java developer permanent jobs in Slough

Lead Java Developer This is a hybrid role requiring 1/2 days per week in their London office. This opportunity does not provide sponsorship. La Fosse are partnering with a market leading InsurTech provider who are in the market for a skilled Senior Java Developer to join the core software engineering team. This role provides a unique opportunity to lead technical initiatives, mentor team...

Job Title: ICON Payment Framework (IPF) Java Developer Location: Manchester Duration: 31/12/2025 Rate: £500 per day INSIDE IR35 We are looking for a highly skilled ICON Payment Framework (IPF) Developer with strong Java expertise to join our Payments Technology team. The successful candidate will play a key role in designing, developing, and maintaining payment processing solutions using the...

Java Developers - (SaaS) We are working with a leading SaaS company, who specialise in building AI Products. They are looking for a Java Developers, ideally with some React.JS to join their team Year's of experience - 1-5 years Stack; Java 17/21 AWS TDD CI/CD React.js/TypeScript This role is 3 days a week in the office (London) and 2 days WFH 80k + Pension 2 stage interview process

You will work closely with quantitative researchers, traders, and infrastructure teams to deliver software that operates at microsecond latencies, scales globally, and directly contributes to our competitive edge in the markets. Key Responsibilities - Design, develop, and maintain low-latency, high-throughput trading platforms in Java.

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and...

Role: Front Office Java Developer Salary: Up to £130k base salary + Bonus + Package Location: London (Hybrid) Skills Required: Extensive Java experience needed (ideally with versions up to 21) This firm is an elite investment institution that uphold extremely high tech standards. They are made up of some exceptionally talented individuals who above all are passionate about using the latest...

You will play a key role in designing, building, and maintaining both the front-end and back-end components of high-performing web applications using Java, Spring Boot, and modern front-end frameworks. This is a great opportunity to work on large-scale, cloud-hosted systems that require performance, scalability, and innovation.

Lead Engineer – Investment Finance (Java & Cloud) City of London | 💼 £145,000–£155,000 | 🏢 4 Days in the office We’re working with a prestigious investment finance organisation in the heart of the City of London, seeking a dynamic and technically astute Lead Engineer to drive innovation across both cloud infrastructure and application engineering. This is a hands-on leadership role for someone...

Senior Java Developer | Low Latency | London Our client is a specialist engineering consultancy known for solving some of the most demanding performance challenges across financial markets and technology. Their teams design, build, and optimise high-throughput, low-latency systems used by global institutions where reliability and speed are critical. They are now looking for exceptional Java...

We have a new Contract Senior Java Developer position available with a European Investment Bank, to work on e-FX Front-Office Algo Trading projects. This is a Low Latency, Java, Algo, FX, multithreading developer role (not really web). London based, Hybrid working. 12 months initial assignment. The job: - IT Low Latency e-FX Java Developer - 1 year contract with potential for extensions -...

Do you have 1 - 3 years commercial experience developing software with Java? Looking to join a company when you can make a real impact? 🚀 Java Software Developer – SaaS Solutions 🚀 💲 Salary – up to £55k + bonus 📍 Location – hybrid working 2 days a week in modern London office We have a fantastic brand-new opportunity for a Java Software Developer to join a fast-growing London-based...

About Apexon: Apexon brings together distinct core competencies – in AI, analytics, app development, cloud, commerce, CX, data, DevOps, IoT, mobile, quality engineering and UX, and our deep expertise in BFSI, healthcare, and life sciences – to help businesses capitalize on the unlimited opportunities digital offers. Our reputation is built on a comprehensive suite of engineering services, a...

Senior Java Developer - Hybrid (Outside IR35) We are looking to hire a hands-on Senior Java Developer to join our UK&I Technology team. In this role you will design, build, deploy software that is used at the forefront of the television broadcasting industry, that reaches millions of customers worldwide. As a Senior Java Developer you will: - Drive the development and maintenance of...

Job Title: AVP – Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to £120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. You’ll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React-based UIs. The work is a blend of Python and...

Senior Java Developer – FX Algorithmic Trading | £825/day Inside IR35 | London | 3 Days Onsite Our client, a global leader in the financial services industry, is seeking a highly skilled Senior Java Developer to join their FX Automated Client Execution team. This is a 6-month contract based in London, requiring 3 days per week onsite. You’ll work directly on the trading floor alongside quants...

Duration of assignment: -1 year (potential prolongation) Onsite requirements: 3 days/weekly Required skills and qualifications - Extensive experience in kdb+/q, including the design of large kdb+ systems. - Strong understanding of computer science fundamentals and modern software development practices. - Experience with development in a Unix and/or Linux environment. - Core Java development...

We’re working with a leading global investment bank expanding its Front Office FX eTrading team. This is a greenfield build of a next-generation trading platform that is performance-critical, front-office facing, and built for scale and speed. You’ll be joining a team of exceptional technologists delivering cutting-edge solutions across FX Spot, Forwards, and Pricing, with exposure to Rates and...

You will join a small team building a greenfield pricing engine. You'll be doing everything from building the infrastructure itself to touching/scaling the models. You'll be architecting, building and then supporting the solution from a very early stage and working directly with the Traders that use it.

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and...

🖥️ Java Developer 📍 Location: London (Hybrid) 💷 Compensation: Up to £170,000 + Bonus + Comprehensive Benefits 🔍 The Role Join a leading FinTech innovator as a Java Engineer and help build their next-generation, low-latency trading platform. This is a hands-on role in a high-performance, real-time environment where every millisecond matters. Collaborate with top-tier engineers and industry...