1 to 25 of 43 Contract Java Jobs in London

Java Developer Contractor £540 - £640 per day (Umbrella) | Inside IR35 London (Hybrid - 3 days per week in the office) 6-Month Contract Active SC Clearance Required Java Developer | Enterprise Applications | Agile Delivery We are currently seeking an experienced Java Developer Contractor to join a high-profile technology delivery programme. This … throughout the full software development lifecycle, helping to translate business requirements into robust technical solutions that support critical business outcomes. The Role As a Java Developer, you will be responsible for developing and maintaining backend services, APIs, and enterprise applications while contributing to modern software engineering practices, Agile delivery ...

Title: Senior Java Developer Location: Bromley ( 3 days in office is essential) Contract: 12 months with possible extension Rate: Highly competitive Status : Inside IR35 Working pattern: Full time We're looking for an experienced Senior Java Developer to join a global technology team delivering client-facing reporting solutions within … India. Current team members will provide support to enable you to familiarise yourself with the relevant functional aspects of the development role." Requirement: Java Developer with strong hands on expertise in building scalable Java applications, working in Agile teams. Develop, enhance and support a range of critical applications built ...

Full Stack Java Developer - Active SC, Active NPPV3, Java, React & TypeScript Up to £550 per day (Inside IR35) Remote 6 Months We are looking for an experienced Full Stack Java Developer to join a large-scale digital programme, delivering modern applications within a microservices environment. Active SC Clearance and NPPV3 … essential. Key Requirements: Strong experience developing full stack applications using Java (Spring Boot), React and TypeScript. Active SC Clearance and NPPV3. Proven experience working within microservices architectures, building scalable and maintainable solutions. Strong knowledge of PostgreSQL or other relational SQL databases. Hands-on experience with Docker and containerised application deployment. ...

Experienced Java Developer (Contract) Location - London, UK Work Mode - Hybrid (3 days work from office) Contract duration - 6 months Active SC Clearance required - YES Are you a hands-on Java expert looking for your next exciting contract opportunity? We are seeking an experienced Java Developer Contractor to help us design … code in a fast-paced environment, we want to hear from you! What You Will Do Develop & Innovate: Design, build, test, and maintain robust Java-based applications, backend services, and RESTful APIs. Collaborate: Work closely with Architects, Business Analysts, Product Owners, QA, and DevOps engineers throughout the software development lifecycle. ...

with Kafka and event streaming platforms. Deep understanding of microservices architecture and distributed systems. API-first architecture using REST and asynchronous messaging patterns. Strong Java and Spring Boot background. Experience designing cloud-native integration platforms on AWS. Strong understanding of messaging patterns, event sourcing and eventual consistency. Experience establishing architectural ...

Hands-on experience with automation tools such as: Selenium, Cypress, Playwright, Karate, Postman/Newman Strong programming and Scripting skills using languages such as: Java, JavaScript/TypeScript, Python, C# Experience testing web, API, and microservices-based applications. Familiarity with CI/CD tools such as GitHub Actions, Jenkins, Azure ...

platforms, including source-code control systems, build systems, artifact repositories, and deployment frameworks. Job Requirements: Proficiency in software application development using languages such as Java, Python, JavaScript, C++, or C#. Experience with database technologies (e.g., Elastic, MySQL, SQL Server). Understanding of CI/CD platforms (e.g., GitLab, Jenkins ...

Senior Java & Kotlin Backend Engineer Location: London (Hybrid - Wednesday office attendance required) Contract: Initial 2 months IR35: Outside IR35 Start Date: ASAP The Role We're working with a leading technology organisation seeking an experienced Senior Java & Kotlin Backend Engineer to join their engineering team on an initial two-month … develop and deliver high-quality backend solutions that are secure, reliable and built for scale. Key Responsibilities Design, develop and maintain backend services using Java and Kotlin. Build and enhance RESTful APIs within a microservices architecture. Develop secure, scalable and high-performance applications. Collaborate with Product Managers, Engineers and technical ...

Knowledge of Nginx, Apache Tomcat/HTTP and monitoring/auditing integrations. Strong troubleshooting, documentation and stakeholder communication skills. Nice to Have: Experience with Java 8, Python, PL/SQL, Ansible, Terraform, Jenkins, Git or AWS. Exposure to IBM Initiate MDM, MinIO or Cognitec FaceVACS. Experience with GIS technologies such ...

/LLM integration, with an understanding of model capabilities and limitations—not just using AI to generate code. Highly desirable: EdTech or Education experience Java Terraform Kubernetes LangChain, Bedrock, SageMaker or similar GenAI tooling OAuth/JWT This is an excellent opportunity to join a global organisation at the forefront ...

Financial Services or Capital Markets background. Experience creating and delivering comprehensive Test Strategies and Test Plans. Excellent SQL skills. Strong automation experience using: Selenium Java UFT Experience using: Azure DevOps ALM (Application Lifecycle Management) Experience with: CREST settlement systems CREST proprietary messaging SWIFT messaging ISO15022/ISO20022 messaging Windows UNIX ...

