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    Senior C++/Java HFT Software Engineer

    Quant Capital is seeking a Senior C++ Developer for a full-time role based in London. This position is critical for developing high-performance trading applications for a prestigious Prop Trading firm that emphasizes technology. The ideal candidate should possess strong C++ or Java skills. A competitiv ...

    Senior Platform Lead Engineer: Java/SpringBoot on GCP

    LinuxRecruit is seeking a Lead Developer in Greater London to spearhead the development of applications and APIs using Java within a SpringBoot framework on a GCP Platform. This role emphasizes leadership and mentoring junior developers, enabling personal and team growth in a dynamic and socially responsible env ...

    ASP.NET MVC Developer – London, Fast Paced Weekly Releases

    Java Script Works is seeking a full-time ASP.NET MVC Developer based in London, England to join a small team. The role involves working with a varied tech stack, including ASP.NET, C#, Angular, SQL, and JavaScript. The ideal candidate will have a computer science degree or equivalent and experience wit ...

    Senior Calypso Software Engineer – Java & API Specialist

    Nexus Jobs Limited is looking for a Senior Calypso Software Developer in London, United Kingdom. This role involves working with the Calypso API and Oracle DBMS to support back office processes like Settlements and collateral management. Ideal candidates should have strong Java skills and experience with CATT Au ...

    Senior Backend Software Engineer Java/Spring

    A technology solutions provider in the UK is seeking a Senior Software Developer to join their multi-disciplinary team. The ideal candidate will have strong Java skills, experience in Agile environments, and a passion for improving user outcomes. Responsibilities include developing digital solutions and leading ...

    Senior Developer — .NET, React & Azure Expert

    Java Script Works is seeking a Senior Developer in Greater London. This key role requires strong proficiency in C#, .NET, React, and Azure, working collaboratively with developers, UX/UI designers, and stakeholders to ensure high-quality products. The successful candidate will be responsible for drivin ...

    Hybrid Backend Engineer (Java/Kotlin) on AWS | Lead & Mentor

    A leading software company in London is seeking a Backend Software Engineer/Developer proficient in Java and Kotlin to join their team. This role offers a hybrid work-from-home flexibility and the opportunity to work with emerging technologies. Candidates should have strong experience in server-side development ...

    Hybrid Quant Python Engineer — London, High Growth

    Java Script Works is seeking a talented developer to join a leading Quant Investment management firm in London. This role offers an excellent working environment with ongoing training and a structured career path. You can expect a competitive salary along with a substantial bonus from day one. Skills required in ...

    WPF Software Engineer | SQL & React Focus

    Java Script Works in Borehamwood is seeking a Software Developer to design and maintain WPF user applications. The ideal candidate will apply SOLID principles in software design and have proficiency in SQL, with experience in React being helpful. This full-time position offers a salary range of £42,000 to £50,00 ...

    Next.js Frontend Engineer for SaaS Platforms

    Java Script Works seeks a Frontend Developer to enhance the development of their platform using React.js and Next.js. The role involves collaborating with UX/UI designers and back-end developers to create responsive, user-friendly web applications. Candidates should have a strong understanding of HTML5, CSS3, an ...

    Senior Mule/ESB Developer — Stock Options & Bonuses

    ObjectLab Ltd in London is seeking an Experienced ESB/Mule Developer to enhance our development team. The successful candidate will work on our global portfolio financing product, playing a crucial role in the team. Applicants should have strong Java skills, experience with ESB/Mule, and knowledge of m ...

    Fintech C# .NET Developer | Greenfield Projects

    Java Script Works is seeking a C# .NET Developer to join our team in London, United Kingdom. This full-time position requires strong skills in ASP.NET MVC, C#, SQL, and JavaScript. The role involves greenfield development and working with data analytics. Offered salary is up to £45K per year. Candidates should b ...

    Frontend Engineer — JavaScript/TypeScript + React

    Java Script Works, located in Barton-upon-Humber, is looking for a skilled developer to build and maintain custom JavaScript applications. The ideal candidate will have over 2 years of experience and proficiency in TypeScript, React, NodeJS, HTML5 Canvas, and Less. You will be responsible for developin ...

    Senior Software Engineer: Python & Java for Data Pipelines

    LSEG in the United Kingdom seeks a Python Developer to re-implement and test existing StarMine Quant models and build new models in collaboration with research teams. The ideal candidate has strong knowledge of Python, Java, or Kotlin, and experience in cloud application development. Responsibilities include bui ...

    React.js Engineer for Quant Hedge Fund (Typescript)

    Java Script Works is seeking a React.JS Developer to join a prestigious hedge fund located in Greater London. This role offers a competitive salary of £120,000 plus bonuses. The ideal candidate will possess strong expertise in JavaScript and Typescript, alongside ReactJS development. The successful can ...

