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Java Developer, London (on site full-time) Salary £60K+ Our client is a global leader in the creation of software tools for security testing of web applications. We're looking for developers with a passion for building excellent software and working within a collaborative environment. While Java expertise is essential, your ability to thrive in a team, share knowledge, and engage in open problem-solving discussions is key. If you're a developer who loves solving hard problems, have experience at top-tier tech companies and are ready for a new challenge, this is for you. You'll have the... more ->
Java Developer Hybrid - 2 Days/Week in London (Victoria) | £50,000-£60,000 + Benefits | Permanent We are seeking a talented Java Developer with strong Spring Framework experience to join a high-performing team delivering large-scale, enterprise-grade applications. Key Focus Areas: Design, develop, and maintain Java-based solutions using the Spring Framework Collaborate with cross-functional teams to deliver high-quality software Contribute to solution design, performance tuning, and code reviews Requirements: Proven experience as a Java Developer (Spring Boot/Spring Framework) Degree in IT or... more ->
Java Developer (SC Cleared) - Remote - £455 per day - Start ASAP A large managed service provider require a Java Developer with the ability to work with data throughout its life cycle, from collection and storage to processing and analysis. This role is predominately remote with the flexibility to attend key meetings onsite. Required: Good knowledge and experience using programming languages such as Python, Java or SQL and tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful: R, Apache Spark Very Useful: Python, SQL, JSON, LakeFS more ->
Java Developer (SC Cleared) 6-month contract Remote-first (1 day per week on-site in London) Overview A Java Developer is required to support a data-focused engineering environment, working across the full data life cycle-from ingestion and storage to processing, integration, and analysis. The role sits within a secure government-related programme, so active SC Clearance is required You'll design, build, and maintain data processing systems and pipelines, integrating diverse data sources and ensuring they can be combined, transformed, and analysed effectively. The position is hands-on, with a... more ->
Java Developer Location - Remote with some ad hoc travel to London 6 months £468 per day inside IR35 Active SC clearance required Skills: The ability to work with data throughout its life cycle, from collection and storage to processing and analysis. Data developers are responsible for designing, implementing and maintaining the systems and infrastructure needed to handle large volumes of data. They work on integrating data from a variety of sources, ensuring that different data sets can be effectively combined and analysed. They can also utilise programming languages such as Python, Java or... more ->
Java Full-Stack Developer (SC Cleared) Hybrid - London £550 per day (inclusive) Contract - Immediate Start We are seeking an SC Cleared Java Full-Stack Developer to join a high-performing delivery team working on complex, mission-critical government programmes. This is a hands-on role within an enterprise-scale Agile environment, contributing to the design, build and delivery of secure, high-quality full-stack solutions. What you'll be doing: Developing and delivering full-stack solutions with Java at the core Working across Front End and Back End components within Agile teams Contributing to... more ->
Role: Java Developer Location: Burgess Hill, UK Type: Contract Skills: Java 8 Strong experience on Kotlin or Golang JBG81_UKTJ . click apply for full job details more ->
Senior Java Developer Hybrid - 2 days onsite Our client, a leading enterprise organisation undergoing significant digital transformation, is seeking an experienced Senior Java Developer to join their high-performing engineering team. This is an excellent opportunity for a seasoned professional who thrives in complex environments and enjoys working with modern Java technologies at scale. What you'll bring: Proven experience in software design and development with Java-based technologies Experience in a senior developer or technical leadership role Strong, hands-on expertise with Java , Spring... more ->
The ability to work with data throughout its life cycle, from collection and storage to processing and analysis. Data developers are responsible for designing, implementing and maintaining the systems and infrastructure needed to handle large volumes of data. They work on integrating data from a variety of sources, ensuring that different data sets can be effectively combined and analysed. They can also utilise programming languages such as Python, Java or SQL and tools such as Apache Spark or in this instance LakeFS, for data processing and management. Useful - R, Apache Spark. Very useful -... more ->
Permanent role 5 days onsite required. Job Summary We are seeking a skilled Java API Developer with strong experience in JVM-based Back End systems and secure authentication mechanisms using OAuth 2.0 and JWT. The ideal candidate will design, develop, and maintain high-performance RESTful APIs and ensure secure, scalable, and reliable application architecture. Key Responsibilities Design, develop, and maintain RESTful APIs using Java and JVM-based frameworks. Build microservices using Spring Boot or similar JVM frameworks. Implement authentication and authorization using OAuth 2.0 and JSON... more ->
Software Developer Surrey - Hybrid (3 Days in Office, Every Two Weeks) £50,000 to £65,000. A great opportunity to join a growing consultancy where you will build full stack software used across aviation, defence and public sector environments. You will work on varied, meaningful projects while enjoying autonomy, flexibility and strong technical standards. The Company They are a specialist consulting organisation delivering end-to-end software products that solve complex problems for their customers. They focus on innovation, quality and collaborative engineering, offering a supportive... more ->
SC Cleared Java Developer - Public Sector We are working with a major public sector organisation delivering critical national digital services, and we are looking for an SC Cleared Java Developer to join a high-performing agile team. This is an opportunity to contribute to large-scale, user-focused systems that impact millions of citizens across the UK. The Role You will play a key part in designing, building and enhancing secure, scalable Back End services within a complex enterprise environment. Working in a collaborative, multi-disciplinary team, you'll help deliver modern, cloud-based... more ->
Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines. The team provides innovative solutions for low touch, low latency trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support... more ->
Your responsibilities: Design and develop web applications using Java (latest versions), Spring Boot, and AWS technologies. Architect and implement RESTful APIs for distributed enterprise-grade systems. Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns click apply for full job details more ->
Java Developer - multiple roles £510/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. You'll 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... more ->
Hiring: Java Software Engineer UK-Based | Remote | 12-month contract | 450 per day I'm currently supporting the search for a highly capable Java Software Engineer looking to transition into Architecture to join a major transformation programme, leading the migration from on-prem services into Azure. This isn't a junior role in experience - we're looking for someone with high-level architectural capability , strong communication skills, and the confidence to guide and oversee the work of experienced engineers. What You'll Be Doing ?? Supporting the Senior Architect across a large-scale cloud... more ->
Job Title: Java and Azure Architect Location: London or Cardiff - once a month in the office Salary/Rate: £505 per day inside IR35 Start Date: March Job Type: Contract - 12 months Company Introduction We have an exciting opportunity now available with one of our sector-leading Data Analytics clients! They are seeking a hands-on Technical Architect to design and deliver cloud-native solutions on Microsoft Azure with a strong Java focus. You'll partner with senior architects and engineering teams to build secure, scalable platforms-and help set the foundation for future AI-enabled capabilities.... more ->
iOS Developer Hybrid Working - London Mobile Banking Lorien's leading banking client is looking for an experienced iOS Developer with strong experience of working in Mobile Development in Swift UI, alongside testing teams. This role is based in London. This role will be Inside IR35 Via Umbrella Working in a Hybrid Model of 1-2 days a month on site. Key skills and Experience: Mobile app development - developing in Java/Kotlin programming language which is used to develop the applications for the iOS devices. Strong experience in Kotlin, Jetpack Compose and iOS development. A background of... more ->
*Python Developer* (Contract) Duration: 12 Months (Possibility for extension) Location: London/Hybrid (3 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile As a Python Developer, you will play a pivotal role in designing and developing complex Server Side components that support our core engineering streams. You will work closely with stakeholders to understand complex requirements, prioritize tasks, and maintain momentum in a fast-paced environment. Your expertise will help unblock current bandwidth constraints and ensure the... more ->