1 to 25 of 74 Java Engineer Jobs in the UK

Software Engineer (Java/Kafka) - SC Cleared - Remote Rate : £550 per day Duration : 6 months extendable Location : Remote - Occasional travel to London IR35 : Inside The role: A leading Central Government Institution are seeking an experienced Software Engineer (Java/Kafka), to join a high-profile project. … This is an initial 6-month contract, Inside IR35 and requiring active SC Clearance. Skills/Experience Requirements : Java, Java Spring, Kafka, Kubernetes, Docker Desirable : MQ Series Postgres, Redis or time-series Databases Experience working with AWS and Hybrid Cloud Experience working with Confluent and/ ...

Principle Java Engineer Salary to £ 7 0k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV ) clearance i.e. you have at least 5 years residency … growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for a n experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public ...

Senior Java Software Engineer – Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Reactive Programming, MongoDB Payments A Senior Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought … 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 ...

Lead Software Engineer - Java Have you got experience in setting technical vision, influencing system design, and guiding teams in delivering secure, scalable, and high-performing services? In this role, you will focus on technical leadership with mentoring others, driving engineering excellence, and ensuring the backend strategy aligns with … backend discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice ...

Senior Java Software Engineer - Java 11+, Spring, Spring Boot, Microservices, Kafka, Akka, Docker/Kubernetes, Real-time, TDD/BDD, Reactive Programming, MongoDB Payments A Senior Java Engineer with a background in finance/payments and experience working on distributed real-time systems is sought ...

Senior Java Engineer (Core Java) £115,000 - £145,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some … throughput distributed systems, solving complex engineering problems at scale within a collaborative, high-performing team. Key Responsibilities Design, build and maintain high-performance distributed Java services Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within ...

Senior Java Engineer - Permanent Salary: 55k-65k Working Arrangement: Fully Remote Tech Stack: Java, Spring Boot and Cloud Platforms(AWS, Azure and GCP) Desirable - Python and JavaScript I am currently working with a leading software software consultancy working with the government for a Senior Java Engineer ...

Java Engineer Salary to £ 45 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency … data and deliver citizen services. Theyre growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for aJava Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients ...

Java Software Engineer Bristol (Hybrid – 3 days per week) Up to £60,000 Climate Tech Want to grow your backend skills while working on meaningful climate technology? The software you build will support organisations working to better monitor infrastructure, improve operational safety, and accelerate the transition … modern software engineering with environmental innovation, the company is helping drive more efficient and sustainable infrastructure management. The Role We’re looking for a Java Software Engineer to join a collaborative backend team and help develop the cloud-based platforms behind these systems. You’ll work alongside experienced ...

Senior Java Engineer Java, AWS, SQL Manchester (Hybrid - 3 days in office) £95,000 - £145,000 + 5-20% annual bonus + equity options Must be eligible for NPPV3 clearance (UK residency typically 5+ years) - please apply only if you meet this criterion About the Role … integrating with external providers, all within a modern, agile environment that values autonomy and innovation. What You'll Do Own Back End development across Java, SQL, AWS stack Design and enhance interfaces, frameworks, and infrastructure pipelines Deliver API integrations and solve scaling challenges Tackle brownfield development and Legacy plumbing ...

Lead Java Engineer – Low Latency, High Throughput, Front Office, LMAX Disruptor, Aeron, Real-time Streaming, SQL, Fixed Income A Lead Java Engineer with expertise in low latency, high throughput Front Office trading systems is sought after by a global Investment Bank to join their Fixed Income … real-time streaming capabilities, re-architect into a highly componentised microservices based platform, as well as long-term strategic cloud migration. As a Lead Engineer, you will have direct input into shaping this modernisation programme with regards to future-state architecture, development approach and acting as a liaison between ...

Lead Java Engineer - Low Latency, High Throughput, Front Office, LMAX Disruptor, Aeron, Real-time Streaming, SQL, Fixed Income A Lead Java Engineer with expertise in low latency, high throughput Front Office trading systems is sought after by a global Investment Bank to join their Fixed Income ...

Principal Java Engineer London – Hybrid (1 day per week onsite) Are you a senior/lead hands-on Engineer who thrives in event-driven, asynchronous environments? Do you enjoy building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter? This is an opportunity … near-zero downtime. Design and implement high-throughput, low-latency systems processing millions of real-time payment events Build event-driven architectures using modern Java and reactive frameworks Work extensively with non-blocking I/O, asynchronous flows, back-pressure, and concurrency Contribute to system and API design, focusing ...

