Contract Java Developer jobs in Belfast

Senior Software Developer - Java / Python with Delphi We’re looking for an experienced Software Engineer (Java/Python) to join a high-profile government project focused on modernising and integrating complex systems within a secure environment. You’ll work across backend development, integration and automation – with occasional support for legacy Delphi components as part of wider platform...

Java Developer Hybrid (Belfast) | 6-Month Contract | Inside IR35 Our client, a leading organisation within the financial services sector, is seeking an experienced Java Developer to join their Belfast-based technology team on an initial 6-month contract (Inside IR35). This is an excellent opportunity to work on high-performance, data-driven applications within a fast-paced enterprise...

Senior Java EFX Platform Developer Location: Fully Remote (UK-based) Contract: 12 Months (likely extension) Industry: Investment Banking / FX E-Trading The Opportunity We're partnering with a leading investment bank on a major greenfield build - a brand-new, in-house FX E-Trading platform. This multi-year programme is at an early stage, offering the chance to help shape architecture,...

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 We're looking for multiple talented engineers Server Side , to join one of our high-impact teams...

Java Developer – Contract – Remote – £500/pd Outside IR35 – 6 months (likely 12 months) I’m working with a consultancy who are looking to hire a Java Developer (SC Cleared) on a contract basis for an initial 6-month assignment, expected to extend to 12 months. The role is fully remote, supporting a major central government project. Skills required: - Strong Java and Spring Boot development...

Role – java tech lead Location – UK remote Mode: B2B Contract Core Skills Required: - Core Java - OOPs Concepts - Microservices / REST Services - Spring Framework (Spring 11/17) - Terraform / Ansible (Knowledge/Understanding) - UI Development (Angular) - Database Skills – SQL - Deployment Tools – Jenkins - Good Design & Architectural Approach

Job Description Senior Java Engineer - Contract Location: Remote (Northern Ireland) | Contract: Outside IR35 | Duration: 3/6 months We're looking for a Senior Java Engineer to join an inovative local client on a high-impact project. This is a fully remote role (with occasional office meetings) offering the chance to work on innovative solutions in a collaborative environment. What You'll...

Location: Mostly remote (with one day per month in Milton Keynes) Salary: £75,000 - £80,000 Contract type: Full time, permanent Our client is seeking a Lead Software Developer to join their engineering team. This is an opportunity to take on a pivotal technical leadership role within a collaborative, Agile environment, working alongside colleagues across multiple regions. If you are passionate...

You will play a crucial role in designing, developing, and implementing identity and access management solutions using the ForgeRock Identity Platform Job Responsibilities/Objectives - Working experience in Java, J2EE, OpenAM, OpenDJ and OpenIDM - Forgerock IAM skills. Experience in Groovy Scripting.

Permanent opportunity Hybrid role 2-3 days a week in Belfast Competitive Salary (+ Performance related bonuses) Please note this role requires you to gain a Security Clearance Job Description We re looking for a seasoned technical leader who blends deep hands on engineering experience with strong strategic and architectural insight. In this role, you ll guide multidisciplinary teams in...

Technical Lead Permanent opportunity Hybrid role 2-3 days a week in Belfast Competitive Salary (+ Performance related bonuses) Please note this role requires you to gain a Security Clearance Job Description We re looking for a seasoned technical leader who blends deep hands on engineering experience with strong strategic and architectural insight. In this role, you ll guide multidisciplinary...

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 further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over...

Senior Full Stack Software Engineer - AI Enablement Team Location: UK Remote Contract Duration: 6 months Start Date: Ideally by 1st December 2025 Position Overview: We are assembling a high-impact AI Enablement Team focused on accelerating software development through the strategic use of AI tools and pipelines. Unlike traditional AI teams, this group will not be building models from scratch....

Oracle Retail Techno-Functional Consultant - 12-month contract – UK Based - Remote Lorien is recruiting for an Oracle Retail Techno-Functional Consultant with background of technical and functional experience of Oracle Retail technology to join the global team of our client supporting their Oracle Retail suite applications including Stock Ledger, Sales Audit and Markdowns. Some of your...

Technical Lead Permanent opportunity Hybrid role 2-3 days a week in Belfast Competitive Salary (+ Performance related bonuses)*Please note this role requires you to gain a Security Clearance Job Description We’re looking for a seasoned technical leader who blends deep hands on engineering experience with strong strategic and architectural insight. In this role, you’ll guide multidisciplinary...

Senior Backend Engineer UK Remote 6 Month Contract A fantastic contract role has opened up for a highly skilled Senior Backend Engineer with strong expertise in Python or Java. This is an exciting chance to join a leading technology company known for its high engineering standards and innovative approach to distributed systems. In this position, the Senior Backend Engineer will play a central...

Role: Senior Fullstack Developer Start Date: ASAP Contract Length: 12 Months (extensions possible) Work Location: Remote, Occasional Paid Travel to UK Office IR35 Status: Inside IR35 Security Clearance: DV Cleared Joining a critical public sector programme, you’ll play a key role in ensuring service resilience, stability, and compliance, while contributing to new feature development. This...

Freelance Remote Opportunity: Tech Lead – GenAI Code Initiatives We’re seeking an experienced Tech Lead / Senior Software Engineer to spearhead our GenAI Code Initiatives. This is a hands-on, freelancing remote role focused on evaluating, improving, and advancing AI-driven code generation systems. Key Responsibilities - Code Generation & Refinement: Write, evaluate, and refine complex code...

Site Reliability Engineer UK (Remote) 6 Month Contract An excellent contract opportunity for a skilled Site Reliability Engineer to join a forward-thinking technology company. This is a trusted, high-impact engineering environment where a Site Reliability Engineer will be given real ownership, solving complex problems and building systems that directly accelerate software delivery at...

You will have integrated with several upstream APIs - for example, a service that consolidates CI/CD status across multiple pipelines, or an aggregation service for production error metrics.

You will have bought additional technologies online (e.g., Kafka, Postgres, etc.) as needed to realize the architectural vision, meeting the requirements agreed upon by month 3.