851 to 875 of 883 Java Jobs in the UK

ensuring the quality and reliability of complex digital solutions, bringing strong automation and integration testing expertise across a modern TypeScript and/or Java technology stack. KEY RESPONSIBILITIES Design, build, and maintain automated test suites using Playwright or Selenium Write and maintain test code in TypeScript and/or Java … candidates without this will not be considered Strong experience in test automation using Playwright and/or Selenium Proficient in TypeScript and/or Java for test development Solid experience with CI/CD tooling and integrating automated tests into deployment pipelines Proven integration testing experience across complex, distributed systems ...

Offer: Up to £75k (DOE). Permanent role. 2 days a week onsite in Central London. Key requirements: Design, implement, and maintain automated Java test frameworks for APIs, web services, and large-scale enterprise apps. Build and manage Selenium WebDriver test suites with Cucumber and BDD. Mentor junior testers … encourage a culture of excellence. You’ll need: 5+ years’ experience in test automation with Java as your primary language. Strong expertise in Selenium WebDriver , Cucumber , and BDD practices. AWS knowledge and SQL/database experience. This is a great time to join an exciting company and work on impactful ...

Technical Product Owner – Payments, Issuing, Ownership, Strategy, REST API, Java, Stakeholder Management – Financial Services – Northampton – Permanent Up To £75,000 base + bonus My client a leading financial services organisation are seeking a Technical Product Owner to join their growing technology team. This is an excellent opportunity for someone with … business teams. The ideal candidate will have: Experience working as a Technical Product Owner within an Issuing or Financial Service environment. Strong understanding of Java, JavaScript, and REST API fundamentals Strong stakeholder management and communication skills Experience working within Agile methodologies and cross-functional teams Ability to bridge ...

Market-leading Tech-For-Good specialist. Progressive and friendly start-up, fully remote (UK). Java Server Faces/PrimeFaces, JavaScript, Java. We’re working with a fast-growing software specialist helping children with Special Educational Needs and Disabilities (SEND). Delivering positive change for them in addition to local … development (Vue/React/Angular, TypeScript, HTML, CSS). Experience with JSF-based applications. Solid understanding of component-based architectures and web security. Java development skills. Accessibility standards (WCAG 2.2+). Strong interest in UI/UX design and usability Any experience working with maps/GIS is highly ...

Software Engineer (C++, Java, Python) Ampthill, Bedfordshire £ Hybrid working and 4 day work week option 37.5 hours per week Lockheed Martin (UK) Ampthill is a rapidly changing, dynamic part of the Lockheed Martin Corporation with both domestic and international customers. It consists of business areas focusing on Platform Integration, Ground … balance with a 4 day week (Mon-Thurs) and flexible working arrangements. The role: We are hiring a proven Software Engineer with strong C++, Java, Python programming skills to join the Ampthill, Bedfordshire Engineering Team. At Lockheed Martin, you'll work on meaningful, cutting-edge projects while developing your skills ...

Software Engineer (C++, Java, Python) Ampthill, Bedfordshire £(phone number removed) Hybrid working and 4 day work week option 37.5 hours per week Lockheed Martin (UK) Ampthill is a rapidly changing, dynamic part of the Lockheed Martin Corporation with both domestic and international customers. It consists of business areas focusing … balance with a 4 day week (Mon-Thurs) and flexible working arrangements. The role: We are hiring a proven Software Engineer with strong C++, Java, Python programming skills to join the Ampthill, Bedfordshire Engineering Team. At Lockheed Martin, you'll work on meaningful, cutting-edge projects while developing your skills ...

offer.. What you’ll be doing • Building high-quality, user-facing features using React and TypeScript • Contributing to backend services in Kotlin/Java • Working closely with Product and Design to shape and deliver impactful features • Owning problems end-to-end, from discovery through to production • Setting and evolving engineering … Experience as a key engineer in a startup or scale-up environment • Strong React and TypeScript expertise, with solid backend experience (Kotlin or Java) • A genuine product mindset — you think in terms of user outcomes, not just delivery • Proven ability to raise engineering standards and influence peers • Comfortable using ...

platforms within a front-office environment. Key responsibilities include: Designing and developing scalable server-side components in Python (with some exposure to Java where required) Building and enhancing systems that support real-time risk, pricing and PnL calculations Working closely with traders, quants and product stakeholders to understand complex requirements … skills - ability to operate in a fast-paced front-office environment Familiarity with Agile/Lean development practices Desirable: Experience with internal risk platforms Java exposure Computer Science (or equivalent) background McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds. ...

