1 to 25 of 77 Java Developer Jobs in London

Lead Java Developer/Backend Software Engineer London to £135k Do you have advanced Java technical knowledge combined with team leadership skills? You could be progressing your career at the Investment Management arm of a global bank. As a Lead Java Developer you will head up a small, globally distributed team responsible for writing production … quality Java code used for pricing and hedging FX instruments and overseeing the algorithms' performance intraday. You'll spearhead a project to modernise the FX Risk and post-trade platform to a modern microservices environment, collaborating with the business and providing technical guidance, code reviews and 1-2-1s to develop the engineers in your team and ensure … Location/WFH: You'll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including multithreading You have team leadership experience, including technical project leadership, code reviews, 1-2-1s, developing others You have experience in a Capital Markets environment, FX preferred More ❯

Senior Java Developer - Remote Working - SC Cleared Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging in the entire software development lifecycle, from gathering … projects Key skills and experience: Previous experience working within a consulting organisation or the public sector is essentail Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. More ❯

Vacancy for Senior Java Developer at The National Archives Vacancy for Senior Java Developer at The National Archives 20 December 2021 Remote, Kew Up to £700 per day Fixed Term An experienced Java developer is required to design, implement and test improvements to the performance and features of the DROID file identification tool, starting … with enabling DROID to be integrated with cloud-based workflows. The specialist will be the only developer actively working on DROID. The wider team is a Product manager, Technical Architect, Lead and Senior Developers (available for discussion of technical options, code review, acceptance). The specialist will have access to users: Digital Archivists (users of the current tool, available More ❯

Java Developer Contract Are you a passionate Java Developer with expertise in reactive programming frameworks like Vert.x and Spring WebFlux We're hiring for a leading global banking client based in London , working on cutting-edge digital transformation projects within their core banking platforms. Key Responsibilities Design and develop scalable, high-performance backend systems using Java … architectures. Contribute to system architecture decisions and ensure best practices in coding and testing. Participate in Agile ceremonies and support continuous integration and delivery pipelines. Essential Skills Strong core Java development experience. Hands-on expertise with Vert.x and Spring WebFlux . Solid understanding of reactive programming principles. Experience with RESTful APIs , microservices , and event-driven architectures . Familiarity with More ❯

A Java Developer is required for an Internet of Things (IoT) team within a top investment bank. As a Java Developer, you will be working on building applications across a broad range of functions that drive the company's decision-making and strategy. The division is completely new, leveraging IoT technologies on a Green Field Project … to develop Smart solutions that provide a consistent user experience across 36 countries. Key Responsibilities Developing and maintaining Java applications Liaising with vendors and global teams Required Skills Java JavaScript Web Services (REST) AngularJS More ❯

Job Description: Java Developer - SC Cleared Hybrid Working - Manchester OR Newcastle 6 months - Starting in October £500-£550 Inside IR35 Talent Consulting is seeking multiple Java Developers to join a high-profile government organisation on an exciting new programme of work. You'll be part of a collaborative team working on modern, large-scale services that make … a real difference. We are looking for Java developers who can: Transform business requirements into production-ready code Ensure system robustness, resilience, and stability Develop and maintain a fit-for-purpose automated test suite Produce comprehensive technical documentation for wider consumption Contribute to the design of larger systems as part of a team Collaborate across teams, working with Lead … to explore technical solutions Review specifications with colleagues and apply agreed standards and tools to design, code, test, correct and document programmes of medium to high complexity As a Java Developer you will have the following experience: Strong knowledge of software engineering best practices Hands-on experience with functional and non-functional testing Skilled in developing and maintaining More ❯

Full Stack Java Developer (90k-100k plus benefits and bonus) This is a hybrid role, 2 days in the office, 3 days remote What the role offers: Competitive salary with growth opportunities. Opportunity to work on cutting-edge fintech solutions. A collaborative and supportive team environment. Exposure to a wide range of technologies and the chance to shape … to building high-performance solutions for investment professionals. Our small, close-knit team thrives on collaboration, innovation, and technical excellence. As we expand, we're looking for a talented developer to join our team and play a crucial role in shaping our platform. Role Overview: As a Full Stack Java Developer, you will work across the full … stack, collaboratively contributing to front-end, back-end, system architecture, and infrastructure. You will be responsible for designing and developing scalable, robust software solutions using Java, with a focus on system design and performance. AWS experience is a plus, and financial industry knowledge would be beneficial but not a must. Key Responsibilities: Work on full-stack development, including front More ❯

