1 to 25 of 2,375 Permanent Java Jobs in London

personally, we ensure a bright future for NTT DATA and for the people who work here.NTT DATA is currently looking for a Senior Java Developer (hybrid: remote + London, Canary Wharf) for our growing team in the UK.Summary:We are seeking an experienced Senior Java Developer with strong expertise … Spring Boot, Microservices architecture, CI/CD pipelines, and DevOps practices to design, develop, and maintain scalable, cloud-native applications.Key Responsibilities:- Develop and maintain Java (Java 8+) applications using Spring Boot.- Design and implement Microservices-based architectures.- Build and expose RESTful APIs.- Implement and manage CI/CD pipelines ...

work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Java Developer is a technical position responsible for designing, developing, implementing, and maintaining application systems and programs in coordination with the wider technology team. The overall … application systems analysis and programming activities, ensuring the delivery of high-quality and robust software solutions. Responsibilities: Application Development: Design, code, and debug Java applications. Contribute to the entire software development lifecycle, from conception and design to testing and deployment. Technical Contribution: Collaborate with team members to solve technical challenges. ...

consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced 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.RequirementsKey Responsibilities:Design, develop, test, and maintain enterprise-grade Java applications.Assist with technical design discussions and contribute to architectural decisions.Develop scalable microservices ...

consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. The Role: We are seeking an experienced 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. RequirementsKey Responsibilities: Design, develop, test, and maintain enterprise-grade Java applications. Assist with technical design discussions and contribute to architectural decisions. Develop ...

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 ...

## 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 ...

Accepting applications until: 23 October 2026Job DescriptionYour Role: Java Developer – Digital Out of HomeAre you a Java Developer looking to be part of a team building cutting-edge, event-driven systems that power millions of digital advertising moments every day As a Java Developer within our Digital Out of Home … powers all digital assets across Global’s outdoor estate — from large roadside signs to the Transport for London network. You’ll work with modern Java microservices (Java 21, Spring Boot) deployed on Kubernetes (EKS on AWS), using CI/CD pipelines (Jenkins, Terraform) and observability tools such as Prometheus ...

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 … collaborative, low-ego team culture. What we are looking for Essential experience Strong commercial experience developing server-side applications with Kotlin or modern Java, ideally Java 17 or later. Good knowledge of the JVM ecosystem and common backend development practices. Experience designing, building and operating APIs and distributed services. Understanding ...

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/ ...

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 ...

performing engineering squad, building and operating business-critical digital services. This is a backend-led full-stack role. You will use Kotlin or modern Java, ideally Java 17 or later, together with the wider JVM ecosystem, to develop reliable services and APIs. You will also contribute to modern web interfaces … contribute to a collaborative, low-ego team culture. What's important to us Strong commercial experience developing server-side applications with Kotlin or modern Java, ideally Java 17 or later. Good knowledge of the JVM ecosystem and common backend development practices. Experience designing, building and operating APIs. Understanding of service ...

mgmt solutions 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 of Software ...

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 ...

stages of the 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 ...

data modeling: SQL, NoSQL (MongoDB, Cassandra) and performance tuning.Familiarity with messaging systems (Kafka, RabbitMQ) and asynchronous architectures.Strong programming experience in one or more languages (Java, C#, Python, JavaScript/TypeScript, Go) and build tools (Maven, Gradle).Experience implementing test automation strategies, TDD/BDD practices and load testing (JMeter).Practical ...

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 ...

flows between EBS and other applications.Technical Proficiencies: Proficiency in programming and scripting languages relevant to the enterprise stack. This may include Python/Django, Java or C# for application development. Solid skills in SQL and working with relational databases (particularly Oracle Database and PL/SQL) are required. Comfortable working ...

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 ...

ABOUT US:LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our ...

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 ...

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 ...

need to be the successful DV Cleared Software Engineer: Experience as a Software Engineer in one of: Backend development and it's ecosystem (Java Spring boot, Maven, Python) Frontend development and it's ecosystem (JS/TS, React, Npm) Familiarity with CICD, containerisation, deployment technologies & cloud platforms (Jenkins, Kubernetes, Docker ...

production. Strong platform and product support. The ability to make real changes with real business value. Technical Stack & Requirements Object‐oriented programming in Java (version 11+), ideally using the Spring Boot framework. Highly scalable, highly available cloud‐native applications on AWS, written to 12‐factor principles. Cloud‐related tools ...