862+ Java Architect Jobs in Belfast, UK — Local Employers Hiring June 2026

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Java Architect

Staff /Director level Java Engineer (Low Latency) – Belfast, Northern Ireland (New US FDI) – Hybrid. Salary: Up to £135k + lucrative bonus + benefits. About the Company Our client is building a premier prediction market platform in partnership with two of the most respected names in finan ...

Lead Technical Architect: Cloud, Java & AWS

Kainos is seeking a Technical Architect (Consultant) in Belfast to lead teams and develop high-quality solutions that delight customers. Candidates should have experience with Java, Springboot, and AWS, as well as a track record of technical ownership in software projects. The role involves working closely with ...

Principal Java Engineer: Cloud Native Architect (Hybrid)

Principal Java Engineer - Belfast (Hybrid) We're hiring a Principal Java Engineer for one of the most interesting product engineering teams in Belfast. This is a genuine principal‑level role - not a senior engineer with a better title. You'll be setting technical direction, owning architecture dec ...

Principal Java Architect: Secure, Cloud Native Systems

A leading cybersecurity engineering team in Belfast is seeking a Principal Java Engineer to lead the design and development of complex Java and microservices-based systems. This role involves ensuring secure coding practices and optimizing performance while mentoring engineers. The ideal candidate will have exte ...

VP Level Java Architect for Equity Derivatives Platform

Citi is looking for a Senior Software Engineer (VP Level) for their Equity Derivatives Reference Data Platform in Belfast, United Kingdom. This role involves defining architecture, developing scalable applications, and collaborating with various stakeholders. The ideal candidate will have strong experi ...

Senior Java & Spring Architect for Scalable Cloud Systems

Lead Software Engineer Belfast, UnitedKingdom Posted 10 months ago This is a job posted by our partner Jooble Tech stack Spring Framework Java Kafka SQL Software Engineer messaging NoSQL Below is a snippet of the job description. To read the full text, please ...

Senior Java Architect – Low Latency, High Throughput (Hybrid)

Ocho, based in Belfast, seeks a Senior/Director level Java Engineer specializing in low-latency systems. This hands-on role involves architecting and maintaining core financial exchange infrastructure, ensuring reliability and performance. Join a world-class engineering team in an environment backed by ...

Java Engineer

Enso Recruitment is proud to be working with a global, technology-driven financial services organisation who are expanding their engineering capability within a highly critical connectivity platform. They are now seeking an experienced Java Engineer to join a specialist team ...

Java Developer

MCS Group | Your Specialist Recruitment Consultancy This range is provided by MCS Group | Your Specialist Recruitment Consultancy. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base Pay Range MCS Group is thrilled to partner with ...

Java Developer

About the Role You'll be working on the backend of systems that move money; payment processing engines, merchant integration services, and the microservices that orchestrate transactions across multiple payment rails. This means designing APIs that handle edge cases gracefully, building services ...

Java Developer

Salary: £30,000 - 60,000 per year Requirements I am looking for a Java Developer with at least 5 years of hands‑on experience in Java development. You should have strong expertise in multi-threading, web application development, and testing frameworks. Familiarity with DevOps too ...

Java Developer

Job title: Java Developer - Regulatory Reporting (Capital Markets) Location: Belfast, Northern Ireland Work Mode: Hybrid (3 Days Onsite) Duration: Contract until Feb 2027 Must-Have Skills 5+ years of Java Development experience Strong hands-on experience w ...

Java Software Engineer

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 exciting ...

Java Developer (AVP)

Job Overview 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 sh ...

Software Engineer (Java)

Want to build products that actually scale and see the impact of your work quickly? My client is looking for a mid-level Software Engineer to join a collaborative platform engineering team based in Belfast . This role sits right at the core of their ...

Junior Java Engineer

Consultant - Junior Java Engineer - DE - TC - UKI - Belfast Location: Belfast Other locations: Primary Location Only Salary: Competitive Date: 27 May 2026 Job description Requisition ID: At EY, we’re all in to shape your future with confidence. ...

Senior Java Developer

Senior Java Developer | Belfast | £65,000-£80,000 Senior back‑end developer role within a newly established Belfast trading technology hub. Small founding team of 4 engineers; site lead already in place (placed by Ocho). Ground‑floor opportunity to shape engineering culture and grow with the team ...

Java Developer (AVP)

## Java Developer (AVP)Applyremote type: Hybridlocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: **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 a ...

Java Developer (AVP)

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. <h3 ...

Senior Java Developer

2 days ago Be among the first 25 applicants MCS Group | Your Specialist Recruitment Consultancy provided pay range This range is provided by MCS Group | Your Specialist Recruitment Consultancy. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more ...

Principal Java Engineer

Principal Java EngineerUp to £120,000Candidates must be based in Belfast All applications not based in Belfast will be disregardedDo you enjoy shaping the technical direction of complex, large-scale systems - and doing it with modern Java at the highest level?My client is ...

Backend Java Developer

Qualifications Experience with Java NIO components like Channels Buffers and Selectors is expected Expert knowledge of FIX protocol Market Connectivity and Low latency programming is a must Very strong in Java and Spring Boot based application development Experience with m ...

Senior Java Developer

Main Purpose and Responsibilities As a Senior Java Developer at Kainos, you’ll be responsible for developing high‑quality solutions which delight our customers and impact the lives of users worldwide. It’s a fast‑paced environment so it is important for you to make sound, reasoned decisions. You’ ...