Algo Trading Java Developer** (Contract) Duration: 12 Months (Possibility for extension) Location: London/Bromley/Hybrid (3 days on site) Rate: A highly competitive Umbrella Day Rate or Salary is available for suitable candidates About Us The ETT team is at the forefront of developing innovative solutions for low touch, low latency trading. Our focus on FIX … market. With a strong presence across AMRS, EMEA, and APR, we maintain a global perspective while catering to the unique needs of each region. Your Role As a core Java developer, you will be instrumental in enhancing our algorithmic trading engines that support benchmark algorithms, smart order routing, and internal crossing for the EMEA and global electronic business. … groups to capture essential requirements. Engage in all stages of the development lifecycle, including requirements gathering, coding, unit testing, and supporting deployments. Essential Skills and Qualifications: Proficient in core Java APIs (collections, concurrency, NIO). Experience with multithreaded systems and Java garbage collection. Familiarity with design patterns (e.g., Observer, Factory, Singleton). Strong background in test-driven development More ❯

Senior Full Stack Java Developer (100k-120k plus benefits and bonus) This is a hybrid role, 2 days in the office, 3 days remote What the role offers: Competitive salary with growth opportunities. Opportunity to work on cutting-edge fintech solutions. A collaborative and supportive team environment. Exposure to a wide range of technologies and the chance to … to building high-performance solutions for investment professionals. Our small, close-knit team thrives on collaboration, innovation, and technical excellence. As we expand, we're looking for a talented developer to join our team and play a crucial role in shaping our platform. Role Overview: As a Full Stack Java Developer, you will work across the full … stack, collaboratively contributing to front-end, back-end, system architecture, and infrastructure. You will be responsible for designing and developing scalable, robust software solutions using Java, with a focus on system design and performance. AWS experience is a plus, and financial industry knowledge would be beneficial but not required. Key Responsibilities: Work on full-stack development, including front-end More ❯

Exclusive 12-Month Contract Role Title: Senior Java Developer Location: City (3 days in office) Rate: £750 per day (umbrella) Start date: 1st September Duration: 12-months We are working exclusively with a major Financial Services business to provide a Senior Java Developer for a greenfield project. This project involves rearchitecting a trade capture system, transitioning … logic from Murex to a newly developed Java environment. Key Responsibilities: Design and develop high-performance Java applications. Rearchitect the trade capture system, ensuring seamless integration with existing systems. Collaborate with cross-functional teams to define, design, and ship new features. Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Requirements: Extensive … experience with Java 11+. Proficiency in distributed cache technologies such as EhCache, Redis, or Hazelcast. Significant experience in parallel processing. Strong background in Financial Services, with a preference for candidates who have worked in a post-trade environment. Experience with Kafka. Familiarity with Murex is an advantage. Knowledge of post-trade systems, including trade processing and trade flow. What More ❯

Principal/Lead Java Developer London - hybrid Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client's domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible We keep things simple … ll open the door to incredible opportunities and introduce you to a network of equally driven, like-minded professionals. Job brief We are looking for a Principal/Lead Java Developer to produce scalable and robust software solutions for our clients. You'll be part of a cross-functional team that's responsible for the full SDLC, from … and impact at a client, share experience and help develop those around you. Lead - Where required lead teams, projects and products Requirements and skills Proven experience in a Senior Java focused role Experience developing modern tech stacks Experience working in modern Cloud environments (AWS) Knowledge of back-end languages mainly Java (Kotlin, Scala or Go would be beneficial More ❯

Principal/Lead Java Developer London - Hybrid Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client’s domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible We keep things simple … ll open the door to incredible opportunities and introduce you to a network of equally driven, like-minded professionals. Job brief We are looking for a Principal/Lead Java Developer to produce scalable and robust software solutions for our clients. You’ll be part of a cross-functional team that’s responsible for the full SDLC, from … and impact at a client, share experience and help develop those around you. Lead - Where required lead teams, projects and products Requirements and skills Proven experience in a Senior Java focused role Experience developing modern tech stacks Experience working in modern Cloud environments (AWS) Knowledge of back-end languages mainly Java (Kotlin, Scala or Go would be beneficial More ❯