Java Engineer Salary to £ 45 k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV) clearance i.e. you have at least 5 years residency ...

exciting opportunity for a Java Software Engineer has arisen with a leading semiconductor company specialising in high-performance mixed-signal processing, based in London. This is an exciting opportunity for a Java Software Engineer to design and evolve cross-platform applications, SDKs, and developer tooling. … will commit to a hybrid working model, with a minimum of one day per week onsite in the London office. Experience for the Java Software Engineer includes: Desktop application development, ideally with Java UI frameworks e.g. JavaFx, Swing, Qt Object-oriented design and development Multithreaded development Desired ...

Senior Java Engineer - Permanent Salary: 55k-65k Working Arrangement: Fully Remote Tech Stack: Java, Spring Boot and Cloud Platforms(AWS, Azure and GCP) Desirable - Python and JavaScript I am currently working with a leading software software consultancy working with the government for a Senior Java Engineer. … best practices in software development. Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency ...

Full Stack Engineer – Java – AI Duration: 10 months contract Pay: PAYE Rate £632.91/Umbrella Rate £750 Location: 4 days onsite – London Full‐Stack Engineer with strong Java skills to design and build features for FX Trading applications, including AI‐driven capabilities that enhance decisioning, automation … Trading applications—is highly desirable. Excellent communication skills and proven ability to work within agile, cross‐functional teams. Core Technical Skills Backend: Strong Java development, Spring/Spring Boot, multi‐threaded and mission‐critical services, RESTful APIs, microservices, messaging (Kafka/MQ), and concurrency patterns. Frontend: Angular; exposure ...

Java Software Engineer Location : Bristol (hybrid 3 days on site) Salary : £50,000 – £75,000 + bonus + benefits Company Overview Our client is a globally recognised professional services organisation, delivering technology, consulting, and digital transformation services to some of the UK’s most critical sectors. They work … known for their strong engineering culture, commitment to innovation, and focus on developing talent within an inclusive and collaborative environment. Role Overview As a Java Software Engineer, you will work on secure, mission-critical systems within Central Government and Defence environments. You will be part of agile, cross ...

Cleared Data Engineer - Java, Spring Boot, Docker Hybrid - London (2-3 days onsite) £560 per day (Inside IR35) 12-Month Contract (Initial) We're currently looking for an experienced SC Cleared Data Engineer to join a high-profile programme based in London. Please note: Active Security Clearance … essential Must have 5+ years continuous UK residency (required for clearance eligibility) Key Skills & Experience Strong experience as a Data Engineer Proficiency in Java Hands-on experience with Spring Boot Experience working with Docker/Containerisation Experience building and maintaining scalable Data Pipelines Strong understanding of Data Processing ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered … Hybrid remote basis requiring 1/2 days per week of onsite work in Swindon or London. Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful ...

Senior Software Engineer Java, Microservices, Cloud Belfast (Hybrid) Location: Belfast Type: Permanent Salary: Competitive About the Opportunity: This role sits within a core backend engineering team responsible for building and evolving services that handle high volumes of data and user-generated content. These systems are critical to product … engineering-led environment focused on clean architecture, modern microservices, and continuous delivery. What Youll Be Doing: Design, build, and evolve scalable backend services using Java or Kotlin Contribute to the decomposition of monolithic systems into modern microservices Develop secure, high-quality APIs with a strong focus on reliability ...

Principle Java Engineer Salary to £ 7 0k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are a UK National and able to achieve SC (ideally DV ) clearance i.e. you have at least 5 years residency ...

recruiting for a Software Java Engineer on contract to work for a leading Defence organisation. The role can be based in their Newcastle offices 3 days per week and remote for 2. Role Overview The Software Engineer will join our collaborative, forward-thinking Agile Scrum team, working … innovative Geospatial software, using the latest cloud-based technologies. The engineer will be involved in every stage of the software development life cycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java ...

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote, adhoc; Leeds, London or Manchester) Project Overview This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising critical healthcare systems, improving access … secure, and interoperable digital services that support high-volume user interactions and integrate with multiple systems across the healthcare ecosystem. The Role As a Java Developer, you will be responsible for designing, building, and maintaining high-quality backend services within a complex, distributed system. You will work closely with ...

Backend Engineer (Java, Spring, AWS) 🚀 HealthTech Startup 📍 Hybrid-Remote: City of London (1 day per week in office) 💰 £55,000 - £60,000 Did you know conditions like Dementia and Parkinson’s disease affect millions globally, yet care is still largely reactive? We’re working with a pioneering startup … team and strong technical leadership, they’re now looking to make a key backend hire as they scale thoughtfully This is a Backend Product Engineer position with real ownership. You’ll join a small, high-calibre team where: You’ll touch everything, from core backend systems to product features ...