    Senior Full Stack Engineer (TypeScript, React & GraphQL)

    Java Script Works in Greater London seeks a skilled developer to design, develop, and maintain web applications and RESTful APIs using TypeScript, GraphQL, React, and Node.js. The ideal candidate will have strong proficiency in TypeScript and JavaScript, with experience in React and state management libraries li ...

    Shopify Frontend Developer (React/Vue) SEO & Performance

    Java Script Works based in Tees Valley is seeking a developer with expertise in Shopify app development. You will implement new features, optimize site performance, and ensure a seamless user experience using Liquid, HTML, CSS, and JavaScript. Ideal candidates will have strong knowledge of JavaScript f ...

    Junior Automation & Workflow Developer

    Java Script Works is hiring a Junior Software Developer to work on enhancing their PHP, JavaScript, CSS, and HTML-based platform. The role involves developing automated workflows for efficiency improvement and optimizing existing functionalities. Candidates should have experience in JavaScript and familiarity wi ...

    Legal Tech Engineer (PHP/Laravel + Vue/React)

    Java Script Works, located in Nottingham, is seeking a developer skilled in PHP and JavaScript to shape the future of legal technology. Your role will involve writing testable code and working with a modern tech stack that includes Laravel, Vue.js, and AWS. The company emphasizes innovation in legal te ...

    Full Stack GIS Engineer for Public Sector Impact

    A digital transformation consultancy in Altrincham is seeking a Full Stack GIS Developer. You will work on innovative digital solutions that impact public services, collaborating with a multidisciplinary team to develop scalable applications. Candidates should possess strong skills in .NET, Java, or Python and h ...

    Python Full Stack Developer – Django | Finance & Quant

    Java Script Works is seeking a Python Full Stack Developer to join a high-profile client in London. The successful candidate will need a degree in Stats, Physics, or Engineering, with strong Python and Django development experience, along with some frontend JavaScript skills. This role offers an exciting opportu ...

    Node.js Developer for Scalable Web Apps

    Java Script Works in Wellington, United Kingdom is seeking a Node Developer to produce high-quality code for scalable web applications. The role demands expertise in JavaScript and a proven track record in development. This full-time position offers a competitive salary of up to £60K. Candidates should ...

    Node.js Developer with Security Clearance (Newcastle)

    Java Script Works is seeking a Node.JS Developer in Newcastle upon Tyne. This role is full-time and requires a minimum of 5 years of residence in the UK for a security clearance. Candidates should have experience with Node.js and JavaScript, along with familiarity in application security practices. The position ...

    Full Stack Engineer — Build Scalable API Ecosystems

    Java Script Works is seeking a Full-Stack Engineer based in Hook, United Kingdom. The ideal candidate should have proficiency in TypeScript, JavaScript, React, and Node.js, and experience in supporting and iterating on custom-built applications. This full-time role offers opportunities to scale an API ecosystem ...

    .NET Developer: ASP.NET, Azure & Cloud Apps

    Java Script Works is seeking a Software Developer (.NET) in Glenrothes, United Kingdom. The ideal candidate will have expertise in .NET, ASP.NET, and SQL Server, with strong JavaScript skills. The role requires experience in software testing and cloud services, particularly with Azure. The compensation ...

    Senior Salesforce UI/JS Lead (Visualforce)

    Java Script Works is seeking a Salesforce Developer - Lead in London, United Kingdom. The candidate must have strong hands-on experience with JavaScript and JQuery, and be adept at developing user interfaces using Visualforce. The role is full-time, offering a salary in the range of £60K - 75K. Ideal candidates ...

    Elite High Touch Trading Developer: Low Latency Connectivity

    Harrington Starr is seeking an experienced High Touch Trading Developer in London to build client-facing trading infrastructure. This role offers a competitive salary up to £160,000, a performance bonus, and comprehensive benefits. Key responsibilities include designing and implementing trading platfor ...

    Lead Full Stack Developer – Financial Services

    Genium Selection is seeking a Lead Developer for financial services in Weston-super-Mare. The role involves evolving the online insurance applications while leading a team in full stack development, primarily using JAVA and MySQL. You will collaborate directly with the business, analyzing existing syst ...

    Senior Java Engineer & Tech Lead — Remote

    Hyland is seeking a Developer to enhance product performance through solid coding practices and software engineering principles. The ideal candidate will have 5+ years of experience with Java, Spring Boot, and cloud solutions such as AWS and Azure. This role involves mentoring team members, leading sta ...

    Senior Front Office Software Engineer (C#/Java/.NET)

    hackajob is seeking a Senior Front Office Developer based in London. You will turn complex challenges into innovative software solutions using Python, Java, .NET, and web services. The role involves extensive collaboration, development, and adherence to secure coding practices. Successful candidates wi ...

    Senior Software Engineer – Dementia Care Platform

    A leading educational institution in the UK is looking for a Senior Software Developer to join their Dementia Research Institute. You will develop innovative healthcare technology and work with a multidisciplinary team to improve the lives of those affected by dementia. The role requires proficiency in programmi ...

