Java Developer - Belfast, Northern Ireland
Randstad Digital
BelfastRole: Java DeveloperType: PERM/FTELocation: Belfast, Northern IrelandWorking Model: HybridCore Responsibilities:Develop:...Read More>>.
Randstad Digital
BelfastRole: Java DeveloperType: PERM/FTELocation: Belfast, Northern IrelandWorking Model: HybridCore Responsibilities:Develop:...Read More>>.
fortice
CardiffOverview In this role you will design, develop and deliver multi-tier applications for Public Sector and National Security projects. You will contribute across client and server sides, aligning with agile practices and enterprise-scale arch...Read More>>.
Quant Capital
LondonOverview As a senior Java Developer at a pioneering fintech start-up, you will design and implement high-performance, scalable backend services that power the company’s big data platform. You’ll work closely with cross-functional teams...Read More>>.
Quant Capital
LondonOverview In this role you will lead a growing engineering group to evolve the core platform and greenfield systems for a global fintech in the invoice finance space. You will mentor a 15–20 person team, collaborate with product and suppor...Read More>>.
Client Server
Newcastle upon TyneOverview As a Java Developer in a growing professional services firm, you will help transform a complex C++ legacy trading system into a modern Java-based solution. You’ll work closely with Front Office trading teams and fellow engineers...Read More>>.
Version 1
LondonOverview As a Java Developer at Version 1, you will deliver Java-based solutions across enterprise projects, leveraging Azure Cloud and Apigee for API-driven integrations. You’ll join a driven, agile team to build distributed systems and...Read More>>.
NTT DATA
LondonOverview As a Senior Java Developer at NTT DATA, you will design, build, and maintain cloud-native Java applications using Spring Boot and microservices. You will shape scalable REST-based services and robust CI/CD pipelines, collaborating...Read More>>.
Quant Capital
LondonOverview In this role you will join a fast-paced fintech startup to help build an enterprise-grade Java platform. You will work closely with the CTO, own critical code and contribute to architecture, while staying hands-on. The environment...Read More>>.
Quant Capital
LondonOverview In this role you will design and implement frontend features for a high‑growth tech-driven trading platform. You’ll work closely with cross‑functional teams to deliver business functionality and shape the product vision in a...Read More>>.
Quant Capital
LondonOverview In this role you will contribute to a cloud-native Java stack within a SaaS portfolio management platform. You’ll design, develop and test microservices deployed to AWS, collaborating closely with cross-functional teams to solve...Read More>>.
London Stock Exchange Group
LondonOverview In this Lead Java Engineer role, you will shape the CDSClear risk platform, delivering production-grade risk models and execution patterns at scale. You’ll work closely with risk, pricing and analytics teams to ensure correctness...Read More>>.
Version 1
BirminghamOverview As a Senior Kotlin Developer in Version 1's UK Digital & Cloud Practice, you will help design, build, and maintain cloud-based software with a focus on secure, scalable solutions. You lead technical work within an agile team, ownin...Read More>>.
Quant Capital
LondonOverview In this role you will help build a brand-new greenfield trading platform for a London-based hedge fund. You will work closely with the Head of Trading and the Execution Technology Team to design and develop Java-based trading algor...Read More>>.
Nexus Jobs
LondonOverview In this role you lead the technical execution for a fintech-focused product, driving fast iterative development in an Agile environment. You work across iOS, Android and web platforms to deliver a high-performance app. You will coo...Read More>>.
Deloitte
Newcastle upon TyneOverview In this role you will deliver and maintain Java-based solutions for Deloitte's Technology & Transformation practice, enabling data-driven client programs. You will work in cross-functional teams to design and deploy innovative serv...Read More>>.
Quant Capital
LondonOverview As a Java Engineer in a small, tech‑driven hedge fund, you will own development and production support for trading systems. You’ll work closely with a tight-knit team to scale and improve high‑performance, open‑source–dri...Read More>>.
