1 to 25 of 39 Permanent Java Developer Jobs in London

Senior Java Developer with microservices architecture experience is sought on a fully remote basis by a market leading financial services organisation with a technical hubs across the UK. Working at the forefront of AI driven financial technology this Senior java Developer will play an integral role … microservices architecture to deliver robust, highly scalable solutions used by millions daily. With a real commitment to employee wellbeing and personal development this Senior Java Developer can expect long term commitment to remote, flexible working and a clearing defined progression path with 4 promotion opportunities a year alongside ...

Description Senior Java Developer with microservices architecture experience is sought on a fully remote basis by a market leading financial services organisation with a technical hubs across the UK. Working at the forefront of AI driven financial technology this Senior java Developer will play an integral … microservices architecture to deliver robust, highly scalable solutions used by millions daily. With a real commitment to employee wellbeing and personal development this Senior Java Developer can expect long term commitment to remote, flexible working and a clearing defined progression path with 4 promotion opportunities a year alongside ...

Description Java Developer - Investment Banking (Contract) Location: London (Hybrid)Contract Length: 6 MonthsDay Rate: Competitive Start Date: ASAP Overview We are partnering with a leading investment bank looking to onboard an experienced Java Developer to join a front office trading technology team on an initial … Linux-based environment Collaborate within Agile teams, contributing to design, code reviews, and best practices Required Skills & Experience Strong hands-on experience with Java (Java 17 preferred) Proven background in investment banking or capital markets Solid experience with trade processing systems Exposure to or direct experience with Trade ...

Principal Java Developer/Consultant (Java Spring Boot AWS) London/WFH to £120k Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. What ...

Java Quantitative Developer London – Hybrid Java, Low Latency, Algo Trading, Pricing, Hedging, FX/Crypto, DeFi, AWS The company This is an unmissable opportunity for an experienced Java Quantitative Developer to join the crypto trading desk of one of the leading institutional digital asset firms … markets. Build pricing logic and hedging frameworks that drive the desk's market making activity. Translate trader and quant ideas into efficient, production-grade Java code. Optimise existing trading systems for speed, reliability and scalability. Integrate new data sources and ensure data integrity for accurate model input. Monitor ...

Role: Front Office Java Developer Client: Elite Investment Institution Compensation: Up to £130k Base Salary + Bonus + Package Location: London (Hybrid) Overview This firm is an elite investment institution that uphold extremely high tech standards. They are made up of exceptionally talented individuals who are passionate about … Role They will align you with the best team suited to your skillset and interests. You will be working with the latest versions of Java (ideally up to version 21), directly with traders and quants to build high performance pricing and analytics tools from scratch. This is a greenfield ...

# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex … capabilities, and staying updated with emerging technologies are essential for driving innovation and ensuring seamless application performance.### Key Responsibilities* Design, develop, and implement complex Java-based software solutions effectively.* Collaborate with team members to define project requirements accurately.* Optimize application performance for scalability, security, and efficiency consistently.* Troubleshoot ...

Description About The Role FDM is a global business and technology consultancy seeking a Full Stack Java Developer to work for our client within the Fintech sector. This is initially a 6 month contract with the potential to extend and will be a hybrid role that will … based in London. Our client is seeking to onboard a Java engineer with predominantly full stack experience and a desire to join an established agile squad, to deliver new requirements and fixes for client projects. This individual will take on complex stories required for implementing the international Processing Engine ...

Description Software Developer (Java/Oracle) - SC ClearedLocation: London or Leeds (Hybrid - 50% onsite)Duration: 6 monthsClearance: SC Cleared (an active SC Clearance is required) Our high profile Banking client is looking for an experienced Software Developer to join a collaborative working group supporting a critical payments … quality, performance, and maintainability Support and troubleshoot production environments Quickly learn and adapt to the RTGS2 ecosystem Essential Skills & Experience Oracle PL/SQL Java Spring Boot Kafka Hibernate Proven track record in code delivery and production support Strong organisational skills and self-motivation High level of integrity ...

Hopeghospital in Greater London is seeking a Senior Java Developer to design and maintain high-quality Java applications. The role involves collaborating with cross-functional teams to deliver scalable solutions, optimizing performance, and mentoring junior developers. Candidates must have strong proficiency in Java, Spring, Hibernate ...

Core Java Developer - Low Latency Trading Technology Location: United Kingdom (Remote) We're working with a high-performance financial technology business whose software sits directly in the execution path of real-time electronic trading. This is not a Spring Boot microservices environment. This is an opportunity … particularly interested in engineers who have built systems from the ground up and who understand what happens underneath the frameworks. Key Requirements: * Strong Core Java* Multi-threading, concurrency and locking* Memory management and garbage collection optimisation* Low-latency system design* FIX Protocol* Trading technology experience* Smart Order Routing, market ...

Description Core Java Developer - Low Latency Trading Technology Location: United Kingdom (Remote) We're working with a high-performance financial technology business whose software sits directly in the execution path of real-time electronic trading. This is not a Spring Boot microservices environment. This is an opportunity … particularly interested in engineers who have built systems from the ground up and who understand what happens underneath the frameworks. Key Requirements: * Strong Core Java* Multi-threading, concurrency and locking* Memory management and garbage collection optimisation* Low-latency system design* FIX Protocol* Trading technology experience* Smart Order Routing, market ...

