3 days a week in office) Location: London Eligibility: Open to candidates

Consultancy.uk

Job DescriptionAre you up for the challenge of creating seamless user experiences from every angle? Our Digital team are looking for a skilled and experienced Full Stack Engineer confident in the JavaScript/TypeScript stack, from front-of-frontend through to Node APIs and infrastructure. You will wo

Job Req Id 26954519 Location(s) Belfast, Northern Ireland, United Kingdom Job Type Hybrid Posted Apr. 10, 2026 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

TP ICAP Group Services Ltd

Role Overview Liquidnet is seeking an exceptional and experienced developer to join the Internal Tools team. This experienced individual has a proven track record of developing high quality software in a world-class financial services organization preferably within an electronic trading environment.

Job Req Id 26952288 Location(s) Belfast, Northern Ireland, United Kingdom Job Type Hybrid Posted Apr. 10, 2026 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

Citi

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 mark

Consultancy.uk

A leading consultancy firm in Belfast is seeking a Full Stack Engineer to create seamless user experiences using the JavaScript/TypeScript stack. You will work closely with a digital team, responsible for delivering transformative solutions and supporting junior analysts. The role requires solid API

Citi

Responsibilities Design, develop, and maintain high-quality, responsive, and performant user interfaces using TypeScript, React.js, and modern frontend technologies. Implement state management solutions (e.g., Redux, Redux Toolkit) to ensure scalable and maintainable application state. Collaborate w

Citi

A global financial institution in Belfast is seeking a Mid-level Java Developer responsible for designing and implementing microservice applications using Java and Spring Boot. The position emphasizes automation and efficiency in financial processes, with opportunities for learning in a flexible hyb

Dandelion Connections

Full Stack Software Engineer (All Levels) – Remote Ready to make your application Please do read through the description at least once before clicking on Apply. Overview: We are looking for a motivated Full Stack Software Engineer at any stage of their career to join an innovative tech company. This

Ultimate Asset

Full Stack Engineer - Remote PLEASE NOTE: YOU MUST BE A RESIDENT OF THE U.K. TO BE CONSIDERED FOR THIS ROLE. An early stage, high growth technology business is redefining how eCommerce brands connect with customers through data driven, automated marketing solutions. With a strong product focus and r

Stealth IT Consulting

This is an exciting opportunity to join a major global consulting and digital transformation organisation, recognised for delivering large-scale solutions across some of the UK's most influential sectors. Their teams partner with government departments, financial services institutions, energy compan

Citigroup

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 marke