23 of 23 Java Software Engineer Jobs in the UK

Senior Java Software Engineer - Java Developer, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Hybrid - 3 days a week in the office - Notting Hill) Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research … machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out as impossible. The Java Software engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some ...

Principal Software Engineer/Developer (Java SpringBoot AWS) London/WFH to £120k Are you an experienced Java focussed Software Engineer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. As a Principal Software Engineer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments. ...

Build and improve real-world Java desktop software in a small, influential engineering team where your technical decisions, ideas, and leadership will genuinely matter. Hands-on Java desktop software role focused on Swing-based commercial applications - not web development. About Us Semantics 21 is a multi … award-winning UK software company developing specialist desktop software used internationally within public safety and investigative environments. Our technology helps organisations process and review digital evidence more effectively, supporting work that can have genuine real-world impact in areas including child protection and public safety. We are growing ...

Lead Software Engineer (Java/Typescript) We are looking for a highly skilled Lead Software Engineer to take ownership of one of our clients core platform systems. In this pivotal role, you will guide a talented engineering team, ensuring the stability, performance, and ongoing evolution … will help shape the technical roadmap and ensure our systems remain scalable, reliable, and innovative. Key Responsibilities Technical Leadership: Provide technical direction across the software development lifecycle, ensuring alignment with internal standards and best practices. Hands-On Coding: Contribute directly to the codebase and support sprint goals with high ...

Senior Software Engineer - Java/Spring/Full stack (Fully Remote) Location: Fully Remote Salary: £50,000 to £60,000 plus strong wider benefits package About the role Our client, a digital consultancy delivering into central government, are looking for a Software Engineer to join … improving how services operate at scale, working closely with client stakeholders and other teams. This is a hands-on full stack role using Java, JavaScript, Spring and AWS in a fast-moving, stakeholder-heavy environment. Key responsibilities Design, build and improve digital services within the DRS workstream Deliver full ...

Role Senior Software Engineer Java .NET FTC Manager Lead Development Manager Location Hybrid Role Overview We are looking for 3 experienced Senior Developers, to support the ongoing evolution of the TMS platform, contributing to the development of modern, scalable solutions within a complex transport and logistics environment. … role will involve designing, developing, and enhancing business-critical applications across a modern technology stack including Java 1721, Spring Boot 3.x, Angular 16/17, and Flutter/Dart. Working as part of a collaborative engineering team, you will help deliver high-quality software solutions that support operational ...

Senior Software Engineer (Java/Kotlin) Manchester (Hybrid - 2 days onsite per week) Contract until end of 2026 £731.25/day Umbrella A global travel technology organisation is building a brand-new connectivity platform and requires a Senior Software Engineer to help shape the architecture … services and integrations connecting external providers into a high-volume marketplace platform. What you'll be doing Designing and building scalable backend services using Java and/or Kotlin Leading system design discussions and driving technical decisions Building integrations with third-party APIs and external platforms Developing resilient distributed ...

client is a growing, mission-led consultancy delivering secure and modern software solutions across the UK Government and Defence sectors. They are now looking for an experienced Principal Full Stack Software Engineer to join their collaborative and forward-thinking engineering team. This is an exciting opportunity … senior engineer who enjoys staying hands-on across both back-end and front-end development while also helping shape technical direction, mentoring teams, and driving engineering best practice. You will work on secure, scalable cloud-native platforms, modern web applications, APIs, and digital services that support meaningful and high ...

Software Engineer - Java/Back End Hybrid - 2 days per week in the office Java, PostgreSQL, API We are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model … highly involved with knowledge transfer, including code walkthroughs, pairing sessions, and documentation reviews with the outgoing external team. Gain understanding of the current Java application architecture - service boundaries, dependency injection patterns, build system, and deployment configuration. Design and implement new back-end features, enhancements, and bug fixes in Java ...

Software Engineer - Java/Back End Hybrid - 2 days per week in the office Java, PostgreSQL, API We are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model … highly involved with knowledge transfer, including code walkthroughs, pairing sessions, and documentation reviews with the outgoing external team. Gain understanding of the current Java application architecture - service boundaries, dependency injection patterns, build system, and deployment configuration. Design and implement new back-end features, enhancements, and bug fixes in Java ...

Staff Software Engineer | Enterprise Technology Hub Location: Glasgow (Hybrid - City Centre) Role Type: Contract-to-Permanent Sector: Global Tier 1 Institutional Technology The Opportunity We are seeking a high-caliber Staff Software Engineer to spearhead critical modernization initiatives within a global technology hub. This role … hosting platforms from legacy systems to Kubernetes-based environments on GCP or AWS. Full-Stack Delivery: Architect and maintain robust, scalable applications using Java 17+ and Angular . Data Modernization: Oversee complex data migrations, including Elasticsearch upgrades (v2 to v8) and transitioning operational databases from Oracle to PostgreSQL. Stakeholder ...