Principal Java Engineer

Principal Java Engineer Belfast city centre, hybrid (3 days onsite) Up to £90,000 salary We are working with a scaling cybersecurity engineering team led by one of Northern Ireland's most respected technical architects. Their client list reads like a who's who of the Fortune ...

Senior Java Developer

Join Kainos and Shape the Future At Kainos, we’re problem solvers, innovators, and collaborators—driven by a shared mission to create real impact. Whether we’re transforming digital services for millions, delivering cutting‑edge Workday solutions, or pushing the boundaries of technology, we do it ...

Staff Java Developer

Staff Java / C++ Engineer (Low Latency) Belfast, Northern Ireland (Hybrid – onsite Tuesdays, Wednesdays, Thursdays) Salary: Up to £120K + benefits About the Company Our client is building a premier prediction market platform in partnership with two of the most respected ...

Senior Java Engineer

Do you enjoy designing and building scalable backend systems in the cloud - with Java at the core and AWS powering it all? My client is looking for a Senior Java Engineer to join a highly capable engineering team working on modern, cloud-native systems. This role offers real ownersh ...

Senior Java Developer

Position Description: At CGI, we help some of the world’s most recognised organisations solve complex challenges through innovative technology and expert delivery. As a Senior Java Developer, you’ll play a pivotal role in designing and delivering scalable software solutions that drive mea ...

Senior Java Engineer

Do you enjoy designing and building scalable backend systems in the cloud - with Java at the core and AWS powering it all?My client is looking for a Senior Java Engineer to join a highly capable engineering team working on modern, cloud-native systems. This role of ...

Java Developer (AVP)

**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 Ov ...

Senior Java Software Engineer

Ocho Belfast, Northern Ireland, United Kingdom Senior Java Software Engineer This range is provided by Ocho. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. (New Cloud Security company that recently set up in Belfast with 14 ...

Experienced Backend Java Developers

Overview 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 ...

Lead Java Developer (VP)

Overview Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, includi ...

Experienced Backend Java Developers

## Experienced Backend Java DevelopersApplyremote type: Hybridlocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: ***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 tri ...

Software Engineer, Java Backend

About the job Software Engineer, Java Backend Job Description: Location: On-site, Hybrid. Start date: As soon as possible. Languages: Fluent in English. Join the Mineo Team Were Hiring! At Mineo, we are creating the future of recruitment with an innovative ...

Senior Java Developer (AVP)

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 Overv ...

Java Software Engineer, £60k

The Opportunity You will play a key role in designing, developing, and maintaining critical backend services that support enterprise‑scale platforms. Working within a highly collaborative engineering team, you will contribute to major backend modernisation initiatives spanning application ...

Java Developer (Career Progression)

Java Developer At a GlanceJava developer role open to junior through to mid-level candidatesCore stack: Java, with exposure to modern frameworks and toolingBelfast-based hybrid working£35,000 to £45,000Exclusive to ...

Java Developer (Career Progression)

Java Developer At a Glance Java developer role open to junior through to mid-level candidates Core stack: Java, with exposure to modern frameworks and tooling Belfast-based hybrid working £35,000 to £45,000 Exclusive to Ocho People - this ro ...

Experienced Backend Java Developers

Overview 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 ...

Senior Java Software Engineer

Ocho Belfast, Northern Ireland, United Kingdom Senior Java Software Engineer This range is provided by Ocho. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. (New Cloud Security company that recently set up in Belfast with 14 ...

Experienced Backend Java Developers

Citi Belfast are hiring for Experienced Backend Java Developers with a skillset ranging from Assistant Vice President to Senior Vice President responsible for contributing to a variety of development activities. The overall objective of these roles is to assist/lead in applications systems development, analys ...

Lead Java Developer (VP)

**Overview** Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including ...

Experienced Backend Java Developers

**_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 markets, we bu ...

Senior Data Architecture Lead for Distributed Systems

Jentic Technology Limited is seeking a Palantir Technical Architect to design and deliver quality data solutions. You will work closely with Solution Architects to integrate technical components while upholding standards. The role demands substantial experience in architecting data-intensive applicatio ...

Senior Software Engineer — Architect, Scale & Mentor

A leading software development firm is seeking a Senior Software Engineer to architect and maintain enterprise-grade software. The role requires over 6 years of experience, proficiency in Java or Python, and expertise in cloud infrastructure and microservices. You will lead code reviews, mentor junior engineers, ...

Architect

Job Description: Architect (Multi-Cloud & AI Platforms) Location: Remote Clearance: SC Clearance required Rate : Inside IR35 4 months contract (with potential for an extensi ...

Architect

Senior Architect & Senior Architectural TechnologistWe’re seeking an experienced, ambitious Senior Architect and Senior Architectural Technologist to join our award-winning practice and play a key role in shaping high-quality, design-led projects.This is an exciting opportunity for confident ...

Java Technical Specialist (Low Latency)

Java Technical Specialist (Low Latency) At a Glance Senior individual contributor role in a high‑growth prediction markets trading firm Core stack: Java, Kafka, Aeron, FIX Protocol exchange and clearing infrastructure Salary: £80,000 – £95,000 + highly attracti ...

Software Engineer Java/JavaScript/Python

MCS Group is delighted to be partnering with a global technology organisation as they expand their Cyber Security Engineering teams with the addition of multiple Software Engineers across varying levels of experience. This is an opportunity to join a modern, cloud-first engineering environm ...

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    Java Architect Jobs in Belfast Job Search Guide, Trends and Insights