17 java engineer jobs found

SC/DV Cleared Java Software Engineer Outside IR35 £450 per day Contract Full remote We're looking for an experienced Java Software Engineer to join an agile development team working on complex, high-security software solutions. You'll be involved throughout the full software development lifecycle, from requirements gathering and design through to deployment, testing, and support click apply for full job details

SC/DV Cleared Java Software Engineer | Outside IR35 | £450 per day | Contract | Full remote We're looking for an experienced Java Software Engineer to join an agile development team working on complex, high-security software solutions. You'll be involved throughout the full software development lifecycle, from requirements gathering and design through to deployment, testing, and support. Responsibilities Collaborate with stakeholders to understand requirements and develop solutions Design, build, test, and maintain high-quality software Troubleshoot and resolve complex technical issues Develop automated tests including unit, acceptance, and performance testing Support CI/CD pipelines and deployment activities Contribute to code reviews, planning, and estimation sessions Work closely with DevOps and engineering teams in an agile environment Key Skills & Experience Strong Java development experience Agile development mindset with experience in: TDD / BDD...

SC/DV Cleared Java Software Engineer Outside IR35 £450 per day Contract Full remote We're looking for an experienced Java Software Engineer to join an agile development team working on complex, high-security software solutions. You'll be involved throughout the full software development lifecycle, from requirements gathering and design through to deployment, testing, and support. Responsibilities Collaborate with stakeholders to understand requirements and develop solutions Design, build, test, and maintain high-quality software Troubleshoot and resolve complex technical issues Develop automated tests including unit, acceptance, and performance testing Support CI/CD pipelines and deployment activities Contribute to code reviews, planning, and estimation sessions Work closely with DevOps and engineering teams in an agile environment Key Skills & Experience Strong Java development experience Agile development mindset with experience in: TDD / BDD...

SC/DV Cleared Java Software Engineer Outside IR35 £450 per day Contract Full remote We're looking for an experienced Java Software Engineer to join an agile development team working on complex, high-security software solutions. You'll be involved throughout the full software development lifecycle, from requirements gathering and design through to deployment, testing, and support click apply for full job details

SC/DV Cleared Java Software Engineer | Outside IR35 | £450 per day | Contract | Full remote We're looking for an experienced Java Software Engineer to join an agile development team working on complex, high-security software solutions. You'll be involved throughout the full software development lifecycle, from requirements gathering and design through to deployment, testing, and support. Responsibilities Collaborate with stakeholders to understand requirements and develop solutions Design, build, test, and maintain high-quality software Troubleshoot and resolve complex technical issues Develop automated tests including unit, acceptance, and performance testing Support CI/CD pipelines and deployment activities Contribute to code reviews, planning, and estimation sessions Work closely with DevOps and engineering teams in an agile environment Key Skills & Experience Strong Java development experience Agile development mindset with experience in: TDD/BDD...

Senior Java Developer / AI Engineer - Design & Build Payment Product / Fintech / Banking. Spring Boot, Claude/Codex also essential. ANY PAYMENT PRODUCT CONSIDERD from Current Account OR SAVINGS OR ISA's OR Fixed Term Deposits, Lending etc. £600-£650/DAY OUTSIDE IR35 PAY. Our Fintech Challenger Bank client based in Central London seeks a dynamic, eager to learn and technically astute Java Software Engineer who has extensive experience in Designing & Building a Payment Product *NOT PAYMENT PLATFORM* so the ideal candidate will come from for e.g. a Challenger Bank or Fintech Payment Product Company. STRONG skills in Java, Spring Boot, AI (Claude or Codex), working in a Fintech Payment domain. YOU WILL NOT BE CONSIDERED IF YOU DO NOT HAVE FINTECH & DESIGN & BUILD PAYMENT PRODUCT EXPERIENCE WITH JAVA, SPRING & STRONG AI! Our client is hiring a hands-on SENIOR Software Engineer / Java Developer to support delivery and development of Savings products...

Software Engineer (Java/AWS/Kafka/Cloud Architecture) Location: Leicester (onsite, 5 days/week preferred) Contract: 6 months + Start Date: ASAP Day Rate: £400/day (Outside IR35) Role Overview A skilled Software Engineer is required to support a large-scale automation and warehousing programme. The role combines strong hands-on Java development with cloud engineering responsibilities across AWS and Real Time data streaming using Kafka. The engineer will contribute to the full software lifecycle, including design input, development, code reviews, and delivery of scalable, secure, and high-performance distributed systems within an Agile environment. Key Responsibilities Design, develop, and maintain Back End services using Java Build and deploy cloud-native applications on AWS Implement Real Time data streaming and event-driven architectures using Kafka Contribute to system design and technical solution development Perform code reviews and ensure high engineering...

Java / Microservices / API design / LLMs / AI / Claude Code / Copilot Company:  Financial Services Location:  London - Hybrid 3 days per week Rate:  £575 IR35:  Outside CORE BANKING AND TRADING SYSTEMS EXPERIENCE ESSENTIAL Join a newly formed Service Modernisation & AI team driving AI-first software development in financial services. This is a hands-on role modernising high-impact legacy services while building AI-powered engineering workflows. What You’ll Do Modernise critical legacy Java services using AI-driven analysis and refactoring Apply migration patterns (e.g. strangler fig) to deliver clean, modern APIs Ship improvements in fast cycles with measurable gains in performance and reliability Build AI-powered tooling, including MCP servers and AI-assisted CI/CD pipelines Demonstrate how AI transforms developer productivity and code quality What We’re Looking For 6+ years’ backend engineering experience (Java)...

C + + Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working Up to £750 per day (Outside IR35) We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C + + to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It 's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C + + systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems,...

Senior Full-Stack Software Engineer Financial Services | Outside IR35 | Rate £650/day | Duration 6–12 months | Fully Remote | Outside IR35 | UK Candidates Only | Interviews take place Next Week | 2-Stage Interview We are working with a leading financial services organisation to place an experienced Senior Full-Stack Software Engineer on an initial 6–12 month contract engagement. This is a fully remote role open to UK-based candidates only, sitting outside IR35 at a competitive rate of £650 per day. You will join an established engineering team and take ownership of the design, development, and delivery of full-stack features across modern web platforms. The client values pragmatic engineers who can operate with autonomy, engage directly with stakeholders, and drive quality outcomes in a fast-paced environment. While this role sits within a financial services organisation, the client is actively open to exceptional engineers from other industry backgrounds what...

Senior Data Engineer - Contract - Outside IR35 Hybrid working, Central London Up to £650 per day FinTech | London We’re partnered with a fast-growing FinTech at the heart of Private Market Investments, looking to scale their Data function. What They’re Looking For Strong grounding in computer science fundamentals and data modelling Commercial experience with more than one programming language (Python, Scala, Java, C++) (and strong SQL skills) Experience with streaming and data processing (e.g. Kafka, Spark, Athena or similar) Hands-on experience with Azure Familiarity with data containerisation, ingestion, and orchestration Clear communicator who can explain technical decisions to non-technical stakeholders Why Join? Work on genuinely difficult engineering problems Exposure to large, complex systems in real production environments A culture built by engineers, for engineers Hybrid working, Central London Up to £650 per day If you’re...

🚀 Senior Front-End Engineer – Investment Banking | Contract Upto £800 p/d (Outside IR35) | London / Hybrid (1 Day/Week in Office) We are partnering with a global investment bank to hire a Senior Front-End Engineer to join a flagship team delivering a next-generation, single-page application (SPA) platform for high-performance derivatives trading. This is a high-profile role on a mission-critical, front-office system with exceptional technical standards. You’ll work at the cutting edge of financial technology, contributing to a modern, reactive web platform used across trading desks. This is not your typical enterprise UI – it’s fast, data-intensive, and built to scale with real-time demands in a trading environment. 💼 The Opportunity Collaborate with elite engineers on a SPA used across the investment bank for derivatives trading. Build elegant, high-performance UIs with real-time data updates and functional programming paradigms. Shape a front-end...

C + + Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working Up to £750 per day (Outside IR35) We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C + + to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It 's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C + + systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems,...

Overview A global enterprise organisation is looking to hire a Full Stack Engineer / Technical Lead to drive the design and delivery of an internal AI-enabled platform focused on workflow automation and support operations. This role blends hands-on engineering with technical leadership, owning delivery across frontend, backend, APIs, and AI-driven workflows at scale. The Opportunity You will lead the build of an end-to-end internal platform used by employees to manage workflows, automate tasks, and enhance operational efficiency. This includes designing and implementing AI-powered workflows (e.g. automated support, task resolution, and intelligent routing) integrated with enterprise systems. Key Responsibilities Technical Leadership & Architecture Define end-to-end architecture across frontend, backend, APIs, and AI-driven workflows Make architectural decisions aligned with enterprise standards and best practices Mentor engineers and...

Scrumconnect Consulting is a leading digital transformation consultancy delivering innovative solutions across the UK public sector. We specialise in Agile delivery, digital services, cloud transformation, data, and user-centred design, helping organisations build scalable and impactful digital products and platforms. We are currently seeking an experienced Senior Data Engineer / Architect to support the design of the WebCAF database, risk reporting tools, and integration services within a major digital transformation programme.   Job Summary We are looking for an experienced Senior Technical Architect with strong expertise in GDS (Global Distribution Systems) and enterprise application architecture. The ideal candidate will be responsible for designing scalable technology solutions, leading architecture discussions, and driving digital transformation initiatives within the travel domain. The candidate should possess deep knowledge of travel technologies,...

C++ Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems, Interfaces and tools to historical market data simulations to increase research productivity....

Engineering Manager - £580 to £585 per day outside IR35 - Hybrid (3 days per week in the office) Please note: This is a contract role with the expectations that candidates will be in the office 3 days per week in London. La Fosse have partnered with a consulting business to recruit an experienced Engineering Manager into their established team. This role is suited to a hands-on leader with a strong background in Java/JVM environments, driving the delivery of scalable microservices. You’ll champion automation and DevOps practices, working across CI/CD pipelines, testing, and cloud-native platforms to deliver high-quality software at scale. Key Requirements: Strong commercial experience in Java/JVM environments, with the ability to lead and mentor engineers Experience designing and delivering microservices-based architectures Advocate of DevOps practices (“you build it, you run it”) Solid understanding of CI/CD pipelines, including build, test, and...