java software developer jobs in London

Kotlin/Java Backend Developer 24 month contract Inside IR35 – Paying up to £50 per hour via umbrella. Location: Hybrid – working in London and Burgess Hill. We are currently looking for a Kotlin/Java Backend Developer who has a proven track recording working with Java 17, Swift and Kotlin. You will be building the mobile application service layer...

Vacancy detailSenior Software Engineer GBPHybrid WORKINGLocation: Central London, Greater London – United Kingdom Type: PermanentSenior Software Engineer (Java/Fullstack)UK wide – Occasional Travel Monthly 50,000 - 70,000Currently working with a multinational professional services and technology organisation who are in search of Software Engineers (Java...

Peel Hunt LLP is seeking an enthusiastic IT Developer with strong core Java skills to work across a diverse technology stack supporting real-time equity trading, programming workflows and data analysis.You will join a six-person Development team reporting to the Head of Development, collaborating with TechOps, Data Technology and Analytics, and Systems...

Senior Java Software Engineer OpportunityA Senior Java Software Engineer opportunity in a growing team who are upgrading and modernising their tech stack. The business is well established across the UK and the team require experienced software engineers who can demonstrate strong Java and Spring backgrounds.The role offers a hybrid working structure (two...

Java Engineer – Institutional Trading | London | HybridI’m working with a leading global fintech that is expanding its institutional trading technology team and looking for a Java Engineer to help build a new generation of high-performance trading APIs.You’ll join a team responsible for connectivity between institutional clients and global markets,...

Job DescriptionWe have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.Job DescriptionWe have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the ETF Technology team in EMEA, you are...

Junior Java Quant Engineer – Investment Management100k, 30% Bonus, 3 days a week in the office.Quant Capital is urgently looking for a Junior Quant Developer with Core Java skills to join our high profile client.Our client is a well known Systematic Trading Hedge Fund. They like technology especially the opensource variety as well as scalability and robust...

London, United Kingdom | Posted on 04/08/2026Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens.With a strong commitment to user-centred design and agile delivery, we...

iSAM is an innovative, financial technology firm specialising in quantitative trading, comprised of iSAM Funds and iSAM Securities.iSAM Securities regulated by the FCA, SFC, and CIMA registered, is a leading algorithmic trading firm and trusted electronic market maker, providing liquidity, technology and prime services to institutional clients and trading...

Location: LondonContract: 12 monthsWorking Pattern: Hybrid - 3 days per week onsitePositions: 3We are recruiting experienced Senior Java Low-Latency Developers to design and develop high-performance trading, exchange connectivity and Direct Market Access platforms.This is a hands-on senior engineering role focused on building resilient, scalable and...

Onyx-Conseil in London is seeking a Junior Software Developer to work on analytical tools for the retail banking sector. You'll code in Delphi and other OO languages such as C++, Java, and C#. The role offers exposure to a broad project lifecycle and cross-functional collaboration.Experience with RAD Studio or Visual Studio is beneficial. A sound background...

About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we don’t...

We power people's progress.At Preply, we're all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it's creating real impact.We've just reached unicorn status with a $150M Series D,...

DRW Holdings, LLC. invites talented students to join its Software Developer Intern program in London for a 10-week summer internship. You will build advanced trading and risk applications under the guidance of senior technologists.You’ll work on meaningful projects, collaborate with developers, quantitative traders, and researchers, and participate in...

Company Description Wise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money. As part...

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Equity Derivatives Group you will join our agile team creating, transforming, and supporting our trusted market-leading technology products using modern technologies and industry best...

Raytheon UK is seeking a Senior Software Engineer in London to design and build enterprise software in an agile, cross‑functional team. The role requires active eDV clearance and onsite work with potential remote/hybrid options depending on role and site requirements.Applicants should have strong Java/Spring Boot experience, modern frontend skills...

A London-based trading company is looking for an experienced Java Engineer to join their technology team on an initial 6-month contract.This role is well suited to a backend-focused engineer who enjoys building robust, scalable Java services using modern frameworks, working closely with product, trading, and engineering teams.The RoleDesigning and developing...

Senior Java Developer (Low-latency) - Energy Trading - Contract - Outside IR35 An energy trading company are looking for an experienced software engineer to join their Trading Technology team and help build the core platform that powers their trading business. This role focuses on the foundational components of the trading stack, including: Venue and...

Senior Java Full Stack Engineer Salary:£60,000-£70,000 plus benefits, perks, and healthcare options! Job type:Permanent | Hybrid (1-2 days per week) | Occasional travel to client sites Security Clearance:Must be SC eligible Base locations:London, Bristol, Manchester or Glasgow Overview We're looking for a Senior Java Full Stack Engineer with strong backend...