1 to 25 of 2,121 Java Jobs in London

Senior Java Engineer (Contract) – Greenfield Fintech Platform Location: London/Hybrid (1 day/week in office) About the Role We are seeking an exceptionally skilled Senior Java Contractor to join a high-impact team building a next-generation algorithmic trading engine. You will work on low-latency, high-throughput … microservices, owning features from architecture design to production deployment. Key Responsibilities Architect, build, and optimize scalable back-end services using Java 21+ and Spring Boot. Partner with product and risk teams to deliver resilient event-driven architectures. Drive engineering best practices, including TDD, automated CI/CD pipelines, and rigorous ...

approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced Senior Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate will have … strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable. Key Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute to architectural decisions. Develop ...

London-based trading company is looking for an experienced Java Engineer to join their technology team on an initial 6-month contract. This role is well suited to a backend-focused engineer who enjoys building robust, scalable Java services using modern frameworks, working closely with product, trading, and engineering teams. … Role Designing and developing backend services using Java and Spring Boot Building and maintaining RESTful APIs and event-driven services Writing clean, testable, and well-documented code Collaborating with stakeholders to deliver new features and system improvements Supporting and enhancing existing trading and risk platforms Participating in code reviews ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation in our DNA. … high-performing engineering squad, building and operating business-critical digital services.This is a backend-led fullstack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services, APIs and event-driven workflows. You will also contribute to modern ...

JavaScript and/or TypeScript. Experience with modern front-end frameworks such as React. Experience developing back-end services using technologies such as Node.js, Java, Spring Boot or Python. Experience developing and consuming APIs and integration services. Experience working with AWS and/or Microsoft Azure. Experience with Git-based ...

applications Experience with JavaScript and/or TypeScript Experience with modern front-end frameworks such as React Experience developing back-end services using Node.js, Java, Spring Boot or Python Experience developing and consuming APIs and integration services Experience working with AWS and/or Microsoft Azure Experience with Git-based ...

Role ProfileThe Senior lead Scala Engineer will play a key role in the engineering and delivery of a critical market‐infrastructure service within the Equities platform, with a strong focus on AWS cloud‐native development. ...

Senior Java Engineer – Financial Services Are you a strong, hands-on Java Engineer with experience building high-performance, distributed systems within Banking or Financial Services? We're hiring on behalf of a leading FinTech consultancy that designs and delivers business-critical platforms for some of the world's largest financial … institutions. Previously we've been particularly focused on engineers coming directly from payments, but we're now keen to speak with strong Java Engineers from across the wider Financial Services market. This could include Banking, Payments, Cards/Merchant Acquiring, Trading, Capital Markets, Investment Banking or other high-volume financial ...

delivering software that makes a real business impact. What You'll Do Design, build and maintain scalable, secure and resilient backend systems using modern Java and the Spring ecosystem, alongside rich, responsive frontends built with React. Lead technical design and architectural discussions, ensuring solutions are maintainable, performant and aligned with … culture of continuous learning, innovation and technical excellence. What You'll Bring Technical Expertise You’ll have strong commercial experience with: Modern Java (Java 8+) including Streams, Lambdas and Optional React, including modern hooks-based development and state management Spring Boot and the wider Spring ecosystem Spring Data JPA/ ...

Scrum, Kanban, DevOps, CI/CD, Automation First, BDD/TDD, DORA. Understanding of, and advocacy for, Agentic AI/Context Engineering Desirable: Engineering : Java, Vue, Angular, .Net Core Tools/Technologies/Infra : Docker, Kubernetes, Kafka, Azure, GCP, NoSQL, DNS Design : Serverless, cloud-native/PaaS, event driven ...

Experience Experience developing full stack applications using modern front-end and back-end technologies. Strong programming skills in languages such as JavaScript/TypeScript, Java, C#, Python, or Node.js. Experience with front-end frameworks such as React, Angular, or Vue.js. Experience building and consuming RESTful APIs and microservices. Knowledge ...

like JFrog, Nexus, etc. Good understanding on Containerisation solutions, e.g., K8, Docker, Kaniko, etc. Proficiency in at least one of the standard programming languages – Java/JavaScript, C#, Python, or similar Object-oriented programmingProficiency in at least one of the standard scripting languages – Terraform, Bash, Ansible, etc. Good understanding ...

