Fullstack Java Engineer jobs in Belfast

*MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS:** As a Lead Software Engineer (Consultant) in Kainos, you’ll be responsible for leading teams and developing high quality solutions which delight our customers and impact the lives of users worldwide. It’s a fast-paced environment so

*Company Description** We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress furth

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 Engi

Role: Backend Developer Start Date: ASAP Contract Length: 6 months (extensions available) Work Location: Remote, with ad-hoc, expenses paid travel to office IR35 Status: Inside IR35 Industry: Government Interview Process: MS Teams, 1-2 Stage, Technical Interview Testing Are you a Backend Java Engine

Application Deadline: 20 March 2026 Department: Technology Location: Belfast Description Imagine catching criminals before they strike - that’s exactly what Napier’s AI-powered platform does! By analysing transactions and customers in real time, Napier AI’s technology empowers financial institutions

Are you a Principal Java Engineer who enjoys solving complex technical challenges and shaping the architecture of large-scale systems? Do you thrive in environments where you can influence technical direction, mentor talented engineers, and build robust cloud-native applications? My client is seekin

We’re looking for multiple talented engineers Server Side, to join one of 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 fast, like

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

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

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote, adhoc; Leeds, London or Manchester) Project Overview This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising cr

Role: Backend Developer Start Date: ASAP Contract Length: 6 months (extensions available) Work Location: Remote, with ad-hoc, expenses paid travel to office IR35 Status: Inside IR35 Industry: Government Interview Process: MS Teams, 1-2 Stage, Technical Interview Testing Are you a Backend Java Engine

Role: Backend Developer Start Date: ASAP Contract Length: 6 months (extensions available) Work Location: Remote, with ad-hoc, expenses paid travel to office IR35 Status: Inside IR35 Industry: Government Interview Process: MS Teams, 1-2 Stage, Technical Interview Testing Are you a Backend Java Engine

Olo

Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, by helping customers deliver more personalised and profitable guest experiences. As a result, our digital ordering, payment, and guest engagement solutions enable brands to do more with less and make every

Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry by helping customers deliver more personalised and profitable guest experiences. As a result our digital ordering payment and guest engagement solutions enable brands to do more with less and make every gue

We’re looking for multiple talented engineers Server Side, to join one of 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 fast, like

MCS Group is delighted to be partnering with a brand new FDI as they build out a new team here in Belfast. Our client is a high-growth cloud and data engineering consultancy. They are seeking a Java/Python software engineer to join their team. This organisation delivers mission-critical cloud, API,

MCS Group is delighted to be partnering with a brand new FDI as they build out a new team here in Belfast. Our client is a high-growth cloud and data engineering consultancy. They are seeking a Java/Python software engineer to join their team. This organisation delivers mission-critical cloud, API,

TP ICAP

The *Connectivity Engineer(CE)** will design, develop, support and enhance client facing and outbound connectivity platform. CE will contribute to the design and improvement of the automation testing framework for connectivity platform. CE will serve as third tier support for connectivity production

MCS Group is delighted to be partnering with a brand new FDI as they build out a new team here in Belfast. Our client is a high-growth cloud and data engineering consultancy. They are seeking a Java software engineer to join their team. This organisation delivers mission-critical cloud, API, and dat

TP ICAP

*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 environme