26 to 40 of 40 Java Developer Jobs in London

Java Developer - ION/Credit Bonds - sought by investment bank based in London - Contract - Hybrid *inside IR35 - umbrella* Details: Hardworking, dedicated, detail oriented, focused on quality and a team player, with effective verbal and written communications. 7+ years of hands-on coding in server side Java with strong emphasis on Concurrency, Collections API, Messaging and Event processing More ❯

Full Stack Developer/Software Engineer (Java AWS React) London/WFH to £110k Are you a technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology … entrepreneurs with a hugely successful track record. As a Full Stack Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form the core of the platform. You'll collaborate closely with the Lead Engineer, Architect and … time, meeting up with colleagues in London; as the company grows there will likely be some in office requirements but with lots of flexibility. About you: You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface/front end development using React or Tailwind CSS You have a strong knowledge of modern More ❯

Java Software Engineer - Central London (2 days a week onsite) - Up to £60k (DOE) - Permanent Uneek are working with a forward-thinking organisation delivering high-impact software and AI solutions across secure and regulated sectors that are looking for a Java Software Engineer. On Offer: Up to £60k (DOE). Permanent role. 2 days a week onsite in … and upkeep of the automated test suite. Identifying gaps in products and processes, recommending and implementing improvements. What They're Looking For: 3+ years of professional experience in commercial Java software development. Strong understanding of Agile methodologies. Skilled in object-oriented design, with hands-on experience in AWS and SQL databases. Please get in touch for further details and More ❯

Join as an AVP Java and Python developer and be involved in building the technology platform supporting the Barclays Quantitative Investment Strategies business (QIS). The team is working on a multi-year transformation programme to build a more capable, streamlined, and high performance platform, as a key enabler for the ambitious expansion of the Barclays QIS business. … To be successful as an AVP Java/Python developer within this team, you should have experience with: Java development - Core Java, Collections, Multi-Threading and Concurrency, OOPS concepts, Exception Handling, JVM Concepts, Spring Framework (Spring Boot), SQL Python development - Python, service frameworks FasAPI/Flask/Gunicorn, OOPS concepts, Exception Handling, Data Analysis and data More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage, and delight 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 to make decisions about what should be created, and how it should be … They believe that problems are solved with technology and experience, not process, and that mistakes are a normal part of learning. These roles would be suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, Linux, C# or Java; which might have been acquired as More ❯

Contract Back-End Java Engineer – Remote – up to £650 per day 12-month contract (with potential extension) Are you an experienced Back-End Java Engineer with proven experience in the gambling industry This is a fantastic opportunity to work on large-scale, high-traffic platforms for a well-known operator, delivering critical back-end services in a modern … distributed environment.This is a fully remote contract (UK based), initially for 12 months with strong potential to extend.Key Requirements You have strong commercial experience with Java and frameworks such as Spring/Spring Boot. You bring solid cloud experience (preferably AWS) and are confident working with Kubernetes and Docker . You’re skilled with messaging systems and APIs (Kafka … services that power high-traffic gambling platforms. Contributing to the design and architecture of distributed systems that need to be fast, scalable, and secure. Writing clean, reusable, and reliable Java code that follows best practices. Working with databases, caching, and messaging systems to ensure smooth performance and real-time gameplay. Collaborating with Product, QA, Front-End, and DevOps teams More ❯

clients. Solution is scalable to cover multiple locations and meet latency requirements. Team is growing fast and now we are looking for a strong and motivated FX Risk Lead Java Developer. Key Responsibilities Design, develop, and maintain Java-based microservices for high-throughput application Integrate and optimize Apache Ignite based solution: in memory data grid for FX trades … pipelines Conduct performance tuning, code reviews, and troubleshooting production issues Document system architecture, design decisions, and development processes What we want from you Strong hands-on experience with Core Java and multithreading in high load system Practice with JVM performance optimization and memory profiling Familiarity with distributed systems architecture and in-memory computing concepts Proven experience with in-memory More ❯

improvement. Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents.We enable Skill Set Java (11) Junit 5 React React Testing Library (Frontend Unit testing) Cypress (Frontend E2E Testing) Spring Boot (Microservice Architecture) Sybase Mongo DB Kubernatis Understanding on Cloud infra (Snowflake) Roles & Responsibilities More ❯