Quant Capital
LondonOverview In this Junior Java Developer role, you join a fintech startup building an innovative rewards platform for merchants and consumers. You will contribute to a greenfield project alongside a mobile app team, using Core Java and fronte...Read More>>.
Quant Capital
LondonOverview In this role you will design, develop, test and deploy Java microservices in the AWS cloud to support a portfolio management SaaS platform used by investment teams. You’ll work in a collaborative, fast-paced environment with a fo...Read More>>.
Quant Capital
LondonOverview In this role you will join a London-based trading firm’s low-latency team to design and implement Java-based trading algorithms. You’ll help build a greenfield, low-latency trading platform and connect to financial exchanges, s...Read More>>.
Citigroup
BelfastOverview In this role you will advance Citi’s Global Market Data platform for the global equities business, focusing on low-latency data delivery and system enhancements. You will collaborate with cross-functional teams including producti...Read More>>.
Quant Capital
LondonOverview In this contract role, you will apply your Core Java expertise to a fast-paced trading tech platform, enabling high-scale, data-driven financial services. You’ll work within an agile, test-driven environment to design and impleme...Read More>>.
Quant Capital
LondonOverview As a Senior Core Java Developer in a fast-paced post-trade tech environment, you will help shape the architecture and deliver integration solutions for a global trading business. You will design, prototype, and evaluate tools to su...Read More>>.
Quant Capital
LondonOverview In this role you will help design and implement new trading algorithms in Java, support a greenfield low-latency trading platform, and ensure robust connectivity to financial exchanges. You will work closely with the Head of Tradin...Read More>>.
London Stock Exchange Group
LondonOverview In this role you design, develop, and deliver robust C++ and Java software for a defined product area, owning medium-to-large components. You collaborate with architects, product managers, and delivery teams to translate requiremen...Read More>>.
Nexus Jobs
RedhillOverview In this role you will design and develop Java Enterprise applications with a focus on Liferay portals, contributing to client projects from Surrey. You will work within a team, lead varying team sizes, and ensure delivery on time w...Read More>>.
Citigroup
BelfastOverview In this role you drive the technical design, development and optimization of Citi’s regulatory reporting framework and data pipelines, focusing on onboarding new regulations. You’ll lead a team of engineers within an Agile sett...Read More>>.
London Stock Exchange Group
LondonOverview As a hands-on senior engineer, you will design, build, and operate mission-critical FX market infrastructure using C++ and Java. You’ll own delivery of high‑performance components, shaping architecture and platform evolution. Y...Read More>>.
Quant Capital
LondonOverview In this role you will help design and build trading algorithms and a new low-latency platform for a London-based quant-backed trading house. You’ll collaborate with the Head of Trading and the Quant Team to translate trading requ...Read More>>.
Methods Consulting
LondonOverview In this Back End Developer role, you will diagnose and fix live production issues in Java-based systems, ensuring stable, well-tested changes. You’ll work with 2nd Line Operations, QA, and feature teams to triage incidents and de...Read More>>.
Luxoft
LondonOverview In this role you will design and deliver integration components connecting Loan IQ with upstream and downstream systems, guiding a pod of developers and promoting cloud-native patterns. You will mentor mid-level engineers and lever...Read More>>.
Quant Capital
LondonOverview In this role you will design, develop, and deploy cloud-based Java microservices to support a growing fintech platform. You will work closely with cross-functional teams in a collaborative, paired programming environment to solve c...Read More>>.
Halliburton
Overview In this role you will design, develop, and maintain subsurface evaluation solutions for the energy sector as part of the Neftex Technical Services Team. You will contribute to building reliable Java-based desktop and web applicatio...Read More>>.
Quant Capital
LondonOverview In this role, you will build and enhance the firm's high-performance Execution Management System and in-house execution capabilities. You’ll work closely with Trading Desk and Research to extend multi-asset EMS, order routing, an...Read More>>.