Java Software Engineer - Microservices | Payments | Enterprise-Scale Systems We’re looking for an experienced Senior Java Developer to join a high-performing engineering team delivering large-scale, business-critical platforms in a complex enterprise environment. This role is suited to someone who enjoys solving real business … problems through strong engineering practices, modern architecture, and clean, scalable code. You’ll work across the full software development lifecycle, partnering closely with product, architecture, QA, and production teams to deliver resilient, high-quality solutions. Key Responsibilities • Design, develop, and optimise secure, scalable Java-based applications • Build ...

Lead Full-Stack Software Engineer Tier 1 Consultancy Location: Glasgow City Centre (Hybrid) Engagement: Contract-to-Permanent Rate: Up to £600/day (Inside IR35 via PAYE) Overview A leading Tier 1 financial institution is expanding its Glasgow technology hub and seeks an experienced Lead Full-Stack Software Engineer to play a pivotal role in the transformation of its digital business banking platforms. This position offers a rare opportunity to enter on a contract while transitioning into a permanent senior leadership role within a globally recognised organisation. The successful candidate will combine technical authority, architectural vision ...

Senior Software Engineer - (Java, Pricing API,) - 5 days - Retail - London Day rate: £400 - £500 (inside IR35) Duration: 6 months On site: 5 days per week Start: Now My client is looking for a Senior Java Developer with 8 - 15 years experience to join the team … building resilient systems at scale, this could be a great fit. What You'll Be Doing Designing and building scalable backend systems using Java and the JVM ecosystem Developing clean, maintainable code from product requirements Applying TDD/BDD practices and modern engineering principles Building and maintaining cloud-native ...

Java Developer - multiple roles £550-570/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers to support projects across UK Government and Law Enforcement. … work in multidisciplinary teams delivering secure, reliable and scalable systems. The role is hands-on and focused on building high quality software using modern engineering practices. What you'll do You'll design, build and maintain Java based microservices, applying test driven development and following established engineering standards. ...

Java Software Developer £600/day Inside IR-35 for an initial 6 months with extension likely London - 3 days per week on site Active SC Clearance essential We're looking for a Java developer to join an established engineering team working on backend services hosted … Azure. The role focuses on building and supporting Java applications and APIs, using VS Code as a primary development environment. You'll work closely with other engineers across backend, frontend, and DevOps, contributing to cloud-based systems. About the role Java backend development role Focus on services ...

Java Developer – · Over 9-12+ years of experience in Java development, with a focus on microservices architecture. Responsibilities - · Lead the design, development, and deployment of microservices using Java and Spring Boot. · Develop and maintain scalable, high-performance microservices. · Integrate microservices with various databases, APIs, and third … through unit testing, code reviews, and continuous integration. · Identify and resolve performance issues, bugs, and other technical challenges. · Create and maintain technical documentation for Java microservices architecture and design. Skill set · Java Proficiency: Proficiency and command of Java, including object-oriented programming, design patterns, and core APIs ...

Build and improve real-world Java desktop software in a small, influential engineering team where your technical decisions, ideas, and leadership will genuinely matter. Hands-on Java desktop software role focused on Swing-based commercial applications - not web development. About Us Semantics 21 is a multi … award-winning UK software company developing specialist desktop software used internationally w click apply for full job details ...

Start date: ASAP (Urgent!!) Location: London, UK On site Requirement: 3 times per week Contract Inside IR35 Software Development Engineer About the role Ours is a globally distributed, full stack java tech team and our building blocks consist of a set of Microservice components, backend APIs, Rich … robust Eventing Platform and Data layer components utilising a wide range of modern technologies including: Java, RxJava, SpringBoot Kafka, PostgreSQL and Couchbase Docker, Kubernetes, Jenkins, Azure DevOps, Splunk, AppDynamics, New Relic Azure Cloud We are responsible for the software throughout the lifecycle. We maintain a DevOps culture employing ...

Senior Java Developer - Front Office. £85,000 - £95,000 + oustanding benefits. Location: Glasgow (Hybrid) 2 days per week in the office I'm working with a leading Banking client to find a Principal Java Developer. This is a chance to work on a brand-new, state … influencing the design and architecture of a major new platform. This position is ideal for someone who is passionate about delivering high-quality software development standards. Key Responsibilities: Lead the full development lifecycle from design to deployment. Proactively influence design and promote good software development standards. Partner with ...

prominent IT consultancy is actively searching for a talented Full Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an exciting opportunity … eligible to go through SC Clearance No Sponsorship will be provided for this role Job Details Required Extensive experience of building microservices with Java (Spring Boot) Experience using JavaScript/Typescript to build fronted web applications using React, HTML and CSS Experience using version control software - Git Experience ...

About Us Semantics 21 is a multi-award-winning UK software company developing specialist desktop software used internationally within public safety and investigative environments. Our technology helps organisations process and review digital evidence more effectively, supporting work that can have genuine real-world impact in areas including child ...

high-quality solutions. Integrate workflow automation tools (Camunda 7 or equivalent). Ensure code quality, security, and performance standard. Required Skills Strong proficiency in Java (Core + Advanced). Hands-on experience with React.js for front-end development. Expertise in Spring Boot and Microservices architecture . Experience with workflow ...