76 to 100 of 109 Java Engineer Jobs in the UK

want to join a global high frequency trading firm and have real ownership? We’re looking for a sharp, product-minded engineer to help scale a fast-growing platform used across the company. You’ll work across frontend and backend systems, solve performance challenges, and play a key role … with users and seeing your impact quickly Refactoring and optimizing systems for speed and scale Must Haves: 5+ Years Software Engineering Trading experience Deep Java Script expertise Experience refactoring existing software Bonus points for experience with Docker, distributed systems, testing, Rust/WebAssembly, open-source projects, or an interest ...

global financial services firm is seeking a Lead Software Engineer in Glasgow to work within Prime Finance Services. This role involves building and delivering innovative technology solutions, impacting operational stability. Key responsibilities include software design, and development, with a focus on utilizing advanced technologies like Java, KDB+/ ...

most ambitious engineering and digital transformation programmes? About The Role: We’re expanding our Technology & Transformation practice and are looking for an experienced Java Developer to help design and deliver innovative, secure, cloud‐native solutions for our clients across multiple industries. 🔧 What you’ll be doing Designing, developing … maintaining high‐quality Java applications Building and securing RESTful APIs using Spring Boot/Spring MVC Collaborating in cross‐functional agile teams to deliver client solutions end‐to‐end Contributing to architecture and system design , including non‐functional requirements Supporting live services, troubleshooting production issues, and improving observability Mentoring ...

WorksHub is seeking a full-time Software Engineer (Vice President) in Birmingham. This role focuses on managing multiple stakeholders while utilizing a diverse tech stack including Scala, Java, Python, and Spark. Candidates should be comfortable with TDD and build tools such as Maven. Enjoy a competitive compensation package ...

VanRath is seeking an experienced Java Contractor to join their team in Belfast (Hybrid - 2 days per week onsite). The role involves developing and maintaining high-performance Java applications in a leading global FinTech organisation. Candidates should have strong experience in Java and Google Cloud Platform ...

leading financial institution is seeking a Lead Software Engineer in Glasgow. This role involves enhancing and delivering reliable technology products, emphasizing security, stability, and scalability. The ideal candidate will have advanced experience in Java or React, a strong understanding of software development life cycles, and practical cloud experience. ...

What You Bring to the Team Strong experience in Java, with flexibility to work across additional technologies as needed. Experience with CI/CD tooling and deployment workflows. Experience or strong interest in distributed or stateful systems in cloud native environments. Experience with AWS or similar cloud platforms. Experience ...

Bullish, Inc. is seeking a Java developer to design and deliver low-latency systems that power their Exchange. The ideal candidate has strong Java skills and a track record in performance tuning and building high-throughput systems. Join a global team committed to technical excellence, and collaborate across ...

What You Bring to the Team Strong experience in Java, with flexibility to work across additional technologies as needed. Experience with CI/CD tooling and deployment workflows. Experience or strong interest in distributed or stateful systems in cloud native environments. Experience with AWS or similar cloud platforms. xkybehq ...

Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for experienced Java Developers to join an established engineering team. … large-scale NHS environment, working alongside architects, testers, and product teams to deliver quality software at pace. KEY RESPONSIBILITIES Design, develop, and maintain robust Java-based applications across the programme Build and deploy cloud-native solutions using AWS services, following well-architected principles Write clean, well-tested, and maintainable ...

looking to recruit an experience Java Software Engineer who has experience of developing IT Security Applications. Experience of developing AI integrated applications would be a real advantage. In this role you will working in Java on the development of new IT Security Applications to protect Microsoft Architectures ...

NOTE: VISA SPONSORSHIP IS NOT PROVIDED Role : Java/AWS Full Stack Developer Location: Leeds, UK (3 days/Week Onsite) Type: Permanent Relevant Experience: 5 to 10 Years Job Summary: Designs, runs and improves software that meets user needs click apply for full job details ...

supporting one of our client on a major Payments modernisation programme and we are looking to hire Lead Java Engineers to help design and build a new real-time event-driven platform. Note this role is a 12 months fixed term contract. Role Overview You will be part … engineers who enjoy complex, low-latency, real-time systems and modern cloud platforms. Key Responsibilities Design and build real-time, event-driven microservices in Java Create and manage Kafka topics (Azure Event Hub) for live trade data Contribute to the modernisation of legacy systems into Azure Work closely with ...

13+ billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Must Have – Java, Low-latency, financial services background, and hands on coding skills "Our app relies heavily on async development, we use vertex. it takes significant time … have significant intuition with that, and some modern messaging like Aeron or ZeroMQ." DETAILED RESPONSIBILITIES- - Lead the development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers ...

Bank of America is looking for a Senior Engineer in Bromley to join the FICC Macro Rates Electronic Trading Technology team. This role focuses on developing and enhancing critical eTrading components utilized globally. Candidates should have hands-on Java experience, a strong background in multi-threaded development ...

Staff Software Engineer/Developer (Kotlin Java JVM) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University ...

Banking is looking for a passionate Software Engineer to work on cutting-edge technologies and deliver scalable solutions. This role involves building components for interest calculations and mentoring junior developers. Ideal candidates have solid Java skills, experience with cloud-based microservices, and strong communication skills. The position offers ...

Lead Test Engineer - Inside IR35 - £600 to £640 per day via umbrella - 12-month contract - SC Clearance is essential (Experience in driving or supporting transformation from monolithic systems to distributed micro-services architectures in Java - is essential) Start date - 25/05/2026 is essential Leeds … home based Essential Skills & Experience: Technical Expertise: * Strong experience designing and implementing test strategies for microservices environments * Hands-on automation experience using: o Java, Selenium, Rest Assured o API, contract, and integration testing * ( Experience working with monolith and microservices systems is essential) Knowledge of: o CI/CD pipelines ...

Greater London is looking for a highly experienced Java Backend Engineer to lead the development of high-performance risk systems. The role involves designing scalable JVM services, collaborating with quantitative teams, and optimizing the existing codebase. The ideal candidate should have 10+ years of experience, mastery in Java ...

Java Software Engineer - Multiple Roles (Junior to Senior) Want to work with one of Northern Ireland's fastest-growing tech companies? Looking for a team where your input genuinely shapes the architecture and direction of projects? How about working on greenfield builds using the latest Java and cloud technologies every day? The Role You'll be developing high-quality, scalable Java solutions as part of a small, talented engineering team. From day one, you'll be hands-on - writing clean, testable code, designing APIs, and contributing to technical decisions that make a real impact. ...

code Making smart trade-offs between speed, quality and risk to deliver customer value quickly Your Toolkit Strong backend engineering experience using Kotlin or Java in a production environment Passionate about building reliable, high-quality products — not just writing code Comfortable working on distributed systems with scale and complexity ...

global financial institution is seeking a Cross Border Payments Developer (AVP) to join their FX Technology team in the UK. The role focuses on Java development within an AI-first environment, enhancing cross-border payment solutions. Qualified candidates will possess experience with sales or trading teams, systems knowledge ...

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 ...

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 ...

working with cutting-edge technologies and will have the opportunity to develop a wide range of new skills on the job. As a Java Developer, you will: Develop traditional and serverless applications and services in an agile and collaborative environment using source control that integrate with data storage services … with a consideration of security/performance requirements We are looking for experience in the following skills: At least 4 years of experience in Java development. Experience with Cloud Native technologies on AWS, Azure or GCP is essential. Hands-on experience in scripting languages such as Python, Shell ...