1 to 25 of 268 Permanent Java Developer Jobs in London

Algo Trading Developer - Global Financial Technology Leader Up to £130k base salary | Permanent | Hybrid Working | Central London I'm working with a world-leading financial technology organisation to find a highly capable Algo Trading Developer. My client is at the forefront of algorithmic trading and seeking a talented developer to join their Global Trading Technology team. The Opportunity … markets Quantitative models and analytical trading signals High-availability trading infrastructure serving institutional clients worldwide Backend systems supporting equities, futures, and listed derivatives trading What They Needs Expert-level Java development with strong object-oriented design principles Degree in Computer Science, Mathematics, or Engineering Hands-on experience building trading systems (execution algorithms, risk trading, smart routing) Deep understanding of … ll join 5,000+ professionals working collaboratively to deliver innovative liquidity and data solutions that power the world's financial markets. This is an exceptional opportunity for a senior developer looking to make their mark in algorithmic trading. Please get in touch for a confidential discussion. McGregor Boyall is an equal opportunity employer and do not discriminate on any More ❯

Backend Developer/Software Engineer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Backend Developer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely successful and growing commodities trading firm that specialise in … trading silver and gold. As a Backend Developer you'll collaborate with the Lead Engineer on the whiskey trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java … You are degree educated, having achieved a 2.1 or above gained in Computer Science (or similar STEM discipline) from a top tier university (e.g. Russel Group) You have strong Java and Kotlin development experience You have experience with Agile processes and TDD You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms More ❯

development of complex software solutions Partnering effectively with client project teams A natural ability to mentor junior developers You’ll have: 6+ years of commercial software engineering experience in Java, Spring, Microservices. Service oriented architecture development TDD/BDD Experience working in an Agile environment Natural self-motivation with a passion for delivering excellence Great communication skills with the More ❯

Java Microservices Developer Start: ASAP Duration: 6-12 months Rate: inside IR35, up to £475/day Location: on site in Cardiff 3 days per week We are seeking a skilled Java Microservices Developer to join a strategic transformation programme within the financial services industry. You’ll play a key role in building scalable microservices solutions … is an exciting opportunity to contribute to high-impact work within a fast-paced, agile team, collaborating across technical and business teams. Key Responsibilities: - Develop scalable, maintainable microservices using Java and Spring Boot - Collaborate with engineers, product managers, and stakeholders - Implement CI/CD pipelines and automate deployment workflows - Ensure code quality through testing, reviews, and best practices - Work … within agile frameworks such as Scrum or Kanban Essential Skills & Experience: - Strong Java development background with Spring Boot and Spring Cloud - Solid understanding of microservices architecture and API design - Experience with AWS, Azure, or Google Cloud - Familiarity with MySQL, PostgreSQL, or MongoDB - Proficiency in unit and integration testing - Excellent communication and problem-solving skills - Comfortable in client-facing and More ❯

Social network you want to login/join with: We are looking for a talented Java Developer to join our team and contribute to the design, development, and maintenance of high-performance applications. The ideal candidate will have a solid understanding of Java programming and be enthusiastic about working with the latest tools and frameworks in software … development. You’ll play a critical role in building scalable, high-quality software solutions. Key Responsibilities: Application Development : Design, develop, and implement Java applications using modern development tools and best practices. Code Quality : Write clean, scalable code, and participate in code reviews to maintain code quality. API Integration : Develop and integrate RESTful APIs for seamless communication between different systems … participate in design discussions. Performance Optimization : Ensure that applications are optimized for speed, scalability, and performance. Documentation : Create and maintain comprehensive project documentation. Required Skills and Qualifications: Proficiency in Java : Strong hands-on experience with Java SE and Java EE, with the ability to write efficient and effective code. Frameworks : Experience with frameworks such as Spring Boot More ❯

Join to apply for the Java Developer role at Handelsbanken Join to apply for the Java Developer role at Handelsbanken Job Introduction The IT team is responsible for the delivery, support and maintenance of Handelsbanken PLC’s Core Banking systems encompassing Platforming, Risk, Payments, Lending and Customer Data. The team is currently in the process of … expanding. We require an additional Java Developer providing expertise in the full software development life cycle. The core specialty skillset is Java, but the ideal candidate should also have knowledge of front-end and back-end development. Job Introduction The IT team is responsible for the delivery, support and maintenance of Handelsbanken PLC’s Core Banking systems … encompassing Platforming, Risk, Payments, Lending and Customer Data. The team is currently in the process of expanding. We require an additional Java Developer providing expertise in the full software development life cycle. The core specialty skillset is Java, but the ideal candidate should also have knowledge of front-end and back-end development. The successful applicant will More ❯

ideas into the products, content and services millions of people love. And we do it all right here at Sky. Sky is 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 … across the team, and provide mentoring to individual team members. What you'll bring: Extensive experience of designing, building and running cloud-based applications using JVM languages such as Java, Kotlin, Groovy or Scala. An understanding of container orchestration tooling such as Docker Compose, Amazon ECS or Kubernetes Professional experience using public cloud offerings from any of Amazon Web More ❯