Senior Full Stack Developer (Java/C#) Location: Osterley, UK About the Role We are looking for a talented and passionate Software Engineer to join our engineering team based in Osterley . This is an exciting opportunity to work on modern, scalable applications using the latest technologies across backend, frontend … supporting high-performance applications while collaborating with cross-functional teams in an Agile environment. Key Responsibilities Design, develop, and maintain scalable backend services using Java and/or C# . Build modern, responsive user interfaces using ReactJS . Develop and support RESTful APIs and microservices . Design, optimize, and maintain ...

Hybrid) Day rate - up to £850pd inside IR3 A global investment bank is looking to grow their Risk function with multiple Senior Back End Java Developers. The successful Senior Back End Java developers will be responsible for delivering scalable, enterprise-grade applications within a complex technology environment. This … direction while working alongside talented engineers on business-critical systems. If you enjoy solving complex technical challenges, building resilient microservices and working with modern Java technologies, this may be for you. What you'll be doing Develop enterprise backend applications using Java and Spring Boot Design and build scalable microservices ...

initiatives and driving architectural decisions for robust, scalable, and high-performance server-side systems. This role provides hands-on leadership in building enterprise-grade Java backend solutions, guiding development teams, and influencing technical strategy and best practices. Responsibilities * Lead design, development, and implementation of complex backend applications and microservices using … Java and Spring Boot. * Own end-to-end delivery of backend components, from architectural design and coding to deployment and operational support. * Drive architectural decisions for backend systems, ensuring scalability, reliability, security, and alignment with enterprise standards. * Resolve high-impact technical challenges related to backend performance, data integrity, and distributed ...

solutions across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

solutions across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

Current SC Clearance Experience in software testing and test automation Strong understanding of Agile delivery practices Experience with performance testing and test strategy creation Java Experience Selenium and BrowserStack experience Knowledge of debugging, logging and monitoring tools such as Splunk, Azure Application Insights, Azure Event Hub, Adobe Insights or Qualtrics ...

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 ...

Java Full Stack Engineer Contract or Perm Birmingham/Leeds/Manchester/London Rates/Salary Open to negotiation depending on experience Current SC Clearance required Requirements Develop Support Java full-stack IAM applications APIs Microservices Secure DevOps-based releases Technical Skills required Java Spring Boot REST APIs ...

Senior Java Full Stack Developer Location: Canary Wharf, London Hybrid: 3 days per week in the office Salary: Competitive + Bonus + Benefits Build enterprise software while embracing AI powered development. We're looking for an experienced Java Software Engineer to join a highly collaborative engineering team responsible for delivering … help deliver high quality, scalable software solutions. The team is open to speaking with strong Full Stack Developers as well as experienced Back End Java Engineers who have a passion for building robust enterprise systems. What you'll be doing Develop enterprise applications using Java and Spring Boot Build ...

FullStack Developer (Java/React)Location: Canary WharfContract Length: 3 months rolling We are looking for an experienced Full Stack Engineer to join our engineering team and help deliver scalable, cloud-native applications supporting critical business services. You will be responsible for designing, developing and maintaining high-quality software across … Architects, QA Engineers and fellow developers to build secure, resilient and high-performing applications. Key Responsibilities Design, develop and maintain full-stack applications using Java and React/React Native. Build scalable RESTful APIs and microservices that support enterprise-grade applications. Develop responsive user interfaces using modern JavaScript frameworks ...

Senior/Lead Software Engineer (Java) | Outside IR35 | Hybrid (2 Days Onsite in central London) A large retailer urgently seeks an experienced Senior Software Engineer with extensive Java expertise to take a lead role in the design,development and support of scalable, cloud-native backend applications. Working within an Agile … working alongside engineers, operations and product teams to deliver software that supports critical business operations. Essential Experience Extensive commercial experience developing enterprise applications with Java and Spring Boot Proven track record designing and delivering high-throughput, distributed microservices at scale Strong experience building event-driven architectures using Kafka Expertise with ...

Anypoint Platform . Strong hands-on experience designing APIs, building Mule flows and managing Mule runtime environments. Experience integrating Salesforce with enterprise applications. Solid Java development skills. Strong understanding of REST and SOAP APIs, JSON, XML and data transformation. Experience implementing secure integration solutions using OAuth2, JWT, API gateways ...

work collaboratively across multidisciplinary teams. Technical Environment Experience with some or all of the following would be advantageous: Playwright Selenium Maestro BrowserStack TypeScript Java Node.js Express AWS Desirable Experience AI application testing. Validation of streamed AI responses. Performance and load testing. Creation of automation frameworks from scratch. Government or large ...

SDLC/Agile delivery, and production support with robust troubleshooting skills. Experience in Prime Brokerage/Margin/Risk systems with exposure to Core Java, DevOps/CI-CD, and AI-assisted development tools (eg, GitHub Copilot). Contract details: This role is paying £535 per day (Inside IR35 ...