1 to 25 of 141 Java Engineer Jobs in the UK

Senior Java Engineer (JVM) Department: Software Engineering Employment Type: Permanent - Full Time Location: Remote, UK Description WHAT WE NEED We are looking for a Senior Java Engineer, experienced in JVM, concurrency, networking, strong consistency, and data storage to join our Core team. The team focuses on the Hazelcast Platform, our high-performance, low-latency storage and … solid engineering fundamentals with a focus on performance, consistency, resilience, and scale, bringing your passion for solving difficult problems to help realize the product vision. Your role as a Java Engineer is crucial in ensuring that Hazelcast Platform meets business objectives, is robust and scalable, and is depended upon by customers for mission-critical implementations. WHAT YOU'LL … DO Design and Development : Design, develop, and maintain Java-based consistency and storage components, leveraging RAFT and other distributed algorithms. Implement new solutions using Java frameworks and libraries, ensuring scalability, performance, and reliability. Optimize the platform for speed, efficiency, and resource utilization, including indexing, query optimization, and caching strategies. Security and Integration : Implement security measures to protect data More ❯

Java Engineer - FX Technology page is loaded Java Engineer - FX Technology Apply locations London 10 Upper Bank Street time type Full time posted on Posted Yesterday job requisition id R Job Description: Job Title Java Engineer - FX Technology Location London Corporate Title Associate Our Foreign Exchange (FX) Technology team are working with cutting-edge … goals, design, feedback on enhancements and usability Clear and concise documentation covering the solution design, architecture choices and any complicated code points Your skills and experience Familiarity with core Java platform Practical knowledge of JavaScript/TypeScript and HTML5 is highly desirable Excellent grasp of common computer science topics including but not limited to data structures, algorithms and practical More ❯

Java Software Engineer - Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Payments A Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought after by a global Fintech based in South West London. This organisation specialises in providing … high performance technology solutions to global financial institutions (including several Investment Banks), primarily to augment their payments capabilities. As a Senior Engineer, you will join the core engineering team working on the development of their real-time payments processing platform, using a primary tech stack of Java 17, Spring Boot and Akka. You will contribute from both a … with a heavy focus on Pair Programming and TDD, so are looking for people from similar environments. To be successful, you will demonstrate: A strong background in hands-on Java engineering, currently working with Java 11+ Indepth knowledge of microservices architecture and usage of Spring/Spring Boot Experience developing distributed, real-time applications with Kafka and the More ❯

Java Software Engineer - Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, MongoDB, Docker/Kubernetes, Real-time, TDD/BDD, Payments A Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought after by a global Fintech based in South West London. This organisation specialises in … providing high performance technology solutions to global financial institutions (including several Investment Banks), primarily to augment their payments capabilities. As a Senior Engineer, you will join the core engineering team working on the development of their real-time payments processing platform, using a primary tech stack of Java 17, Spring Boot and Akka. You will contribute from both … with a heavy focus on Pair Programming and TDD, so are looking for people from similar environments. To be successful, you will demonstrate: A strong background in hands-on Java engineering, currently working with Java 11+ Indepth knowledge of microservices architecture and usage of Spring/Spring Boot Experience developing distributed, real-time applications with Kafka and the More ❯

Fullstack Software Engineer (Java & React) Permanent Hybrid circa 2 days a week in the Glasgow City Office We have an exciting opportunity for a talented Fullstack Developer to join a fast-growing technology company based in Glasgow. This hybrid role offers the chance to work on a cutting-edge SaaS platform that supports corporate sustainability, carbon accounting, green … energy and risk management for major enterprise clients. As a skilled full-stack Java & React Engineer, you will play a key role in developing scalable backend services and dynamic frontend applications that help enhance and innovate the services. As a successful developer your responsibilities will include: Designing and maintaining backend services using Java, Spring, and Hibernate Defining … and subject matter experts Participating in agile ceremonies such as sprint planning and retrospectives To be successful you will need to demonstrate experience of: 2+ years of experience in Java and React development Strong understanding of object-oriented programming, design patterns , and web development best practices Experience working in agile teams and fast-paced environments Excellent problem-solving and More ❯