Senior Java Analyst Developer/Technical Consultant £800 p/d Outside IR35 Quant Capital is urgently looking for a Java Analyst Developer/Technical Consultant to join our high profile client. Our client is a global trading platform software business. Its products are used globally by most asset managers and pension funds. They are well … s) for any gaps in functionality, and undertaking development to deliver functionalities (when required). Technical Consultants/Analyst Developers must have: 8+ years’ full-stack experience as Senior Developer around digital applications, software engineering, microservices and cloud. This could include Core Java, Spring Boot, Hibernate/JPA and UI using React, Ember, JavaScript or HTML. FIX Experience More ❯

Java Developer - Java Engineer - Java - Kafka - TDD - Hybrid - 3 Months - £620/650(Inside IR35) - London We're working with one of the UK's leading broadcast providers who are looking for an experienced Java Developer to join their team. This is a fantastic opportunity to work on cutting-edge technology in a collaborative … forward-thinking environment. What you'll be doing: Java Developer - Java Engineer - Java - Kafka - TDD - Hybrid - 3 Months - £620/650(Inside IR35) - London We're working with one of the UK's leading broadcast providers who are looking for an experienced Java Developer to join their team. This is a fantastic opportunity to … work on cutting-edge technology in a collaborative, forward-thinking environment. What you'll be doing: Designing, building, and testing microservice-based applications using Java, Docker, and Kubernetes Working with Kafka to build event-driven architectures Collaborating closely with other engineers, sharing knowledge and best practices Supporting and mentoring junior developers and contributing to internal training efforts Creating scalable More ❯

Social network you want to login/join with: Contract - Senior/Principal Java Developer, london (city of london) col-narrow-left Client: Source Technology Location: london (city of london), United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 16.06.2025 Expiry Date: 31.07.2025 col-wide Job Description: We’re working … with a major financial institution looking to scale out its engineering function with a Principal Java Developer to lead critical systems work. This is a hands-on role within a high-performing team modernising legacy platforms, improving availability, and delivering new functionality across the estate. You’ll be working closely with infrastructure, architecture, and infosec teams to support …/CD improvements, REST API design, and steering collaborative technical decisions across squads. What they’re looking for: Proven experience supporting large-scale, business-critical systems Strong background in Java and ideally C# Some front end exposure (Angular ideally but other frameworks considered). Note the role is back end focused. Comfortable working with legacy systems and large enterprise More ❯

Join to apply for the Java Developer Tech Lead role at Lumenalta 3 days ago Be among the first 25 applicants Join to apply for the Java Developer Tech Lead role at Lumenalta Get AI-powered advice on this job and more exclusive features. At Lumenalta, we create impactful software solutions that drive innovation and transform … Logistics, FinTech, Transportation, Insurance, Media or other complex multifactor industries Requirements 10+ years of experience (technical assessment will be required) Experience with the Financial Industry Senior-level experience with Java 17, Kafka, Spring Boot, Spring REST, Spring Data, Spring AOP Hands-on experience of working with AWS cloud technologies, e.g. ECS for Kubernetes, EC2, Elastic Container Registry, Lambda, ELB … Contract Job function Job function Engineering and Information Technology Industries IT Services and IT Consulting Referrals increase your chances of interviewing at Lumenalta by 2x Get notified about new Java Software Engineer jobs in United Kingdom . Greater London, England, United Kingdom £40,000 - £50,000 1 month ago Warwickshire, England, United Kingdom £35,000 - £55,000 2 weeks More ❯

working with Fortune 1000/Global 2000 across 34 countries and 5 continents including North America, South America, Europe, Asia, Australia and Middle East. About the Role:- Job Description Java Infrastructure as a code Mode-Hybrid-3 days from Office Location-London/BurgessHill Mode-FTE or Permanent JD: The role is focused on bringing public cloud to the … Documentation Emphasis on creating comprehensive and highquality documentation Enduser Feedback Valuing and incorporating feedback from endusers to improve solutions Psychological Safety Fostering a safe environment for experimentation and innovation Developer Advocacy Advocating for the needs and interests of developers Automation Strong focus on automating repetitive tasks to increase efficiency Inner and Open Source Contribution Encouraging contributions to both internal … roles You build effective work relationships giving and receiving constructive feedback and your colleagues at all levels and across all teams trust you Technologies We Use Languages Go and Java are our primary languages Frontend Any browser applications are based on React CICD Code lives in GitHub Enterprise and flows to production through a CICD pipeline built on GitHub More ❯