Principal/Lead Java Developer London - Hybrid Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client’s domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible We keep things simple … ll open the door to incredible opportunities and introduce you to a network of equally driven, like-minded professionals. Job brief We are looking for a Principal/Lead Java Developer to produce scalable and robust software solutions for our clients. You’ll be part of a cross-functional team that’s responsible for the full SDLC, from … and impact at a client, share experience and help develop those around you. Lead - Where required lead teams, projects and products Requirements and skills Proven experience in a Senior Java focused role Experience developing modern tech stacks Experience working in modern Cloud environments (AWS) Knowledge of back-end languages mainly Java (Kotlin, Scala or Go would be beneficial More ❯

Principal/Lead Java Developer London - Hybrid Who are we? Enablis is a technology delivery consultancy who partner with clients to accelerate digital roadmaps. By combining our deep knowledge and best practice experience with the client’s domain expertise, we are able to deliver technology solutions quickly, efficiently and as stress free as possible We keep things simple … ll open the door to incredible opportunities and introduce you to a network of equally driven, like-minded professionals. Job brief We are looking for a Principal/Lead Java Developer to produce scalable and robust software solutions for our clients. You’ll be part of a cross-functional team that’s responsible for the full SDLC, from … and impact at a client, share experience and help develop those around you. Lead - Where required lead teams, projects and products Requirements and skills Proven experience in a Senior Java focused role Experience developing modern tech stacks Experience working in modern Cloud environments (AWS) Knowledge of back-end languages mainly Java (Kotlin, Scala or Go would be beneficial More ❯

Job Opening: Core Java Developer Quant Capital is urgently looking for a Core Java Developer to join our high profile client. About the Client: Our client is a 20-man financial software business specializing in creating niche modeling and behavior monitoring applications for financial markets. Requirements: The Java code is very well written. We are … seeking tech-savvy individuals who are motivated by cutting-edge technology and the potential to earn a substantial income while pursuing their passion. If you have experience in Core Java Development, Financial Behavior Modeling, and are proficient in technologies such as JSE, J2EE, SQL, OCaml, and Scala, we encourage you to apply. This exciting opportunity is based in London. More ❯

Java Developer - eFX - Greenfield - Banking £110000 - £120000 per annum + Bonus, Pension, Other Benefits Contact email: Job ref: JD/1312/GC_ A leading Investment Bank is initiating a multi-year greenfield project to rebuild their FX Trading system. As such, they are looking to hire a Java Developer to work on multiple projects, including … directly with stakeholders to take requirements. Developing the core Algo and Order Management System. Understanding the FX business area. They are looking for people who: Have very strong core Java Development skills. Have an exceptional educational background in STEM. Ideally have exposure to working with Front Office stakeholders. Enjoy fast-paced, collaborative cultures. If interested, please apply through this More ❯

Java Developer Department: Technology Employment Type: Permanent - Full Time Location: London Description The Risk and Front-Office Reporting team is responsible for the management of all post-trade data consumed by the front-office, as well as maintaining our real-time positions critical for correct trading of the Execution platform. This means we own systems to calculate P … managers, traders and the market risk team to understand the reporting they require to make the right decisions for the company. The platform utilizes a range of technologies, including Java, SQL Server/Snowflake databases, Python and C#. We are in the process of migrating more of our data to Snowflake, leveraging technologies like AWS Batch, Apache Flink and … as position and price changes, trades and reference data updates. Processing this data efficiently and robustly is a challenging but rewarding facet of this role. We need an experienced developer to work on a range of projects across the systems - with time spent on both legacy systems, new development and migration of systems to new environments and approaches. Training More ❯

Vacancy for Lead Developer Java/Scala at The National Archives (UK) Vacancy for Lead Developer Java/Scala at The National Archives (UK) 23 January 2023 London Full-Time Person specification About you You are an enthusiastic and organised individual who is keen to join a growing team and make a positive contribution. You have … digitised history from the 11th to the early 21st century are all to be preserved in the system. We currently operate a series of workflows constructed predominantly in Scala, Java, XSLT and XML Schema running in a Linux environment and we expect Cloud services to play a large role in our future architecture. As a lead developer you … will be responsible for helping to set technical direction, mentoring staff, undertaking code review as well as writing high quality, robust code yourself. You will be an expert in Java and/or Scala and familiarity with AWS and Linux would be an advantage. You will be thinking about the future impact of technology decisions. You will shape the More ❯