    Cloud ECM Developer Documentum (AWS, DevOps)

    Experis is seeking a Documentum ECM Developer in Telford to develop, enhance, and support OpenText Documentum solutions in an AWS cloud environment. The successful candidate will focus on building scalable ECM features and applying DevOps best practices. The role involves designing and maintaining Docu ...

    Remote Full Stack JavaScript Engineer ByteHire

    ```htmlHighly Skilled Full-Stack JavaScript Developer ...highly skilled Full-Stack JavaScript Developer who has proven experience with strong React fundamentals and in-depth knowledge of Next.js features, including Server-Side Rendering (SSR), Static Site Generation (SSG), routing, and API routes. Y ...

    Senior Software Engineer Engineering Acceleration

    The Role As a Senior Software Engineer in our Engineering Acceleration Team, you won’t be working on a single product. You’ll be working across the organisation empowering our software engineering teams to move faster, building shared tooling that benefits multiple teams, and embedding with squad ...

    AI Azure Developer in Elland A SAFE GROUP

    AI Azure Developer Elland, United Kingdom Posted 9 months ago Tech stack Azure GraphQL GitHub Artificial Intelligence REST Python C Java API Below is a snippet of the jo ...

    Junior Trade Desk Developer in London Quant Capital

    Junior Trade Desk Developer Quant Capital London, United Kingdom Posted about 1 year ago This is a job posted by our partner Jooble Tech stack Java Python STEM Below is a snippet of the job description. To read the fu ...

    Software Engineer (Java / C++)

    Software Engineer (Java / C++) Date: Jun 18, 2026 Location: Abingdon, OXF, GB, OX14 4RW We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best ...

    Senior Java Software Engineer

    Could your Java expertise help build the next generation of publishing technology that advances science and improves lives? Are you excited by the opportunity to collaborate across Agile and DevOps teams, shape architecture, and drive continuous improvement in a cloud-hosted distributed environmen ...

    Experienced Backend Java Developers

    **_Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we bu ...

    Mid Java/Clojure Engineer

    **About the Role:** **Grade Level (for internal use):** 09**The Team:** OTC Derivatives Data provides consistent and reliable curve and volatility data for over-the-counter derivatives in support of trading, research, valuation and independent price verification. As a Java/Clojure Engineer ...

    Intermediate Java Software Engineer

    Department: Experience Design & Development Company Description Version 1 has celebrated over 26 years in Technology Services and continues to be trusted by global brands to deliver solutions that drive customer success. Our expertise enables our customers to navigate the rapi ...

    Java Full Stack Engineer

    IT Delivery Consultant - Currently Looking to speak with Permanent UCD Professionals (Service Design, User Researchers, Content Designers & UX Design) Salary - £55,000 per annum + Additional Benefits Remote with occasional client visits Candidates must be eligible to go thr ...

    Lead Software Engineer Java

    Lead Software Engineer - Java Join to apply for the Lead Software Engineer - Java role at TPXimpact | B Corp™ 2 days ago Be among the first 25 applicants About The Role Job Level: 10 UK Wide We are looking for a Lead Software Engineer who ...

    Java Backend with Microservices

    <p style="margin-bottom:20px"> Seeking an experienced Overseas Contractor with 5 to 7 years of expertise in Java Microservices to design and develop scalable backend solutions</p> <p style="margin-bottom:20px"> Job Description </p> <p style="margin-bottom:20px ...

    Senior Java Software Engineer

    Get AI-powered advice on this job and more exclusive features. This range is provided by James Adams. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from James Adams Lond ...

    Senior Java Software Engineer

    We are working with a business who are rebuilding their core platform from the ground up and are looking for a Senior Java engineer who’s up for a real challenge. Their system was originally built externally, and they've now brought it fully in-house. So, your mission is to get under the hood, unta ...

    Senior Java Software Engineer

    Valcon is a fast-growing European consulting, technology, and data company operating across the UK, the Netherlands, Denmark, Sweden, and Croatia. Backed by private equity, we have brought together some of the most exciting companies in consulting to build a modern, results-oriented firm focused on deliver ...

    Lead Software Engineer, Java

    Lead Software Engineer, Java Join to apply for the Lead Software Engineer, Java role at DolarApp Who we are Our vision is simple: a global financial system, without hidden fees or unfair FX rates. With control in the hands of the users instead of the hand ...

    Senior Software Engineer (Java)

    hackajob is collaborating with Kainos to connect them with exceptional professionals for this role. Join Kainos and Shape the Future At Kainos, we’re problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether we’re transforming digital service ...

    Front End Engineer: React & Next.js for Wealth Platforms

    Java Script Works is seeking a full-time developer to work with cutting-edge technologies like React, Next.js, and Ionic. You will deliver exceptional web and mobile user experiences across modern wealth management platforms. In this permanent role, you'll collaborate with UX designers to create user-centric int ...

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      Technical Java Developer Jobs in United Kingdom Job Search Guide, Trends and Insights