Quant Capital
LondonOverview In this role you will help build a new risk engine for a high-profile systematic trading hedge fund. You will work on a large, Java-based distributed system that processes real-time data for portfolio management, focusing on perfor...Read More>>.
Network IT
StaffordSenior Java Developer 12 month contract Hybrid working - Multiple UK office locations £700-£750 per day Inside IR35 Network IT are currently recruiting for a Senior Java Developer to help design, build and support...Read More>>.
JAM Recruitment Ltd
Based in Birmingham, this Senior Java Developer contract role pays £700-£750 per day inside IR35. The 12-month assignment offers hybrid working across multiple UK office locations. You will design, build, and support software products underpi...Read More>>.
Elastic
Elastic is looking for a Senior Software Engineer to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience. This team owns how nodes in an Elasticsearch cluster communicate, an...Read More>>.
Citigroup Inc.
Northern IrelandDiscover your future at CitiWorking 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...Read More>>.
Tesco Technology
Welwyn Garden CitySenior Software Development Engineers (SDEs) are the creative minds developing the software applications that make life easier for customers. Responsible for the entire development and support process for a software programme. Your applications...Read More>>.
Experis
Ribble ValleyExperis is seeking a Java Engineer to join a major digital transformation programme in a large-scale technology environment. The role is based in Telford with a minimum of 2 days on-site per week, offering a daily rate of £600.00–£620.00 insid...Read More>>.
Ocho People
Northern IrelandOcho People in Belfast is seeking a Senior Java Engineer to design, build and maintain cloud infrastructure across environments (AWS preferred). You’ll collaborate with a tight-knit team to improve reliability, scalability and performance on gre...Read More>>.
Onyx-Conseil
Liferay with Java Developer - Surrey We are looking to recruit a Java Developer with at least 2 to 5 years solid development expertise using Java Enterprise J2EE with Liferay. You will have experience of Designing & Devel...Read More>>.
TEKsystems
SheffieldOverviewFull Stack Java Developer role at TEKsystems. This application is a suite of microservices used to manage outreach to customers for information, authorisations, etc. The team is distributed across China, India, Poland and the U...Read More>>.
NPAworldwide
Are you an experienced Senior Software Engineer or Technical Lead who enjoys remaining hands-on while guiding teams and shaping technical solutions? A leading specialist technical consultancy is looking for a Software Technical Lead to j...Read More>>.
Capgemini
Capgemini is seeking a Senior Java Engineer to join their team in the United Kingdom. This role offers the opportunity to work on impactful projects in a hybrid environment, balancing office, client site, and remote work.As a Senior Enginee...Read More>>.
TEKsystems
Burgess HillTEKsystems is looking for a Backend Java Developer in Burgess Hill, UK. This role focuses on backend microservices development using Java (17+) and involves working with event-driven architectures powered by Kafka. Candidates should have a strong...Read More>>.
Scrumconnect Limited
Newcastle upon TyneNewcastle, United Kingdom | Posted on 10/09/2026Scrumconnect Consulting is a multi-award-winning digital consultancy whose work has positively influenced the lives of over 40 million UK citizens. We deliver impactful technology solutions ac...Read More>>.
Railway Corp
Arenaflex is seeking a Full Stack Java Software Engineer to join our Customer Systems team. You will design, develop and deploy Java-based software systems that are secure, scalable and efficient, collaborating with business stakeholders and techn...Read More>>.
Bangura Solutions Limited
Long-term Java Developer role available for a UKIC DV Cleared individual.Working on a secure programme, this will be a broad development role that will give you an opportunity to develop cutting edge Software Development web applications...Read More>>.
Wipro
Wipro is seeking a Full Stack Java Engineer to join our digital engineering team, supporting a leading global banking client. You will design, build, and enhance secure, scalable enterprise applications that power critical services in a highly reg...Read More>>.