Mentor and develop a small team of engineers while promoting best practices Skills & Experience Strong experience with AI engineering, or software engineering (e.g. Python, Java, JavaScript/TypeScript etc.) with libraries/frameworks such as PyTorch, TensorFlow etc.) Experience with RAG and LLM-based solutions Solid understanding of AI architectures … work in the UK and live within commuting distance of Cardiff. Keywords: AI Engineer/Artificial Intelligence/Software Engineer/Python/Java/JavaScript/Cardiff Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody ...

execute development strategy aligned to business goals Own software delivery processes, timelines, quality standards and output Provide hands-on technical leadership within a Java environment Drive best practice across Agile, DevOps, CI/CD and engineering governance Manage and develop offshore engineering teams across multiple locations Build strong communication frameworks … initiatives Act as a succession hire for a future Deputy CTO role What They’re Looking For Strong background in software engineering with deep Java experience Proven leadership experience running engineering teams and delivery functions Track record managing offshore or distributed development teams Experience owning the full software development lifecycle ...

performance improvements, and architectural evolution. 5+ years of professional Android development Strong proficiency in idiomatic Kotlin, including asynchronous coding (coroutines, Deferred, Flow) Proficiency in Java 8+, including multithreading and concurrency Experience with Jetpack Compose, as well as legacy Android XML Views Experience with Fragments and FragmentManager Solid understanding of standard …/CD pipelines such as Azure Pipelines or similar Comfortable in a team environment using code review and version control Technology Stack: Android: Java 8+, including multithreading and concurrency Kotlin MVVM Jetpack Compose, as well as legacy Android XML Views Nice to have: MongoDB SQL Experience building KMP modules Familiarity ...

Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior ...

Engineering Expertise – Individual must display deep practical experience with how CICS runs on z/OS, beyond application development. IBM WebSphere Liberty (CICS Liberty) & Java Runtime Skills - A CICS Liberty Infrastructure Engineer must understand Liberty as a runtime and have experience in configuring the runtime Security, Integration & Modern Ops Practices … dumps, traces, SMF data, and logs WebSphere Liberty configuration (server.xml, features, shared libraries) JVM tuning for z/OS (heap sizing, GC behaviour) Managing Java workload inside CICS (JVM servers lifecycle, diagnostics) Patching and maintaining Liberty and Java SDK levels RACF and TLS configuration (certificates, keyrings, SAF integration) REST/ ...

capable of verifying pricing numbers against market standards and supporting client-facing validation documentation. Python is the preferred primary programming language, while strong Java experience is also highly preferred because the team works primarily in a Java-based environment. Candidates with C++ background can also be considered if they have ...

days/week, 2 days/week WFH Years of Exp: 3-9 years Skills: Full Stack, Kotlin (essential), TypeScript (essential), CI/CD, Java £25-£40/hr depending on experience and assessment level, Inside IR35 Visa sponsorship is not available. Strong fundamentals of Computer Science to scale developments. … Excellent communication & interpersonal skills. Creative and a good team worker. Kotlin (or strong Java) & TypeScript mainly – full stack ideally. Fundamentals are very important. Data structures, algorithms & system designs. Online test will be given in the first instance. Successful candidates will go through a 2 round interview process. GitHub could help ...

retrieval-augmented generation (RAG) systems. Key Responsibilities Design and develop scalable full-stack solutions involving both frontend (React/TypeScript) and backend (Python/Java). Build and optimize AI/ML pipelines leveraging LLMs and RAG architectures. Develop SDKs and APIs to support AI-driven applications in resource-constrained … based products. Ensure high performance, testability, and reliability across the stack. Key Qualifications Strong proficiency in Python and React/TypeScript; experience with Java is a plus. Hands-on experience building and deploying LLM-based systems (e.g., OpenAI, Hugging Face Transformers, LangChain, etc.). Deep understanding of AI application architecture ...

cloud data architectures on GCP Develop solutions using services such as BigQuery, Dataflow, Spanner and Cloud Storage Build and maintain code using Python, Java or Scala for data transformation and processing Optimise data pipelines, queries and workloads for performance and scalability Implement data quality, validation and governance controls Collaborate with … Data Engineer: Strong experience as a Data Engineer within GCP environments Hands-on experience with BigQuery, Dataflow and Spanner Strong programming capability in Python, Java or Scala Experience with Apache Beam/Dataflow and distributed processing frameworks Experience designing and managing ETL/ELT pipelines Solid understanding of data modelling ...