Java Python Developer - Equity derivs Hedge Fund £200,000 Job Description Quant Capital is urgently looking for a Java Python Developer to join our high profile client in their main development team. Our client is one of the largest Quant Investment managers globally, with around About … technology and the possibility of making serious money doing something you are passionate about. My client is based in London. Skills Needed Java C++ Erlang F# Scala Haskell Django Python Twisted NoSQL Data Science #J-18808-Ljbffr ...

Description I am currently working with a London-based Financial Services client who are actively seeking a Principal Java Developer with extensive experience in the Risk and Market Data space.What you'll need to succeed: Strong server-side Java Development experience in a lead role working ...

Java Software Engineer Join a tier-one global financial institution undergoing a major digital transformation across its capital markets technology estate. You'll play a key role in scaling a mission-critical platform, driving architecture, performance optimisation, automation, and engineering best practice. Strong Java and distributed systems experience ...

Hunter Bond is seeking a Front Office Java Developer to join an elite investment institution in London. You will build high-performance pricing and analytics tools, collaborating directly with traders and quants in a greenfield role. The position offers a competitive compensation package of up to £130k base ...

Description Contract Role - Senior Java Full Stack Developer – London/Hybrid – 10 months initial – Inside IR35 Role Overview: Job Title: Senior Java Full Stack Developer Location: Hybrid – 3- 4 days onsite per week in London Contract Type: Contract Duration: 10 months initial Rate: £675.11 … PAYE or £800 per day Umbrella Sector: Banking We are looking for a Java Full Stack contractor with strong engineering experience across backend, frontend, and delivery automation, with a particular emphasis on CI/CD automation and system integration. This role suits someone who is hands-on in Java ...

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over … customers by delivering inbound experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position ...

Description Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses … customers by delivering inbound experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position ...

Location London, Hybrid Role Type 12 Month Contract Rate £700 - £800 per day Delta Capita is seeking a highly skilled Senior eTrading Developer to join our clients Global Markets Technology practice. This role will focus on developing and enhancing low‐latency components within an electronic trading (eTrading) and eRisk … technical designs aligned with broader architectural standards. Work effectively alongside external and internal technical teams as required. Develop high‐quality, low‐latency server‐side Java components using industry‐standard patterns. Apply continuous integration practices and automated testing (unit, integration). Conduct comprehensive testing prior to release into UAT. Assist ...

Location London, Hybrid Role Type 12 Month Contract Rate £800 - £900 per day Delta Capita is seeking a highly skilled Senior Rates Developer to join our Global Markets Technology practice. This role sits within a specialist team responsible for delivering pricing, eTrading and eRisk capabilities across Rates … channels. Integrate quantitative models and new market data feeds into the pricing platform. Produce detailed technical designs aligned to solution architecture. Implement high‐quality Java server‐side components, applying industry‐standard development patterns. Build simulation and back‐testing environments; investigate regression issues where required. Conduct automated unit, integration ...

engineering practices and contribute to complex technical problem solvin g.Service-led architectur e: Support the design and implementation of distributed, service-oriented architectures using Java or Kotlin, ensuring reliability and maintainabilit y.Modern UI developmen t: Create intuitive and responsive user interfaces using React, improving how salespeople access insights …/or Functional programming, and proven use of XP/agile practices including TDD, acceptance testing, pair programming, and continuous integrati on.Proficiency in Java or Kotlin, and familiarity with building modern web applications using Typescript and Rea ct.Experience applying iterative development to deliver high-value outcomes in complex domai ...

engineering practices and contribute to complex technical problem solvin g.Service-led architectur e: Support the design and implementation of distributed, service-oriented architectures using Java or Kotlin, ensuring reliability and maintainabilit y.Modern UI developmen t: Create intuitive and responsive user interfaces using React, improving how salespeople access insights …/or Functional programming, and proven use of XP/agile practices including TDD, acceptance testing, pair programming, and continuous integrati on.Proficiency in Java or Kotlin, and familiarity with building modern web applications using Typescript and Rea ct.Experience applying iterative development to deliver high-value outcomes in complex domai ...

engineering practices and contribute to complex technical problem solvin g.Service-led architectur e: Support the design and implementation of distributed, service-oriented architectures using Java or Kotlin, ensuring reliability and maintainabilit y.Modern UI developmen t: Create intuitive and responsive user interfaces using React, improving how salespeople access insights …/or Functional programming, and proven use of XP/agile practices including TDD, acceptance testing, pair programming, and continuous integrati on.Proficiency in Java or Kotlin, and familiarity with building modern web applications using Typescript and Rea ct.Experience applying iterative development to deliver high-value outcomes in complex domai ...

engineering practices and contribute to complex technical problem solvin g.Service-led architectur e: Support the design and implementation of distributed, service-oriented architectures using Java or Kotlin, ensuring reliability and maintainabilit y.Modern UI developmen t: Create intuitive and responsive user interfaces using React, improving how salespeople access insights …/or Functional programming, and proven use of XP/agile practices including TDD, acceptance testing, pair programming, and continuous integrati on.Proficiency in Java or Kotlin, and familiarity with building modern web applications using Typescript and Rea ct.Experience applying iterative development to deliver high-value outcomes in complex domai ...