17 of 17 Senior 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 … hosted 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 ...

Senior Java Backend Developer East London & Essex Border, UK | £590 per day (Inside IR35 via Umbrella) | 4 Days per Week On Site We are partnering with the original line-assembly automotive manufacturer and are seeking an experienced Senior Java Backend Developer to join … colleagues, and contributing to a positive team environment. Essential Skills & Experience Excellent communication skills with a collaborative approach to delivering high-quality products. Strong Java backend development experience. Recent hands-on experience with OAuth 2.0 , including customising identity workflows. Ability to lead technical discussions, mentor team members, and explain ...

Senior Java Backend Developer East London & Essex Border, UK £590 per day (Inside IR35 via Umbrella) 4 Days per Week On Site We are partnering with the original line-assembly automotive manufacturer and are seeking an experienced Senior Java Backend Developer to join ...

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 ...

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 ...

Contract Role – Senior FX e-Trading Java Developer – London/Hybrid – 12 months initial – Inside IR35 PAYE Role Overview: Job Title: Senior FX e-Trading Java Developer Location: Hybrid – 4 days onsite per week in London Contract Type: Contract Duration: 12 months initial Rate … desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What you’ll do Architect and implement scalable, event-driven, and microservices-based backend components, including APIs, market data, order/risk workflows ...

Senior Java Full Stack developer Location: London Role Type: Contract - 12 months Work Setup: Hybrid - 3 days in the office Role Level: Senior Who We Are Robert Walters is the world's most trusted talent solutions business. Across the globe, we deliver recruitment, outsourcing, and talent … application development within a commercial environment. Strong technical expertise in Angular, with the ability to build and maintain modern web applications. Exposure to Java, RESTful APIs and database technologies, with an understanding of application architecture and data structures. Knowledge of software development best practices, agile delivery methodologies ...

their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high ...

Online Trading Platform FinTech Client are looking for experienced Senior Java Engineers to join a new team to modernise and simplify critical legacy services using the latest AI Tools and Internally Built LLMs.The client can offer up to £120,000 Basic + Bonus (c25-35k) + PensionThis role … done COMPLETELY REMOTELY from the UKWe are looking for: Experienced Java Back-End Software Engineers Multi-threading (GC, Memory, Performance Tuning) ideally in a trading environment Some experience with Service Modernisation, working in a modern API First and Cloud Native Experience, any experience using AI Tools is preferred ...

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 ...

product capability and looking for talented individuals to help build transformational capital markets products including: Aeron - our flagship high-performance messaging infrastructure. Hydra - our developer framework for accelerating the development and delivery of trading systems. Artio - our market-leading open-source FIX engine. YOU ARE: A great team player … about learning new things and keeping up to date Happy to work in a test-driven and Agile development fashion YOU HAVE: Experience in Java server-side software development. Expertise in Java technologies, including related Java and other technologies. Solid experience programming using Core Java. Minimum Java ...

# 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 ...

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 … 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 ...

migration of D2C services to new infrastructure, including rollback planning, environment validation and post-migration sign-off Your Skills and Experience Solid Core Java Skills - Good understanding of Java fundamentals including object-oriented programming, collections, exception handling and concurrency. Integration, API Development and Databases - Experience building and deploying … equivalent) and build tools such as Maven or Gradle Containerization and Orchestration - Practical experience with Docker and Kubernetes, including deploying and managing containerized Java services Monitoring and Observability - Experience with monitoring and alerting tooling such as Geneos, Grafana and Prometheus or equivalent, with an appreciation of what good operational ...

leading consulting and solutions provider is seeking a skilled Senior eTrading Developer in London. This contract role involves developing low-latency components within an electronic trading platform. Responsibilities include working with stakeholders to design and implement systems, coding in Java, and supporting algorithmic trading strategies. The ideal … candidate will have robust server-side Java skills, proven experience in low-latency applications, and knowledge of electronic trading protocols. A hybrid working model is expected. #J-18808-Ljbffr ...

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 ...

Delta-Capita is looking for a highly skilled Senior eTrading Developer in London for a 12-month contract. This role will focus on developing low-latency components within an electronic trading and eRisk platform for global markets technology. Key responsibilities include working with stakeholders to understand requirements, producing … technical designs, and developing high-quality Java components. A valid UK working permit is mandatory, and hybrid working requires at least 3 days in the office. #J-18808-Ljbffr ...