Java Engineer Application Deadline: 31 July 2025 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £40,000 - £85,000/year Description Please note: For this role it is essential that you hold an active, or recently active SC clearance, and are willing and eligible to obtain a DV clearance. This role requires 3 days per … sector, we focus our efforts on improving the working lives of organisations doing social good across the UK. Who are we hiring? We are currently looking for an experienced Java Engineer with an active, or recently active SC security clearance to join one of our delivery teams working with customers based in central London. Your role at Gemba … systems, using a variety of modern technologies and best practices to help produce reliable, secure, and scalable solutions. Your skills and experience Applicants should have experience of the following: Java with Springboot Kubernetes Any experience of the following is desirable: Elastic/Opensearch Helm React AWS Go Why join Gemba? Gemba is built upon four core values that we More ❯

Technologies: Java UML UX UI Requirements Analysis Agile Waterfall NetBeans Eclipse Java Swing Java FX VMware Redhat Linux ansible Software Test Planning Configuration & Build svn Jenkins Hudson Sonar Signal Processing C++ RTI DDS Java Software Engineer wanted! Our client based in Weymouth is seeking a talented Java Software Engineer. A background in UX/… and talented person with a keen interest in software technology and the User journey through UX/UI is the ideal candidate. Extremely competitive salary on offer. Responsibilities: The Java Software Engineer should have UML experience using Enterprise Architect. Our client operates in areas where they support systems and equipment, both in the UK and International. This job … will be in the area of underwater warfare. Java UML UX/UI Requirement Analysis Knowledge of Agile, Waterfall and V VMware, RedHat, Linux, Ansible Software Test Planning Configuration and Build SVN, Jenkins, Hudson Sonar or Signal Processing C++ RTI DDS Candidate Profile: Degree in Computer Science or related subject Previous experience working as a Java Software Engineer More ❯

Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript Finance Trading Front Office Investment Banking Asset Manager Financial Services FX Fixed Income Equities Commodities Derivatives Hedge … Fund) required by my asset management client in London. You MUST have the following: Advanced ability as a Senior Java Software Engineer/Technical Lead/Solutions Architect/Principal Engineer Good design and architecture ability Python Three or more of the following: Iceberg Dremio DBT Arrow Snowflake Glue Athena Airflow Agile The following is DESIRABLE, not … essential: Trading, Front Office finance Spark Buy-side asset management (hedge fund, asset manager, investment management) Role: Senior Java Software Engineer (Senior Architecture Programmer Developer Java Python Software Engineer Data Enterprise Engineering Developer Programmer AWS Python Athena Glue Airflow Ignite JavaScript Agile Pandas NumPy SciPy Spark Dremio Snowflake Apache Iceburg Iceberg Arrow DBT gRPC protobuf TypeScript More ❯

Contract Senior Software Engineer (Java/Angular) Contract/Software Engineer/Java/Angular/12 Months/Inside IR35/£550 per day/Financial Services We’re seeking an experienced Senior Software Engineer to lead the design and development of complex software systems and applications for a major client project. This role … across systems.Conduct code reviews, debugging, and performance tuning.Collaborate with stakeholders to align roadmap and technical strategy.Integrate with partner systems and manage infrastructure dependencies. Core Skills (Essential) 5+ years in Java & Angular development.Strong hands-on experience with REST APIs (Spring Boot).Deep understanding of data structures and problem-solving.Relational databases (MySQL/DB2).Automated testing (JUnit, Mockito).CI/CD … I will be in touch to discuss the client in more detail. Please email an updated copy of your CV to or click the apply button. Contract/Software Engineer/Java/Angular/12 Months/Inside IR35/£550 per day/Financial Services More ❯

Java Full Stack Software Engineer page is loaded Java Full Stack Software Engineer Apply locations United Kingdom (Remote or Hybrid) time type Full time posted on Posted 2 Days Ago job requisition id JR101227 It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing … Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT We are seeking a highly skilled and passionate Full Stack Software Engineer with a strong focus on Java to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining robust and scalable full … to deployment, collaborating closely with product managers, designers, and other engineers to deliver high-quality, impactful solutions. Design, develop, and implement highly performant and scalable full-stack applications using Java and related technologies. Build and maintain robust back-end services, APIs, and microservices. Develop responsive and intuitive front-end user interfaces. Collaborate with product management to understand requirements and More ❯

