26 to 50 of 77 Java Developer Jobs in London

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 experience with Java and Python programming languages. This is a hands-on role suited to an experienced Senior Developer with strong core Java expertise and a solid understanding … 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 Python . Strong understanding of microservices, distributed systems, and cloud technologies. Experience acting as a trusted advisor to key clients, helping shape their technology strategy 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 ❯

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 ❯

Possibility of remote work: TBC Contract duration: 6 months Location: London JOB DETAILS Role Title: JAVA Developer Required Core Skills: Candidate should have experience working in AWT, Swing, JavaFX, and UI testing. The person should have worked on desktop, client-server, rich client application development. Advanced knowledge of Java and associated ecosystem (Java 17, IntelliJ/ More ❯

Senior Java Quant Developer - Equity Derivatives United Kingdom Information Technology (IT), Quantitative Analysis, Sales and trading Investment Bank Job Reference # 319773BR City London Job Type Full Time Your role Do you want to play a key role in the front-office of an investment bank? Are you passionate about electronic trading technology? Do you have a background … in real-time low latency pricing and able to use your skills to build robust and scalable Java server systems? At UBS, we re-imagine the way we work, the way we connect with each other - our colleagues, clients and partners - and the way we deliver value. Our quantitative development teams work inside the investment bank business making us … more responsive, more adaptable, and ultimately more innovative. We're looking for a senior Java developer to: • design, develop and support the US-centric variant of our Equity Derivative pricing and electronic trading platform, working alongside business users to translate complex business and regulatory requirements into innovative solutions. • apply a broad range of software engineering practices to ensure More ❯

One of the UKs most iconic omni-channel retailers is looking for a Lead Java Developer to join their expanding digital engineering function. This position requires deep expertise in Kotlin or modern Java , strong architectural understanding of microservices , and a passion for technical leadership and mentoring. Experience working within ecommerce, mobile, or customer-facing digital platforms is … with agile product teams, and contribute to a high-traffic platform used by millions of customers. Key Responsibilities: Design, build, and maintain scalable, high-performance services using Kotlin or Java Provide technical leadership and mentoring to other engineers in the team Contribute to solution architecture and strategic technical direction Build, integrate, and maintain REST APIs and backend services Champion … take on people management responsibilities for engineers Stay updated with emerging backend and cloud technologies Key Skills & Experience 5+ years of back-end development experience using Kotlin or modern Java Expertise in microservice architectures and frameworks like Spring Boot or http4k Deep understanding of RESTful API design and integration Proven experience mentoring engineers and contributing to high-performing teams More ❯

has helped many clients achieve 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 low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the UK … or US and 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-throughput backend systems using Core Java … discussions, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 5+ years of experience in Core Java development with a focus on performance and memory optimization. Proficient in SpringBoot and microservice-based architecture. Proven experience with low-latency, high-throughput applications (sub-millisecond response times a More ❯

expansion. This creates new opportunities for driven and skilled individuals to join one of the fastest-growing consultancies globally. Job Description We are seeking an experienced Senior Full Stack Java Developer to join our UK Digital & Cloud Practice. Our Digital Practice is expanding rapidly and there will be an opportunity for you to achieve medium and long-term … CD Pipelines and SOLID/DRY principles. Hands-on developing/coding role using the following technologies: Frontend (JavaScript/TypeScript or Angular or React or Node). Backend (Java, SpringBoot, Hibernate, Kotlin). Experience in estimation and sizing. Integration experience. API Design experience. Cloud experience. Appetite to work with emerging AI technologies. SC Eligible. Additional Information Why Version More ❯

Java Fullstack with Camunda developer at N Consulting Ltd Location: London Job Type: Contract Experience: 5+ Years (including 1.5+ years in Camunda BPM) Domain (Optional):Banking We are looking for an experienced Java Full Stack Developer with Camunda BPM experience to design and develop scalable, workflow-driven web applications. This role combines deep backend expertise in … Java/Spring Boot with modern frontend development skills and strong understanding of Camunda BPMN process orchestration. Design and develop BPMN 2.0 workflows and DMN rules using Camunda Modeler . Develop backend services and APIs using Java , Spring Boot , and microservices architecture . Build dynamic, responsive UIs using Angular , React , or Vue.js . Integrate Camunda workflows with REST … other developers to deliver complete solutions. Deploy and monitor applications using Docker , Kubernetes , and CI/CD pipelines. Required Skills & Experience: 3-5 years of hands-on experience with Java , Spring Boot , Spring Cloud , REST APIs Strong expertise with Camunda BPM (v7 or v8) - BPMN, DMN, external tasks, process orchestration Experience in Angular , React , or Vue.js Other Technologies: Integration More ❯

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Select how often (in days) to receive an alert: Job Title: Java Developer - Contract (Day Rate - PAYE) Job Code: 10765 Country: GB City: London Skill Category: IT\Technology Description: Role Type: Contractor (Day Rate Contractor - PAYE only) Location: London (Hybrid … Data Services (Products, Books & Counterparties), Risk, Investment Banking, Legal, Audit, Compliance, HR, Corporate Services, & Real Estate divisions across the globe. Role and Responsibilities Analysis and software development for standalone Java components which provide the middle and back-office solutions for BFSI Application Design, develop and unit-test his deliverable - as per exit criteria Responsible for seeing the delivery through … well Ownership - Ability to independently design and execute solutions Adopt best practices for software development Client Centricity - Balancing solutions between stakeholder expectations and future scalability Must Have Experience Core Java Spring framework (DI, AOP, etc.) Design Patterns RDBMS - Sybase, MS SQL Server etc. Unit Testing framework Web services (Rest or SOAP) Microservices Understanding of OOPs concept XML/XSLT More ❯

grow together and collaborate as one team. All of these while having fun truly makes FlexTrade a wonderful place to work. The Team We are looking for an amazing developer to join our team building FlexTrade's OEMS platform, FlexONE, which is our state-of-the-art, fully integrated Order Management System and Execution Management System. This system was … product was first developed, and our London office, which is now predominantly responsible for development of the UI for the application. The London team is an experienced group of Java and Scala developers, with a deep understanding of UI and UX design. We deliver our software using agile methodologies, and we encourage best practices such as TDD, code reviews … meet customer or product requirements, through implementation, QA and delivery. Each team member works on every part of the system. About You FlexTrade are seeking a skilled Scala or Java developer to join the FlexONE London team. The successful candidate will be someone with a passion for development who can complement what we do and bring interesting ideas More ❯

the basis of our patient-facing digital consultations and clinician-facing decision-making tools. We are passionate about health care and we are looking for a talented and thorough Developer to join the team to continue with revolutionizing health care for the benefit of millions of patients in the UK and across the world. You will share the IT … of frontend and backend developers, clinicians, algorithm builders and Quality Analysts, who thrives on delivering robust, tested and high-quality solutions. Key Responsibilities You will be a hands-on Java developer with good commercial awareness and stakeholder management skills. As part of this role, you will be required to design, implement, test and roll out new medical services … goals. You are conscious that bringing business value to each development increment is key to maintaining the client’s competitive lead. Experience and Qualifications Essential: Previous development experience with Java 1.8+, Spring Boot and MySQL (2-3 Years+) Familiarity in microservice architecture Understanding of DevOps CI/CD methodologies, working with Docker, Kubernetes, GitHub Actions, etc Experience with cloud More ❯

best practices and a rigorous, proven methodology, we help your organization realize the benefits of modern enterprise technologies - and see real bottom-line results Responsibilities Develop, enhance, and maintain Java-based applications using Java 1.8, JSF, Spring Boot, web services, Azure, Angular, JQuery and DB2. Collaborate with cross-functional teams to gather requirements and translate them into technical … the smooth operation of applications. Participate in code reviews to ensure code quality and maintainability. Optimize application performance by identifying and resolving bottlenecks. SkillsMust have Proven experience as a Java Developer with strong proficiency in Java 1.8. Solid understanding of JSF (JavaServer Faces) and Spring, Spring Boot, Angular UI frameworks. Strong experience in Velocity templates, iBatis or More ❯

Our client , a leading investment bank, is seeking a highly skilled Java Developer to join their Electronic Trading Technology (ETT) team. This is a 12-month contract role, operating inside IR35 , with a hybrid working model based in South London . Key Responsibilities Deliver enhancements to algorithmic trading strategy engines Contribute to core framework-level development Collaborate directly … gather and refine requirements Participate across the full software development lifecycle: requirements gathering, coding, unit testing, code reviews, and second-line support Essential Skills & Experience Strong expertise in core Java APIs (collections, concurrency, NIO) Solid understanding of multithreaded systems , low-latency I/O , and Java garbage collection Familiarity with design patterns (Observer, Factory, Singleton) Proven experience in More ❯

Our client , a leading investment bank, is seeking a highly skilled Java Developer to join their Electronic Trading Technology (ETT) team. This is a 12-month contract role, operating inside IR35 , with a hybrid working model based in South London . Key Responsibilities Deliver enhancements to algorithmic trading strategy engines Contribute to core framework-level development Collaborate directly … gather and refine requirements Participate across the full software development lifecycle: requirements gathering, coding, unit testing, code reviews, and second-line support Essential Skills & Experience Strong expertise in core Java APIs (collections, concurrency, NIO) Solid understanding of multithreaded systems , low-latency I/O , and Java garbage collection Familiarity with design patterns (Observer, Factory, Singleton) Proven experience in More ❯

the company has built a reputation for delivering high-quality technology services across industries including banking, healthcare, telecommunications, and retail. The leading consultancy firm is seeking for a skilled Java Developer to join on a 6-month contract with strong potential for extension. Additionally, this is a hybrid role, requiring on-site attendance 3 days per week at … and implement fault tolerance, graceful degradation, and recovery mechanisms across complex platforms. Demonstrable knowledge of improving the Software Development Life Cycle (SDLC) through automation, better configuration management, and streamlined developer workflows. Experience promoting a shift-left approach - embedding testing, security, and code quality earlier in the development process to accelerate delivery and reduce defects. Solid understanding of core Java, multithreading, system integration, and enterprise architecture best practices in high-throughput environments. Skills/Must have: 5+ years experience working with core Java and distributed systems, ideally in high-performance or low-latency environments such as Real Time trading platforms. Proven ability to work with large volumes of Real Time data, designing systems that can elastically scale to More ❯

Role: Java Developer Location: London (Hybrid) Day Rate: Up to £450 P/D Contract: 6 Months Rolling This firm is a leading provider in software and data engineering, that drives technological and organisational transformation for some of the world’s leading organisations. You will be working alongside highly skilled and enthusiastic computer scientists. The culture is highly … real-world business problems through technology and are confident in contributing their expertise to challenge conventional thinking and present new ideas. Role Responsibilities (Full Spec. avail): Develop clean, efficient Java code for web, desktop, or mobile applications Write unit tests, debug issues, and ensure reliable software performance Collaborate with developers, product managers, QA, and DevOps teams Contribute to scalable … and maintainable system design and architecture Refactor code, optimize performance, and manage technical debt Successful candidates: Experience working with Azure Understanding of the financial services desirable Strong understanding of Java mandatory A degree in Computer Science or equivalent If the above is of interest please apply or reach out to asummers@hunterbond.com for more details More ❯

Role: Java Developer Location: London (Hybrid) Day Rate: Up to £450 P/D Contract: 6 Months Rolling This firm is a leading provider in software and data engineering, that drives technological and organisational transformation for some of the world’s leading organisations. You will be working alongside highly skilled and enthusiastic computer scientists. The culture is highly … real-world business problems through technology and are confident in contributing their expertise to challenge conventional thinking and present new ideas. Role Responsibilities (Full Spec. avail): Develop clean, efficient Java code for web, desktop, or mobile applications Write unit tests, debug issues, and ensure reliable software performance Collaborate with developers, product managers, QA, and DevOps teams Contribute to scalable … and maintainable system design and architecture Refactor code, optimize performance, and manage technical debt Successful candidates: Experience working with Azure Understanding of the financial services desirable Strong understanding of Java mandatory A degree in Computer Science or equivalent If the above is of interest please apply or reach out to asummers@hunterbond.com for more details More ❯

We are currently recruiting an experienced Java Developer to join the FX eTrading team at a leading investment bank, working on a range of high-impact, business-facing projects. In this role, you will collaborate closely with traders and quants to gather business requirements and contribute to the design and development of high-performance, pre-trade applications. Key More ❯

per annum Benefits and Bonus Contact email: Job ref: JD/PT/HH_ Startdate: ASAP Our client is looking for an experienced Java Developer to join a dynamic Post Trade technology team. As part of an established group responsible for critical post trade functions including payments, netting, and confirmations. You'll play a pivotal role in delivering … is a great opportunity for someone who enjoys solving complex engineering problems and wants to see their work have immediate business impact. Key Responsibilities Design and develop enterprise-grade Java applications in a distributed, microservices-based architecture. Drive resiliency and high-throughput standards within post trade systems. Collaborate closely with cross-functional teams including QA, product, and business stakeholders. … Contribute to architectural decisions and long-term technical strategy. Engage in continuous improvement efforts across code, infrastructure, and processes. Core Java (multithreading, performance tuning, design patterns) Microservices Architecture - building, scaling, and maintaining services Messaging - Kafka is currently used; MQ experience is also valued Database - Oracle or similar RDBMS Systems Design - experience contributing to or leading architecture discussions Post Trade More ❯

You will be working with a London-based investment bank within a market-leading front-office team as a mid-level Java Developer working on business-critical solutions for a range of stakeholders, including traders and quants. What you'll need to succeed 5 years' Java Development experience within financial services. Strong experience with cloud, ideally Azure. More ❯

Chicago. We pride ourselves on a diverse, friendly, dynamic culture - with a focus on internal promotion and developing our people. Scope of Role ITRS Group is looking for Senior Java Engineer in London. Reporting to our Engineering Manager, you will sit in the Platform Team and form part of a wider global Engineering Team. The Core Platform layer is … in anticipation of wider customer adoption through 2025. Our role offers a permanent, full-time position working from our London office on a hybrid work schedule. As a Senior Java Software Engineer, you will: Participate in all phases of the product lifecycle, including design, development, documentation, testing, integration, deployment, and ongoing support. Participate in mentoring relationships - both giving and … ongoing personal growth. There will always be opportunities requiring it. We have an ambitious L&D policy to support your learning and growth Requirements You are predominantly a backend Java developer with at least 7 years of experience building complex distributed systems. You have built applications from the ground-up with a deep understanding of core Java More ❯

Contract Opportunity: Java Quant Developer - Curve Building & Pricing Infrastructure - Inside IR35 A leading investment bank in London is seeking a Contract Java Quant Developer to join a front office team focused on rebuilding a strategic curve construction and pricing platform. This role involves close collaboration with Quants and Traders to deliver a flexible, user-driven system … curves. Support user-defined convexities, turns, and other levers to manage curve shape dynamically. Allow for multiple curve instances (e.g., per user, per region). Required Skills & Experience Strong Java development skills. Solid understanding of Interest Rate and FX curve building , including: The concept and process of curve construction. Instruments used across short, mid, and long ends of the 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 ❯

Senior Technical Java and C# .net Software Developer We are currently recruiting a Java with C# .net Senior Software Developer ?" who can be the lead in the team. You must have at least 5 to 7 years proven track record of developing software with Java and C# .net framework coupled with SQL Server. Ability to … manage risk identification and risk mitigation tactics associated with the designs. Role-specific knowledge: · 5+ years of senior technical lead. · 5+ years of strong hands-on experience as a developer working on JAVA or .NET Framework standards and technologies - C#.NET, ASP.NET, AngularJS, SQLServer, Web Services, Cloud Platforms, AJAX, JQUERY, XML/JSON, HTML, CSS · Retail/digital technology More ❯