Role: Senior Java Full Stack Engineer Industry: Consultancy (Public/Government & Private Sector) My client is a global leading Digital Consultancy specialising in Cloud Adoption, Digital Architecture/Transformation & NextGen AI Solutions, with offices in London, Manchester, Newcastle and Glasgow, providing flexi working model (option of remote or hybrid with ad hoc client site travel). They are looking … for a Senior Java Full Stack Engineer's (Jnr-Mid level) to join a rapidly growly team, building cutting-edge digital solutions, primarily within Government, Finance, Retail & Energy sectors. Top end budget of £70k + disc bonus + full benefits + flexi working (option of remote or hybrid plus ad hoc client site travel) Primary requirements as a Senior … Java Full Stack Engineer: Must be eligible for SC Clearance Extensive experience of building microservices with Java (Spring Boot) (and NodeJS as a bonus) Experience with cloud technologies such AWS or Azure Experience with CI/CD (Gitlab, GitHub, Jenkins) Experience using version control software - Git Experience using online version control tools – Bitbucket, GitHub, GitLab etc Experience using More ❯

I am currently working with an exciting digital solutions provider who are actively seeking 2 Senior Java Developers to lead development best practices for a brand-new business-critical project on a permanent basis. What you'll need to succeed : Extensive Java Development in a highly agile environment while owning and leading development best practises. Previous experience working More ❯

I am currently working with an exciting digital solutions provider who are actively seeking 2 Senior Java Developers to lead development best practices for a brand-new business-critical project on a permanent basis. What you'll need to succeed : Extensive Java Development in a highly agile environment while owning and leading development best practises. Previous experience working More ❯

Permanent Java Full Stack Developer - Data Warehouse - Hedge Fund - Angular, Kafka, RDBMS, Rest API Our client is looking for a skilled Full Stack Developer to enhance our Enterprise Reference Data platform, the central source of financial data across the firm. You will play a key role in evolving our data platform, services, and tools to meet new … customer requirements. The platform is built on a modern tech stack, including Angular, Java, Kafka, and AWS (EKS), offering scalable and streaming capabilities. Key Responsibilities Develop and maintain full-stack solution using Java (Spring Framework, GraphQL, Rest API, Kafka) and Angular. Ensure proper ingestion, curation, storage, and management of data to meet business needs. Write and execute unit … teams to solve complex data challenges. Closely work with users to gather the requirements and convert them into an actionable plan. Qualifications Minimum of 5-7 years' of professional Java development experience, focusing on API-and Kafka based architectures. Minimum 4-5 years of strong Angular development skills with Back End integration expertise. Hands-on experience with automated testing More ❯

technology. The ideal candidate will possess: Financial Markets Expertise: Demonstrated prior software development experience within financial markets, preferably with exposure to electronic trading systems or low-latency environments. Core Java Proficiency: Expertise in Core Java development (version 1.8 or higher), with a deep understanding of its ecosystem, best practices, and performance characteristics. Advanced Data Structures & Concurrency: Excellent command More ❯

currently going through a period of exponential growth and are enjoying record profits The business is actively expanding as there is additional headcount for a number trade platform specialist Java Development with a focus on either/or Quantitative Development or low-latency performance optimization. You will be working on greenfield projects to build out and enhance their low … latency trading systems. THE ROLE: Working in a fast-paced trading environment as a Quant Developer, where you will collaborate closely with expert traders, quantitative analysts, and engineering specialists to craft and fine-tune trading strategies across both spot and derivative markets. Based directly on the trading floor, you will play a crucial role in enhancing execution logic, automating … alerting, and fault tolerance SKILL/EXPERIENCE REQUIRED: Expertise in market-making or algorithmic trading, including deep understanding of order book dynamics and pricing techniques Proven track record in Java programming, specifically in building fast, low-latency trading systems Strong familiarity with market data and order execution protocols (e.g. FIX, binary, or custom APIs) Hands-on experience with JVM More ❯

hands-on experience with High-Frequency Trading (HFT) platforms while contributing directly to the continued growth and success of the business. KEY RESPONSIBILITIES: Design, develop, and maintain high-performance Java applications and components, ensuring code quality, efficiency, and compliance with best practices. Build a thorough understanding of end-to-end risk data flows to support reliable and compliant system … maintainability. REQUIRED - SKILLS/EXPERIENCE: Proven experience within traditional financial markets (e.g., spot FX, rates, or equities). Minimum of 5 years hands-on software development experience in Core Java (J2SE). Strong understanding of object-oriented programming principles, with expertise in applying design patterns to deliver scalable, performant, and secure solutions. Demonstrated ability to write clean, efficient, and More ❯