Java Full Stack Software Engineer page is loaded Java Full Stack Software Engineer Apply locations United Kingdom (Remote or Hybrid) time type Full time posted on Posted 3 Days Ago job requisition id JR101227 It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing … Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT We are seeking a highly skilled and passionate Full Stack Software Engineer with a strong focus on Java to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining robust and scalable full … to deployment, collaborating closely with product managers, designers, and other engineers to deliver high-quality, impactful solutions. Design, develop, and implement highly performant and scalable full-stack applications using Java and related technologies. Build and maintain robust back-end services, APIs, and microservices. Develop responsive and intuitive front-end user interfaces. Collaborate with product management to understand requirements and More ❯

Staff Software Engineer - Java, Python, Generative AI, Agentic Systems (REMOTE) page is loaded Staff Software Engineer - Java, Python, Generative AI, Agentic Systems (REMOTE) Apply remote type Remote locations CA Palo Alto - JPS NC Raleigh-Durham OR Portland - JPS CA San Diego (Office) - JPS NV Las Vegas time type Full time posted on Posted 2 Days Ago … job requisition id R GEICO is seeking an experienced Engineer with a passion for building high-performance, low maintenance, zero-downtime platforms, and applications to support the Digital Experience for customers. You will help drive our insurance business transformation as we transition from a traditional IT model to a tech organization with engineering excellence as its mission, while co … creating the culture of psychological safety and continuous improvement. Position Description Our Staff Engineer is a key member of the engineering staff working across the organization to provide a friction-less experience to our customers and maintain the highest standards of protection and availability. Our team thrives and succeeds in delivering high-quality technology products and services in a More ❯

Software Engineer (Java) - Active Savings (12 Month Fixed Term Contract) page is loaded Software Engineer (Java) - Active Savings (12 Month Fixed Term Contract) Apply locations Bristol (Harbourside) time type Full time posted on Posted Yesterday time left to apply End Date: September 7, 2025 (18 days left to apply) job requisition id R7723 Excited to grow … range of banks and building societies. In Active Savings we build and maintain web services for our clients, partner banks and internal operations teams. These services are written in Java, with a front end written using HTML communicating with an Oracle database. Within this role, you'll be working closely with a skilled and passionate cross-functional team to … produced to agreed team standards Demonstrate a willingness to learn further technologies & techniques Cultivate strong working relationships within the Digital department About You Ideally 3+ years' experience developing in Java 8+ Working knowledge of RDBMS and SQL Able to effectively use version control to manage code, in particular Git Understanding of professional development methodologies, tools (e.g source control, automation More ❯

This is an exciting opportunity for a passionate Java engineer to join one of many agile squads in the Insurance Retail family, we are looking for someone who likes a challenge, wants to embrace a DevOps culture and brings ideas around improved ways of working. We are also looking for someone who is a team player and can … of AI tools such as Amazon Q developer Experience of processing financial transactions and/or the insurance industry would be advantageous. Salary The salary for the role of Java Engineer with Cloud Experience (Level 3) pays within our pay banding of £27,500 to £46,000, providing a fantastic opportunity for career progression through CDL's clearly More ❯

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Create Alert An Amazing Career Opportunity for a Senior Software Engineer Java Location: Cardiff, UK Job ID: 39769 As a key contributor of the Customer Facing Tools team you will be responsible for the development and maintenance of our enterprise … and make a real impact on global security solutions. Are you ready to make a difference? Join us and help shape the future of security. As our Senior Software Engineer Java , you'll support HID's success by: You will be part of our Customer Facing Tools team under the PACS (Physical Access Control Systems) business area, the … is based in Cardiff. Our current hybrid working model allows 2 remote days per week. What we will love about your background: You have experience of developing applications using Java that includes: Unit testing, and Integration testing. Experience in developing networked applications would be desirable. Experience in writing integrations to devices over any of the following would also be More ❯

Java Software Engineer Lutom - Hybrid £50,000 - £100,000 Tilo Consulting are currently recruiting for a market-leading Software Solution provider in the UK. They are looking for a Java Engineer to join the rapidly growing team. The position is being offered as hybrid. This is a fully hands-on role, with the opportunity to work … with a cutting edge AI platform. Using Java you will be developing robust, secure, and scalable applications. In terms of match to the role, we are ideally looking for candidates with the following background: Well versed in delivering complex software solutions. Strong expertise in Java, OO design patterns, multi-threading and asynchronous paradigms. Experience with Spring, Git, Postgres More ❯

