1 to 25 of 270 Java Engineer Jobs in London

Core Java Engineer Get into Trading/Finance80k Plus BonusQuant Capital is urgently looking for a Core Java Engineer to join our high profile client. Our client has recently been voted in the fintech 100 (best financial technology businesses). They provide a market leading Execution … rest. Most software is developed in Java. The client trades across Equities, Fixed Income, and FXOn a day to Day basis the Java Engineer will: Support the build and maintenance of our systemWriting and implementing high quality codeUpdating software programsIdentify root cause analysis of software issuesDeploying software toolsCollaborating ...

Java Software Engineer – Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Reactive Programming, MongoDB Payments A Senior Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought after … specialises in providing high performance technology solutions to global financial institutions (including several Investment Banks), primarily to augment their payments capabilities. As a Senior Engineer, you will join a new client implementation team working on client-based projects to implement and customise their core realtime payments processing solution,using ...

Full Stack Java Engineer Duration: ASAP - 31st December 2027 Workload: Full-time hours Setup: Freelance (Daily Rate/BV or ZZP) Sponsorship: Not Provided Location: Veldhoven, Netherlands (2 days per week onsite, 3 remote) Our client is seeking an experienced Full Stack Java Engineer to support … development and modernisation of a large-scale application platform hosting over 40 business-critical applications. Key Responsibilities Develop and maintain enterprise-grade Java and Angular applications. Contribute to the migration of legacy systems into modern Java/Angular solutions. Design, build, and optimise backend services using Java ...

Java Engineer Small Hedge Fund90k, 30% Bonus, 3 days a week in the office. Quant Capital is urgently looking for a Software Engineer with Java and Python skills to join our high profile client. Our client is a well known Systematic Trading Hedge Fund. They like … identify issues in development or UAT and keep production safe. You will gain considerable knowledge of the trading and asset management space. The Java Engineer Must have:· 2:1 Computer Science from a Red Brick UK or EU University· 3 years software development experience in a small firm ...

Core Java Engineer Get into Trading/Finance80k Plus BonusQuant Capital is urgently looking for a Core Java Engineer to join our high profile client. Our client has recently been voted in the fintech 100 (best financial technology businesses). They provide a market leading Execution … rest. Most software is developed in Java. The client trades across Equities, Fixed Income, and FXOn a day to Day basis the Java Engineer will: Support the build and maintenance of our systemWriting and implementing high quality codeUpdating software programsIdentify root cause analysis of software issuesDeploying software toolsCollaborating ...

Senior Java Engineer Payments UK Wide | Mainly Remote | Up to £75,000 + Benefits We're looking for an experienced Senior Java Engineer with hands-on ICON IPF experience to join a team delivering large-scale payment technology solutions for major banking clients. This … hands-on engineering role, working with modern cloud-based architectures and helping develop and deliver complex payment systems. You'll bring strong Java and AWS experience, alongside a solid understanding of payment frameworks and ISO 20022. Who you'll be working with You'll be joining a technology team ...

Senior Java Engineer - Payments UK Wide Mainly Remote Up to £75,000 + Benefits We're looking for an experienced Senior Java Engineer with hands-on ICON IPF experience to join a team delivering large-scale payment technology solutions for major banking clients. This ...

Latency Java Engineer Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From … lead applications systems analysis and programming activities. The role is to provide senior, low-latency systems and application framework engineering (skilled in Java, C++ , Rust, KDB, market data, algorithmic trading technology) within the London Based High Performance Architectures (HPA ) team. The team require a specialist on algorithmic trading systems ...

Java Engineer - Market Data - LSEG/RTSDK Migration Permanent London - Hybrid 3 days per week Salary - £85K - £110K We are seeking an experienced Java Engineer with strong market data and electronic trading experience to support the modernisation of a Futures algorithmic trading platform. The role will … existing RFA market data usage and map functionality to RTSDK. * Assess differences in market data fields and behaviour across relevant exchanges. * Develop enhancements to Java applications and shared frameworks to support RTSDK. * Support a phased migration while maintaining compatibility and system stability. * Develop and execute automated, regression and integration ...

consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate … will have strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable. RequirementsKey Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute ...

approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced Senior Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate … will have strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable. Key Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute ...

Software Engineer - Java About Millennium Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors. Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction … build AI-powered risk tooling, including agents, plugins, and integrations that connect large language models to risk data and platforms Write clean, well-tested Java and Python code, participate in code and design reviews, and help uphold engineering standards and best practices. Collaborate closely with engineers across London ...

Senior Java Developer Business Unit: FTSE Russell – Index Platform Company: London Stock Exchange Group (LSEG) About Us LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services … everyone can grow, develop and fulfil your potential with meaningful careers. About the Role We are seeking a highly skilled and hands‐on Senior Java Engineer with AI proficiency to help build the next generation FTSE Russell Index Platform. This platform underpins the calculation and distribution of FTSE ...

Java Software Engineer | Distributed Systems | Banking Contact email: Job ref: JD/SJ/2210_1792666152 Startdate: 2-3 Months Java Software Engineer | Distributed Systems | Banking London | £90-110k base + discretionary bonus + benefits Java | Microservices | AWS | SQL | Architecture | CI/… Role: A large financial services organisation is looking for a hands-on Java Software Engineer to take meaningful technical ownership across business-critical systems. This is more than a pure coding role. You'll be close to architecture and engineering decisions, helping shape how services are designed ...