Select how often (in days) to receive an alert: JOB TITLE: Java Developer (Northampton,UK) Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and … sustainable, more inclusive world. Your Role Gathering requirements from the business analyst team. Analyse any new technical requirements within the development team. Develop and unit test the application using Java/Java 8, REST, python, junit, cucumber etc. Writing SQL,db procedures , performance optimization of the queries and stored procedures. Sprint planning and attending retrospective call, daily stand … document and the project artefacts up to date. Planning and executing the migration of old applications to the new platform. Review and optimize the performance of the application on java and database side. Your Profile Strong programming and analytical skills using Core Java Proficient with Restful API dev, Java 8 feature Working experience with git/github More ❯

Do you have a PhD in Computer Science? FULLY REMOTE Senior Java Developer - Sustainable Energy GreenTech Salary : £100-140k + benefits Location : fully remote from anywhere in the UK I am partnered with a unique energy software platform that is helping consumers transition towards a sustainable future by producing energy as a services. They are in search … of an enthusiastic and knowledgeable Senior Java Developer with a strong comprehension of the Core Java principles alongside a deep understanding in Advanced Computer Science: Algorithms Graph theory Interval graphs Compiler theory You will be a fantastic Senior Java Developer if you have worked with Core Java and have extensive experience with Multithreading , Concurrency … and Low Latency , because you will be building your own frameworks and designing new databases from scratch. Your role as a Senior Java Developer will include: - Domain modelling - Requirement engineering - Design - Initial bootstrapping - Concepts - Designing frameworks & architectural style Modern tech stack: Java 19 , Microservices , AWS , Kubernetes , Node.js and Vue.js Alongside a salary of up to £140k and More ❯

Join to apply for the Junior Java Developer role at eClerx Digital Location: London Type: Full-time/Hybrid Department: Technology Summary eClerx Markets is searching for a talented and motivated Java Developer to join our growing team. In this role, you will be responsible for the design, development, and implementation of Java projects. Responsibilities … middleware platforms. Develop and deliver major components of critical transactional systems supporting complex clearing and post-clearing workflows. Work on systems that support diverse workflows and business rules using Java, Spring, Hibernate, Sybase/DB2, and MQ Series. Design and implement test scenarios to ensure system robustness. Contribute to the architecture and development of scalable, event-driven distributed systems. … Ensure high performance and responsiveness in multi-threaded environments. Eligibility Requirements Proficiency in Java with a good understanding of multi-threading and core Java concepts. Experience in large-scale distributed, event-driven systems. Solid knowledge of database concepts, including design and SQL querying. Proficiency in Unix/Linux environments. Experience with Spring, Hibernate, XML, and build tools such More ❯

that assures you to develop your skills. Its offers are organized around 3 main expertise: IT Support, Rapid Application Development, and Software Development. Margo is seeking a Front Office Developer (C++ or C# or Java or Python) to integrate its teams within a worldwide corporate and investment bank. Key Responsibilities Creation/development of new trading platforms Implementation … Risk and PnL Credit and rates Exchange-traded funds Convertible bonds Skills Required Deep understanding of object-oriented programming concepts and principles Strong skills in C++ or C# or Java or Python development (depending on the team/project) with good knowledge of their ecosystem Knowledge of SQL and Linux (including development, debugging, scripting, and networking) Problem-solving mindset More ❯

Senior Java Developer - FX Technology London (VP) Senior Java Developer - FX Technology London (VP) Citi London, United Kingdom Apply now Posted 3 hours ago Permanent Competitive Senior Java Developer - FX Technology London (VP) About Citi As the world's most global bank, Citi gives you the tools to be a trailblazer. We're not … more important than experience in the financial sector. We welcome applications from any industry and should you wish to apply your application will be reviewed for a multitude of Developer positions at varying levels. About FX Tech Citi FX has a physical presence in 83 countries with 1,400 dedicated staff giving us the largest FX presence of any … the market-leading Citi Velocity Single Dealer Platform What we are looking for: A real interest in/passion for coding Extensive experience in hands-on software development using Java and related frameworks Highly credible hands-on engineer, confident to dive into a code-base and deliver substantive features and change Ability to work directly with business partners and More ❯

of senior and intermediate engineers Promote a culture of strong collaboration, share best practice, propose improvements Point of contact with stakeholders and the NY team + years of professional Java experience Strong knowledge of data structures and algorithms SQL experience Knowledge of at least one scripting language (shell, python, perl etc.) Knowledge of network programming fundamentals Bachelor's degree More ❯