Lead Software Engineer - Java Location: Hybrid - Worcestershire (2 days per week on-site) An established and forward-thinking organisation is looking for an experienced Lead Java Software Engineer to join a collaborative and Agile development team. This is a hands-on development role, contributing to the delivery of enterprise-scale systems and the continuous improvement of … technical estate. You'll work across all phases of the software development lifecycle and play a key role in enhancing both customer experience and system capability. Tech Stack Core Java development Web services (REST and SOAP) SQL and database development Exposure to Microsoft technologies and modern CI/CD practices is a bonus Working with both legacy and modernised … codebases What You'll Be Doing Designing and developing robust Java-based applications and services Contributing to the design and evolution of scalable architecture Collaborating with cross-functional teams (QA, BAs, Architects, etc.) in a Scrum environment Improving the software development process and mentoring other engineers where needed Playing a key role in Agile ceremonies and delivering high-quality More ❯

is based in Central London, and this role offers a hybrid approach - 1 day a week in the office, potentially 4 days per month in bulk. Skills Required QA Java Engineer Java Developer React.js JavaScript CSS HTML Frontend Development Ruby Java Ruby on Rails Linux REST Job Description QA Engineer - Fintech, Selenium, Java Salary … Up to £65,000 Quant Capital is urgently looking for a QA Engineer to join our high-profile client. They have recently raised (PE and Bank) £50 million and are set for another £100 million raise in February. They are acquiring users More ❯

Software Engineer - Java Role Overview Are you an experienced Software Engineer with a strong background in Java? This is a hands-on development role within a cross-functional Agile team, focused on delivering innovative software solutions and improving existing systems in a dynamic environment. Location Worcestershire Key Responsibilities Design and develop robust software using Java … that enhances customer experience and strengthens the technical estate. Collaborate with internal teams and external partners to implement scalable solutions. What We're Looking For Essential Skills & Experience Commercial Java development experience. Understanding of production software applications and databases. Ability to write clean, maintainable code and apply design patterns. Strong analytical and problem-solving skills. Experience working within Agile More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity … secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and more Write clean, testable code … Kanban/Scrum) 🧠 What You Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity … secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and more Write clean, testable code … Kanban/Scrum) 🧠 What You Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity … secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and more Write clean, testable code … Kanban/Scrum) 🧠 What You Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity … secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and more Write clean, testable code … Kanban/Scrum) 🧠 What You Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request More ❯

Principal Software Engineer (Java) London – 1 day a week onsite 🚀 Join a FinTech Powering the Future of Payments Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity … secure transactions across the globe. 🔍 What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies. Design and build scalable, high-availability systems processing millions of real-time transactions Work with Java 17+, Spring WebFlux, AKKA, Kafka, and more Write clean, testable code … Kanban/Scrum) 🧠 What You Bring We’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems. Strong hands-on experience with Java 11+ (ideally Java 17) Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA) Experience with event-driven architecture, real-time messaging systems (Kafka, JMS) Familiarity with asynchronous request More ❯

Senior Java Engineer - Low-Level Systems | High-Performance Architecture | Hybrid London I'm working with a leading financial technology organisation building ultra-low latency systems at scale, and we're looking for a Senior Java Engineer with a strong grounding in low-level systems programming . This is an opportunity to join a high-calibre team … operate in the microsecond range and demand deep OS, networking, and concurrency knowledge . ?? What You'll Be Working On: Designing and developing low-latency, high-throughput microservices in Java Building and refining core components of a proprietary event-driven framework Working closely with architects, FPGA and infrastructure engineers to optimise performance across the stack Developing systems with a … focus on resilience, fault-tolerance, and scalability Driving performance improvements with hardware-aware optimisations and kernel-bypass techniques ?? What We're Looking For: Deep understanding of systems-level programming (Java and/or Rust, C, C++) Experience with manual memory management , concurrency , and multithreading Familiarity with Linux internals , system calls, and networking Bonus points for experience with: Kernel bypass More ❯