Java Developer – FintechTo 65,000Quant Capital is urgently looking for a Java Developer to join our high profile client. Our client is a small fintech firm creating by one of the worlds best known personalities in fintech. They are known for solving one of the common problems in the retail … Review of designs/code and knowledge sharing are key to smooth organizational continuity. Two brains are better than one. Day to Day The Java Developer will: Design, develop, test and deploy micro services into the cloud (AWS)Supporting other business units investigating problems, querying data, and building tools ...

SDLC to rapidly comprehend large codebases, generate production‐quality code, and accelerate delivery. Required Qualifications 8+ years of professional software development experience in Java (Java 17+ preferred), with strong command of concurrency, collections, and modern language features. Demonstrated experience with AI‐assisted engineering tools (e.g., Claude Code, GitHub Copilot Agent ...

SDLC to rapidly comprehend large codebases, generate production-quality code, and accelerate delivery. Required Qualifications8+ years of professional software development experience in Java (Java 17+ preferred), with strong command of concurrency, collections, and modern language featuresDemonstrated experience with AI-assisted engineering tools (e.g., Claude Code, GitHub Copilot Agent Mode, Devin ...

regulated financial services environments, translating business, risk, compliance and operational requirements into pragmatic technical designs. Required skills Skill Area Technologies/Capabilities Engineering leadership Java, Spring Boot, .NET or Node.js, microservices, REST APIs, event-driven architectures, OpenAPI/Swagger, integration patterns Front-end engineering Data & integration SQL, NoSQL, data integration ...

Company DescriptionVersion 1 has celebrated 30 years in business and continues to be trusted by global brands to deliver technology and transformation solutions that drive customer success. Our deep expertise enables our customers to navigate ...

delivery planning. What We’re Looking For Experience as a Software Engineer with strong capability in one or more of the following: Backend development (Java Spring Boot, Maven, Python) Frontend development (JavaScript/TypeScript, React, npm) Proven experience designing, developing, and deploying scalable backend systems. Familiarity with DevOps, CI/ ...

REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). 3. Systems & Mobile Architecture (Android ART) Proficiency in Kotlin or Java on native Android environments, including background services, thread management, and Inter-Process Communication (IPC via AIDL/Binders). Understanding of event-driven architectures, local ...

solutions on time.* Build positive relationships with business stakeholders and rest of development teams# Skills and Experience required**Must have*** Strong commercial experience with Java for backend development.* Proven experience building solutions on AWS, ideally including serverless services (Lambda, API Gateway, AppSync, etc.).* Experience with Docker and Kubernetes ...

within Agile delivery teams What We’re Looking For Full stack experience within an agile team building enterprise‐grade web applications or backend services Java development with Spring Boot Front‐end development using modern JavaScript frameworks (e.g., React, Vue) Experience with cloud platforms such as AWS or Azure Containerisation ...

practice. Present solutions and technical progress to stakeholders. Experience you'll need as a Senior Full Stack Kotlin Developer Strong commercial experience with Kotlin , Java and the full software development lifecycle. Experience with Spring Boot, Spring Framework and microservices architecture. Exposure to Node.js, TypeScript, Express.js or Nunjucks. Experience with ...

best practices, reusable components and continuous improvement What we need Strong commercial experience designing and developing software Significant hands-on experience with C# or Java Strong knowledge of software architecture, design patterns and clean code Experience building REST APIs and microservices Experience developing user-facing web applications Strong cloud experience ...

orchestration patterns Strong software architecture and system design experience Strong background in: microservices architecture event-driven systems distributed systems Strong backend engineering experience using Java/Spring Boot or equivalent Experience working with: REST APIs Kafka/RabbitMQ/messaging systems Docker Kubernetes cloud-native deployments Strong understanding of security ...

development pods Strong grasp of RESTful API design, GraphQL, API versioning, and microservices architecture Working knowledge of backend technologies such as Node.js, Python, Java, or .NET Understanding of SQL and NoSQL databases and data modelling Familiarity with cloud platforms (AWS, Azure, or Google Cloud) and CI/CD, DevOps ...