Senior Java Engineer London – Canary Wharf FTC – 9 Months (starting in September) Up to 70K We’re working exclusively with a well-established financial services organisation that is looking to add an experienced Senior Software Engineer to their payment project. This is a great opportunity to join … Mentoring and supporting other engineers, encouraging knowledge sharing and continuous development. What We’re Looking For: 4-5 years hands-on experience working with Java and/or Kotlin Commercial experience with AWS (preferred), Azure or GCP. Experience working with CI/CD pipelines, DevOps practices and development automation. ...

Principal Backend Engineer/Developer (Java Spring Boot Kafka AWS) London/WFH to £120k Are you an experienced Java Software Engineer who enjoys taking technical ownership, leading projects and working directly with clients? You could be progressing your career at a global technology consultancy, working … complex, long-term transformation projects, primarily within the financial services sector. As a Principal Backend Engineer, you'll lead the design and delivery of high impact technology projects, helping clients modernise legacy systems, migrate to AWS and introduce modern CI/CD and cloud deployment practices. You'll combine ...

Lead Software Engineer - Java/Python LONDON, LONDON, United Kingdom Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Lead Software Engineer at JPMorganChase within Digital Markets Execution Technology … continuous improvement aligned to measurable outcomes Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and advanced applied experience in Java/Python Hands‐on practical experience delivering system design, application development, testing, and operational stability for mission‐critical platforms Advanced in one or more ...

Project description As a Senior Full Stack Java Engineer within the US Corporate Loans POD, you will design, develop, and deliver enterprise integration solutions connecting Loan IQ with upstream and downstream platforms. You will leverage modern cloud-native technologies, AI-assisted development tools, and Agentic AI practices … optimize application and integration performance. Skills Must have Core Engineering 8+ years of software engineering experience, ideally within Financial Services. Strong expertise in Java, Spring Boot, REST APIs, and distributed systems. Experience with Kafka, IBM MQ, or similar messaging technologies. Strong integration experience with Loan IQ, lending, banking ...

Project description As a Senior Full Stack Java Engineer within the US Corporate Loans POD, you will design, develop, and deliver enterprise integration solutions connecting Loan IQ with upstream and downstream platforms. You will leverage modern cloud-native technologies, AI-assisted development tools, and Agentic AI practices … optimize application and integration performance. SKILLS Must have Core Engineering 8+ years of software engineering experience, ideally within Financial Services. Strong expertise in Java, Spring Boot, REST APIs, and distributed systems. Experience with Kafka, IBM MQ, or similar messaging technologies. Strong integration experience with Loan IQ, lending, banking ...

Senior Low Latency Java Engineer This is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology Team. The overall objective of this role is to lead applications systems analysis and programming activities. The role … provide senior, low-latency systems and application framework engineering (skilled in Java, C++, KDB, market data, algorithmic trading technology) within the London Based High Performance Architectures (HPA ) team. The team require a specialist on algorithmic trading systems utilities including but not limited to market data replay and back test ...

Senior Java/Python Engineer London | Up to £775/day (Inside IR35) or £120,000 Base Salary 5 Days Onsite for the First 6 Months | 4 Days Thereafter This investments clientis investing heavily in a strategic platform build-out driven by T+1 settlement requirements and continued business … batch-driven processes towards a modern, event-driven platform, giving engineers the opportunity to have genuine influence over architecture and design decisions. Technology Stack Java Python Spring Boot Kafka Linux PostgreSQL AWS Microservices REST APIs What We're Looking For Capital Markets Technology Regulatory Reporting Finance Systems Trade Lifecycle ...

TitleSenior Software Engineer - (Java/AI) Brokerage ServicesJob DescriptionSo, who are we IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation … give you the platform to define what comes next.Join us at IG – the future gets built here.Your teamWe’re looking for a Senior Engineer to join our Brokerage Services team to push hard on AI across Brokerage Services engineering: AI-assisted coding, testing and deployments, shift left on security ...

Senior Software Engineer/Developer (Java Mathematics) WFH/Surbiton to £70k Are you a 'mathematically minded', senior hands-on Software Engineer looking for an opportunity to work on complex and interesting systems? You could be joining a global geoscience technology company within oil and gas exploration. … Senior Software Engineer you'll join a supportive Agile team responsible for the company's highly complex desktop oil discovery product. You'll gain exposure to the full software development lifecycle working on new features and enhancements as well as maintaining existing applications. Location/ ...

Citi is seeking a senior Low Latency Java Engineer to drive Java-based, low-latency systems for algorithmic trading. You will develop event-sourced microservices, influence architecture decisions, and collaborate with cross-functional teams in a high-performance London environment. You will mentor junior engineers while shaping ...

London Stock Exchange Group (LSEG) seeks a Senior Java Engineer with hands-on expertise in Java and Python to help build and operate the next generation FTSE Russell Index Platform. You will design, implement, and optimize AI-enabled features and large-scale index computations in a high ...