Full Stack Java Engineer jobs in Belfast

Premier Group

Job Title: CRM Full-Stack Software Engineer Location: Remote Contract: 3 Months Outside IR35 Start Date: ASAP Rate: £350 - £400 per day Overview We are looking for a Full-Stack Software Engineer to play a key role in building a CRM platform from the ground up. This is a hands-on opportunity to desig

Job Req Id 26956080 Location(s) Belfast, Northern Ireland, United Kingdom Job Type Hybrid Posted Apr. 17, 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

Novera Search

Lead / Founding Engineer (Stealth Consumer Startup) We’re currently partnered with a stealth, early-stage consumer startup building a new interactive web platform. They’re looking for a Lead / Founding Engineer to join at an early stage and take ownership of building the product from the ground up.

Intec Select

Senior Full Stack Developer (Contract) Outside IR35 | Remote | Up to £600/day Overview We’re partnering with a specialist software consultancy delivering business-critical platforms across financial services and pensions. They’re looking for a Senior Full Stack Developer who enjoys proper engineerin

Citibank (Switzerland) AG

For additional information, please review .**Software Engineer, Wholesale Credit Risk Analytics**We are seeking a skilled and motivated software engineer to join our Credit Risk Technology team. This role offers an exciting opportunity to work on critical risk management systems, developing solution

eFinancialCareers

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 Full

Citigroup Inc.

A global financial services firm in Belfast is seeking a server side engineer to join its Chief Technology Office. This role emphasizes driving solutions within projects like SDLC Automation and Release on Demand, enhancing productivity for 30k engineers. The ideal candidate will write quality code

Citigroup Inc.

We're looking for an enthusiastic & talented server side engineer, to join one our high-impact teams inside Citi's CTO organisation. You'll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fa

Stealth iT Consulting

A prominent IT consultancy is actively searching for a talented Full Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an

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

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 Full

Citigroup

Full Stack Engineer (C#/WPF UI) – VP 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 adva

Twelve

Senior Software Engineer (AI-First Development) United Kingdom, Remote The Opportunity Are you a Java expert curious about the future of engineering? Join a leading global Financial Technology firm that is redefining the software development lifecycle. While many companies are just talking about AI,

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

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

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

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

Outlier

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents.

Outlier

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents.