151 to 175 of 680 Java Jobs in London

/about-us Key Tasks Own the Stack: Drive architectural decisions and set technical standards while maintaining deep, hands‐on expertise in our stack: Java, Spring Boot, and Kubernetes (k8s). Design APIs: Champion an API‐first mindset by designing, documenting, and ensuring the quality of robust, efficient HTTP/ ...

deployment. Technical Skills Solid programming proficiency (we are open to any experience but primary languages include: TypeScript and the JavaScript ecosystem, Python and Java). Hands‐on experience building and deploying AI agents or multi‐agent systems. Working familiarity with enterprise IT architecture, cloud platforms (AWS, Azure, GCP), and system ...

production environmentExperience with common design and architectural patterns coupled with a passion for writing clean code that is performant and well testedKnowledge of Java and Spring boot and experience with a messaging system, like Kafka, is a plus... but don't worry we don't expect you to know everything ...

advanced understanding of computing principles (e.g. stack/heap distinction, compiled/interpreted languages). Proficiency with at least one solution language (e.g. C++, Java, C#) and one utility language (e.g. Python, JavaScript, Perl, PowerShell). Ability to use and configure more than one major operating system. Ability to pick ...

maintains high-quality tools and complex automation processes to support continuous delivery and developer productivity Strong proficiency in programming languages such as Python, Java, C# with demonstrated experience in building robust systems or applications. Extensive background in software architecture and solution design, with deep expertise in microservices, distributed systems ...

Senior Java Engineer (AWS, REST, SOAP) - Hybrid - Sussex Daily rate: £500 - £700 (inside IR35) Duration: 6 months Hybrid: 2 days per week (Tues + Wed) Start: ASAP My new client is looking for a highly skilled Senior Java Engineer to join their engineering team. The ideal candidate combines deep technical … architectures, contribute to API and microservices development, and help drive best practices across the engineering organisation. Key Responsibilities Design, develop, and maintain high‐quality Java applications using Spring Boot. Build and optimise RESTful APIs and contribute to GraphQL service development. Develop cloud‐native solutions using AWS services such as Lambda ...

Jamf in London is seeking a Senior Software Engineer to contribute to the Jamf Insights web application, with a hybrid work model in London, United Kingdom. You will lead the technology transition, develop features for ...

Role Overview We are looking for a talented and passionate Senior Lead Java Engineer to join the SwapClear Interfaces development team, part of the SwapClear Technology function supporting the LCH Swap Clearing business. The team is responsible for designing, building, and supporting critical interfaces and systems that facilitate the clearing … operations. This Senior Lead Java Engineer role will focus on leading the team in designing, building and maintaining Java‐based applications and their related systems that are critical to the SwapClear Clearing operations. You will be worked in a scrum team and work collaboratively within an Agile environment to ensure ...

JPMorganChase is seeking a Lead Software Engineer in Post Trade Technology to drive secure, scalable technology products within an agile team. You will deliver production-grade code, mentor peers, and lead architectural discussions with vendors ...

United States Digital Space LLC in London is seeking a Senior Software Engineer to help lead a technology transition and build skills at an internationally recognized tech company. You will work on the web application ...

Integrating automated testing into CI/CD pipelines using tools such as Azure DevOps, Jenkins, or GitHub Actions. Writing clean, maintainable automated tests using Java, Python, C#, or JavaScript/TypeScript. Collaborating with multidisciplinary delivery teams to define effective quality strategies. Investigating test failures, identifying root causes, and improving automation … agile, collaborative environments. Essential Skills and Experience CurrentUK Developing Vetting (DV) clearance. Strong software development skills in at least one of the following: Java C# Python JavaScript/TypeScript Experience designing, building, or extending automated testing frameworks across API, web, or mobile applications. Hands-on experience with test automation tools ...

more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job Title: Senior Java Developer Location: Bromley & London - Hybrid ( 3 days in office is essential) Contract: 12 months with possible extension for one more year. Rate: £800 - £850 inside umbrella. … with the ongoing support and development of the Futures & Options and Collateral business for Global Markets, we are looking for a highly experienced, strong Java and Developer to join the technology teams in Bromley, London working on a range of applications for Collateral. The successful candidates should have the following ...

Senior Java Developer | Up to £140,000 | London (Hybrid - 2-3 days on site) I'm currently recruiting for a Senior Java Developer to join a leading technology team within a global banking organisation based in London. This is an exciting opportunity to work on complex, high-impact financial platforms … enterprise applications, modernising existing systems, building robust APIs and helping shape technical solutions within a large-scale environment. We're looking for a strong Java and Spring Boot developer with experience building enterprise-grade applications, working with microservices architectures and delivering secure, reliable software solutions. Banking or financial services experience ...

Senior Fullstack Developer to join a high-performing engineering squad, delivering business-critical digital services. This backend-led role focuses on Kotlin or Java (Java 17+), JVM ecosystem, APIs and event-driven workflows, with frontend work using React and TypeScript. You will collaborate with product managers, designers and engineers, turning ...

Qualifications: Strong knowledge and experience with programming languages (e.g., Java, Python) Proficiency in web technologies (e.g., HTML, CSS, JavaScript) Familiarity with relevant technologies (e.g., XML, XSD) Skills: Experience in using tools such as GIT, JIRA, ServiceNow, and working in SCRUM/Agile framework Experience of working with SQL, JS, React ...

lead the architecture and delivery of Prime Brokerage and Capital Markets platforms. You will design and build scalable, event-driven trading systems using Java and Kafka, and define cloud and container strategies with Docker and Kubernetes. This senior technologist role requires strong coding expertise, mentorship and a strategic focus ...

Software Engineer do? Software Engineers design, build, test and operate software systems. Day-to-day work mixes coding (typically in Python, JavaScript/TypeScript, Java, Go or Ruby), technical design, code review, debugging, system architecture decisions, and on-call incident response. UK engineers operate across many product areas: consumer apps ...

technical workstreams and contributing to the successful delivery of complex projects. What They're Looking For Strong programming experience in languages such as C++, Java, C#, Python or JavaScript. Experience designing and developing secure software solutions. Understanding of cyber security principles and secure development practices. Experience leading technical work ...

React or React Native Solid understanding of front‐end fundamentals (component design, state management, performance) Some exposure to a back-end language (e.g., C#, Java, Python, or C++) is beneficial Strong communication skills and a collaborative mindset What’s on Offer Highly competitive salary up to £100,000 for junior ...

focus on speed, scalability, and reliability. Strong product-oriented mindset, with end-to-end ownership of features and close collaboration across teams. Proficiency in Java (preferred) or solid experience with similar backend programming languages. Familiarity with messaging systems such as Kafka or RabbitMQ, and strong knowledge of relational databases ...

Product Owners and Domain Experts External Vendors and Technology Partners Skills & Experience Proven experience as a MuleSoft Developer with hands-on development in MuleSoft, Java, and Salesforce. Strong MuleSoft Anypoint Platform experience, including designing APIs, creating Mule flows, and managing MuleSoft runtime environments. Familiarity with REST/SOAP APIs, JSON ...

exceptional engineers. You'll also have the opportunity to broaden your technical expertise, working across AWS, SQL and DevOps, with the chance to develop Java skills over time. The team embraces AI-assisted software development and is passionate about using modern engineering practices to deliver better software, faster. Location/ ...

engineering background with experience building production-grade solutions (preferably 7-10 years of experience+) Experience working with full-stack applications -JavaScript/TypeScript, Python (Java is a bonus). Experience working with AI technologies from Agentic systems, to RAG/CAG, LLM applications. Experience with cloud ecosystems (GCP, Azure ...

proficiency with Ethereum, Hyperledger, or Corda , alongside smart contract development languages ( Solidity, Chaincode, DAML, or Rust ). Core Development: Strong background in languages like Java, Python, Go, or Rust . Cloud & DevOps: Solid understanding of modern cloud platforms ( AWS, Azure, or GCP ) and automated CI/CD deployment pipelines. Industry ...

/or multi-cloud set up is essential. Demonstrable basic development or scripting experience in one or more of the following languages: Bash, Python, Java, C#, Rust, Excel VBA Nice to haves Containerization (Docker/Kubernetes) in a production environment Monitoring tools in a production environment (Prometheus/Grafana/ ...