Frontend/UX & Development Skills required UI development or support experience Experience with two or more of the following:Ability to read and debug Java and JavaScript (JavaScript coding is a plus) CSS, AJAX, ReactJS, GraphQL, AngularJS Mobile application development Experience using browser developer tools for troubleshooting Experience & Technical Skills … application architecture Scripting experience (JavaScript, Python, Perl, Unix Shell, Windows Shell) Experience with relational databases (e.g. MySQL, Oracle) Experience with object-oriented programming (Java preferred) Familiarity with Linux/Unix or Microsoft Server environments Mobile application support experience (desirable) Qualifications Bachelor’s degree in Computer Science or a related field ...

Physicists/Software Engineers will be developing modelling tools/software in C++, C#, Python, Java, Matlab or other Mathematical languages. Ideal applicants will be qualified Physicists (MPhys, MSc or PhD) or Computational Physicist or Scientist/Engineer with an interest in Software Development/Modelling using C, C++, Java … senior role in the company and take on substantial product responsibilities. Requirements: some experience at graduate level or beyond in either C, C++, C#, Java, Python or Matlab You will will have an excellent first degree in Physics or Maths (1st/2.1) A PhD in a computational physics/ ...

play a key role in the development, configuration and optimisation of the Guidewire platform, working extensively with Gosu as the core programming language, alongside Java where required. This role requires a strong hands-on Gosu developer, comfortable building and customising Guidewire application. You will be involved in both the ongoing … Responsibilities: Design, develop and maintain Guidewire configurations using Gosu Write and optimise Gosu code across business rules, workflows, integrations and UI components Work with Java-based components and APIs within the Guidewire ecosystem Support the migration to Guidewire, contributing to build, configuration and delivery Collaborate with business analysts and stakeholders ...

banks, asset managers, fintechs and exchanges. This role sits at the intersection of engineering excellence, client engagement, and strategic delivery — working hands-on in Java to design and build highly performant, resilient, low-latency trading platforms across OMS, EMS and exchange connectivity environments. What you’ll be doing Designing … mentoring engineers, driving technical quality across teams Escalating and articulating technical risks clearly to leadership and clients What we’re looking for Strong Java engineering background with a focus on highly performant, low-latency systems Significant experience in capital markets technology environments Experience building solutions within: Order Management Systems ...

developing scalable backend systems that process and analyse real-world data from IoT devices. Key Responsibilities Design, develop, and maintain backend software systems in Java or C# Build scalable platforms for ingesting and analysing data from ANPR and IoT devices Develop RESTful APIs and collaborate with front-end developers Ensure … validate systems against real-world scenarios What They’re Looking For Previous experience in a similar role in software development Strong skills in Java and/or C# Experience with build tools such as Maven, Gradle, Ant or .NET Experience using Git for version control Proven experience building RESTful APIs ...

developing scalable backend systems that process and analyse real-world data from IoT devices. Key Responsibilities Design, develop, and maintain backend software systems in Java or C# Build scalable platforms for ingesting and analysing data from ANPR and IoT devices Develop RESTful APIs and collaborate with front-end developers Ensure … Test and validate systems against real-world scenarios What Theyre Looking For Previous experience in a similar role in software development Strong skills in Java and/or C# Experience with build tools such as Maven, Gradle, Ant or .NET Experience using Git for version control Proven experience building RESTful ...

incrementally without disrupting live trading. This is not a greenfield role. Success comes from adding value immediately within a large, demanding codebase — understanding existing Java and .NET systems well enough to reason about trade-offs, guide refactoring or selective rewrites, and make sound architectural decisions under pressure. The roadmap … using agentic AI tools to accelerate understanding of large, unfamiliar codebases and complex system behaviour, not just development. Comfortable reading and reasoning about large Java and .NET codebases to inform architectural decisions, modernization strategy, and platform transition planning London‐based, with on‐site presence required 3 days per week minimum ...

release to monitor and review live games. Day-to-day responsibilities may include monitoring existing products, conducting internal playtesting and reviews, developing tools in Java or Python, and solving complex mathematical problems to meet specific requirements. Creativity and a strong understanding of probability, statistics, and player engagement are essential … knowledge of combinatorics, probability theory, and quantitative analysis. Experience running Monte Carlo simulations, including interpreting data and refining models accordingly. Intermediate experience of the Java programming language and with Microsoft Excel. Understanding of Object-Oriented Programming (OOP) principles. Excellent verbal and written communication skills. Desirable Experience Prior experience working with ...