A leading corporate banking and capital markets organisation is seeking a Java Developer to join their team in London. Main Purpose of the role: We are looking for an experienced Java Developer to join a fast-growing FX pricing team. The role will focus on building pricing applications from the ground up, enabling the FX trading … in Java. Write unit and system integration tests. Application performance profiling and optimisation. Collaborating directly with stakeholders (traders and quants) to take requirements. Key Requirements: Strong proficiency in Core Java, including multi-threading, concurrency, and design patterns. Experience in working with real-time event driven environments. Track record of test-driven development, integration testing, mocking and back-testing. Familiarity More ❯

A leading corporate banking and capital markets organisation is seeking a Java Developer to join their team in London. Main Purpose of the role: We are looking for an experienced Java Developer to join a fast-growing FX pricing team. The role will focus on building pricing applications from the ground up, enabling the FX trading … in Java. Write unit and system integration tests. Application performance profiling and optimisation. Collaborating directly with stakeholders (traders and quants) to take requirements. Key Requirements: Strong proficiency in Core Java, including multi-threading, concurrency, and design patterns. Experience in working with real-time event driven environments. Track record of test-driven development, integration testing, mocking and back-testing. Familiarity More ❯

Social network you want to login/join with: Java Developer - Algorithmic Trading, London Client: UBS Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: 035a6f7631a2 Job Views: 11 Posted: 30.06.2025 Expiry Date: 14.08.2025 Job Description: Java Developer - Algorithmic Trading Your role Are you interested in algorithmic trading? We are seeking … a developer to join our electronic trading team within UBS Global Markets. We're looking for someone to: Take a Java developer role in building a system to electronically execute client orders across equities, fixed income, and exchange-traded derivatives, applying industry-leading approaches to order routing, including machine-learning techniques, to grow client business and revenues. … Be a talented software engineer and Java developer, ideally with experience in trading systems. Be involved in all stages of development: analyzing business requirements, designing solutions, and writing high-quality code. Collaborate with other global IT teams, Quants, and Traders across regions and asset classes. Your team You will join the Execution Hub ATLAS development team in London More ❯

Join us as a BATS Rates Java Developer – AVP at Barclays, where you'll spearhead the evolution of our digital landscape, driving innovation and excellence. You'll harness technology to revolutionise our digital offerings, ensuring unparalleled customer experiences. To be successful as a BATS Rates Java Developer – AVP, you should have experience with: •Java development More ❯

weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Join us as a BATS Rates Java Developer – AVP at Barclays, where you'll spearhead the evolution of our digital landscape, driving innovation and excellence. You'll harness technology to revolutionise our digital offerings, ensuring unparalleled customer experiences. To … be successful as a BATS Rates Java Developer – AVP, you should have experience with: Java development in investment banking domain Relational database management systems Messaging brokers (Kafka, Solace, MQ, etc.) Some Other Highly Valued Skills May Include Low latency programming experience Proficiency in Scripting Efficient communication skills You may be assessed on the key critical skills relevant More ❯

Bonhill Partners are looking to speak with e-trading Java Developers to join an exciting systematic trading hedge fund based in London. Compensation: £250-350k Location: London, Bank are - 5 days per week Job Description: As a Java Developer with e-trading experience, you will play a key role in the development, enhancement, and maintenance of … will collaborate with a talented team of developers, analysts, and traders to ensure our system meets the highest standards of performance, reliability, and scalability. Responsibilities: Design, develop, and maintain Java-based applications for our e-trading trading platform. Implement new features and enhancements to improve system functionality and performance. Collaborate with cross-functional teams to gather requirements and ensure … the latest industry trends and technologies to continuously improve the platform. Requirements: Bachelor's degree in Computer Science, Engineering, or related field. 2-5 years of professional experience in Java development. Strong knowledge of core Java, multithreading, and concurrency. Experience with electronic trading systems. Familiarity with financial markets and trading concepts. Proficient in SQL and experience with relational More ❯

London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: c92523156fd9 Job Views: 3 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Java HFT Developer Salary: up to £130k base + bonus Summary Tech-savvy algorithmic trading firm looking to hire a Java Developer to help develop and operate … trading system and products. This is a superb opportunity for a well-organised and pragmatic engineer with a passion for concise, efficient code to join one of the only Java teams you will find in HFT. A high impact role, you will be maintaining and extending the JVM-based networking platform in order for it to integrate with new … trading venues and adapt to new asset classes. You'll also be implementing new cross-asset pricing features. The successful candidate will be an expert in Java development - your in-depth understanding of the inner workings of modern JVMs will be invaluable, particularly around performance optimisation. Requirements 3+ years' professional experience of writing Java and/or Kotlin More ❯