Exciting opportunity for a Java Developer to join an gaming company, to join an award winning and forward-thinking gaming company in Southwark, London. The candidate will be expected to be able to give design recommendations and improve and maintain the current codebase. A love of mathematics is a distinct advantage for a role that relies heavily on … statistics and probability. Experience: • Experience of development of stable, scalable Java applications and services. • Experience of mathematics associated with statistics, standard deviation and probability, ideally to A level or higher. Responsibilities: • Building game engines on the current GMR Game Engine Framework • Extending the Game Engine Framework to accommodate unique game designs • Building improvements into the core Game Engine Framework … Building tools and systems to improve game simulation and RTP calculation Essential skills: • Experience of mathematics associated with game design • Experience of Java Development • Scrum and Agile Software Development Methodologies Preferable skills: • Experience of coding algorithms • Spring Framework including Spring Boot • SQL and RDBMS methodology • Git, Maven & Nexus • Continuous Integration • Docker • MySQL Should you have any questions or wish More ❯

to collect, connect and understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments. Job Title: Junior Java Software Developer Requisition ID: 121988 Location: Frimley - Hybdrid working (1-2 days per week onsite) Grade: GG08 - GG09 Referral Bonus: £5,000 Are you passionate about working with … cutting edge technology, and self-motivated to deliver exciting new capabilities? Are you an experienced Java developer who likes a challenge and is keen to keep your skills current and even cross train into new technologies? As an experienced Java Developer in BAE Systems AI, you'll be working with our international customers to enhance and More ❯

Java Fullstack Developer Hybrid Remote in the U.K | Up to £55k (DOE) | Leading Digital Consultancy *Must be security clearance eligible* Ready to level up your development career? Join one of the UKs most exciting and fast-growing digital consultancies as a Java Fullstack Developer and play a key role in delivering innovative solutions for high-profile … working and the support of a forward-thinking team. What Youll Do: As a key part of our engineering team, youll: Build and maintain scalable full-stack applications using Java (Spring Boot) and JavaScript/TypeScript (React) . Contribute to major projects from day one, working closely with cross-functional teams in a highly collaborative environment. Engage with emerging … . Work on impactful government and public sector projects, enhancing services millions rely on. What Youll Bring: Eligibility for security clearance (UK-based only) At least Three years commercial Java backend (Spring Boot) development experience Proficient experience with JavaScript/TypeScript , ideally with React Hands-on familiarity with GIT, CI/CD , and modern development practices Bonus points for More ❯

We are working with a leading client in the technology sector who are seeking several Senior Java Developers to join their growing team in London. Candidates MUST have Java and another OOP programming language (ideally Python - but would consider others) as well as experience working for a software/tech consultancy. This is a hands-on role suited … to an experienced Senior Developer with strong core Java expertise and a solid understanding of modern software engineering practices. You'll be contributing to the design and development of high performance, scalable systems while mentoring junior team members and playing a key role in technical decision-making. Key Requirements: Extensive experience in Java development plus experience with More ❯

Job Opportunity in London My client is based in London. They are looking for a Lead Developer with experience in Cryptocurrency, Docker, Scala, Haskell, Functional Programming, O'caml, and Java. Talented programmers in any language are encouraged to apply. Job Details: Type: Contract Compensation: £100,000 per annum + benefits or up to £750 per day Quant Capital is … urgently seeking a Scala, Functional Developer, or Java Developer to join their team. This role offers an opportunity to work at the cutting edge of technology with the potential for significant earnings. More ❯

Skills: Java Scala Spring Hibernate Web Cloud Bash CSS Cucumber JSP JUnit JavaScript Jenkins MariaDB Nginx Python REST React Redux SCSS TDD Tomcat TypeScript jQuery Job Description: This remote position requires two days a month on-site in London. The offered rate for this role is £500.00. Contribute to the design and architectural decisions surrounding our software. Write high … quality code using technologies such as Java, Scala, Spring, and Hibernate. Ensure best practices in coding standards, testing, and documentation. Work as part of an agile team. Salary: £40,000 - 70,000 per year Requirements: We are looking for a Fullstack Java Developer who meets the following criteria: A degree in a numerate discipline or an equivalent … qualification in computer sciences. A minimum of 5 years of experience as a Java web developer. More ❯

We are searching for a talented and experienced Senior Java Developer to join our growing team. You will play a key role in developing and maintaining mission-critical Java applications for our clients in the financial sector. You will collaborate closely with business analysts, designers, and other developers to ensure the successful delivery of high-quality software … solutions. Requirements Minimum 5 years of Java development experience. Hands-on experience with Java alongside Kotlin, Go, or Python. Application design, software development, and testing expertise in an Agile environment. Experience with the Spring ecosystem and Hibernate. Familiarity with AWS or Azure and DevOps technologies like Docker, Kubernetes, and Terraform. Proficiency in CI/CD pipelines and API More ❯