5 java developer jobs found in London

Java Developer Location: London (3 days per week onsite) Duration: 12-Month Contract Rate: Up to £300 per day Outside IR35 Start Date: Immediate Start/ASAP We're currently supporting a major global financial services organisation as they continue to grow their engineering teams and are looking to engage multiple Mid-Level Java Developers for long-term contract assignments based in London. This is an opportunity to work within a modern software engineering environment, contributing to the design, development and delivery of enterprise-scale applications used by millions of customers worldwide. Key Responsibilities Design, develop and maintain Java-based applications using Java 11+ Build and enhance scalable microservices and distributed systems Develop and consume RESTful APIs Write clean, maintainable and testable code following engineering best practices Contribute to automated testing and test-driven development initiatives Collaborate...

Senior Java Developer / AI Engineer - Design & Build Payment Product / Fintech / Banking. Spring Boot, Claude/Codex also essential. ANY PAYMENT PRODUCT CONSIDERD from Current Account OR SAVINGS OR ISA's OR Fixed Term Deposits, Lending etc. £600-£650/DAY OUTSIDE IR35 PAY. Our Fintech Challenger Bank client based in Central London seeks a dynamic, eager to learn and technically astute Java Software Engineer who has extensive experience in Designing & Building a Payment Product *NOT PAYMENT PLATFORM* so the ideal candidate will come from for e.g. a Challenger Bank or Fintech Payment Product Company. STRONG skills in Java, Spring Boot, AI (Claude or Codex), working in a Fintech Payment domain. YOU WILL NOT BE CONSIDERED IF YOU DO NOT HAVE FINTECH & DESIGN & BUILD PAYMENT PRODUCT EXPERIENCE WITH JAVA, SPRING & STRONG AI! Our client is hiring a hands-on SENIOR Software Engineer / Java Developer to support delivery and development of Savings products...

Java Developer - Java, React, Springboot £market rate (Outside IR35) Glasgow/5 days a week onsite 6 months initially My client is seeking experienced Java Developers to join a dynamic delivery team building modern, scalable applications. This role will suit candidates with strong full-stack capability, combining Back End Java development with modern Front End technologies such as React. You will work across microservices architecture, contributing to both design and delivery in an Agile environment. Key requirements: Strong Java (8+), Spring Boot & Spring MVC experience Experience building REST APIs & microservices Full-stack capability: React, JavaScript, HTML5, CSS/SCSS Knowledge of JEE (JSF, JPA, Servlets, JDBC) Experience with CI/CD (Jenkins, Maven) and Git Agile/Scrum environment experience Familiar with IntelliJ (or similar IDEs) Understanding of TDD & automated testing Strong collaboration across product, QA & engineering teams...

Java Developer - Java, Mulesoft, Springboot £market rate (Outside IR35) Glasgow/5 days a week onsite 6 months initially My client is looking for for Java Developers with strong Back End and integration experience to support the development of scalable, API-driven systems. This role will focus on Back End services, microservices architecture, and integration using MuleSoft, making it ideal for developers who enjoy working on complex system integrations and enterprise platforms. Key Requirements Strong Java (8+) with Spring Boot/Spring Experience with microservices & REST APIs Hands-on MuleSoft (Mule 4) - Anypoint Platform, API development, JSON/XML Understanding of integration patterns & architecture Experience with CI/CD and Git Knowledge of TDD & automated testing Agile/Scrum experience Strong collaboration skills Nice to Have Full-stack or Front End exposure (JSF) AWS/cloud experience Tools: Gradle, Ansible, GoCD Databases: Oracle, MongoDB...

Full Stack Developer - Outside IR35 - Contract - SC ESSENTIAL A rare opportunity to join our fast-growing technology company selling high-value software development services. You will be working within a Government department as part of an existing team to support the rollout of a new Database. Must have Kotlin (or, less preferably, Java) Spring GDS design system Nice to have AWS Terraform Thymeleaf Your approach You are passionate about delivering great technical quality, whether building greenfield solutions or improving the quality of legacy systems You hold your work to a high standard, with careful attention to visual quality, accessibility, and performance. You are excited by helping stakeholders achieve their goals through use of technology You enjoy collaborating with designers and product owners to innovate and devise great technical solutions to meet user needs You are comfortable with ambiguity and fast-paced, changing...