api developer jobs in London

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10,000 api developer job listings in United Kingdom. Find daily updated positions from leading job boards.


  • Charing Cross, London, United Kingdom Gartner Full-time

    Sr.A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible.Director Analyst – AI Integration & API ManagementGartner for Technical Professionals PracticeAbout this Role:Gartner is seeking a Sr.Director Analyst to join our Technical Professionals practice, focusing on AI...


  • London, England, United Kingdom ARM International Full-time

    ARM International in London is seeking experienced Senior C# .NET Developers to join a strategic technology transformation programme within a leading international banking environment.Design, develop and enhance enterprise-grade applications across front-, middle- and back-office domains. Collaborate with architects, analysts, data engineers and QA to...


  • London Borough of Bromley, England, United Kingdom Infosys Full-time

    Infosys in Bromley, UK is seeking a highly skilled Scala Developer to design, develop, and maintain high-performance APIs and backend services. The role emphasizes strong Scala, Java, and MySQL proficiency to deliver scalable software solutions.The candidate will collaborate with cross-functional teams, participate in code reviews, and support CI/CD and...


  • London, England, United Kingdom Arm Full-time

    Arm in London is seeking an experienced Senior C# .NET Developer to join a strategic technology transformation programme on a contract basis. The role focuses on designing, developing and enhancing enterprise-grade applications across front-, middle-, and back-office domains within a regulated banking environment.You will work with Solution Architects, Tech...


  • London, United Kingdom 4square Recruitment Ltd Full-time

    Full job description Full-Stack Software Developer Remote | Full-time A growing cyber security consultancy is looking for a Software Developer to build and maintain web applications that help organisations protect their systems and data. You’ll work across the front end and back end, developing practical tools used in real-world cyber defence. You’ll...


  • London, England, United Kingdom Neguinho Motors Ltd Full-time

    Neguinho Motors Ltd is seeking a skilled Full-Stack Developer to join our London team. You will build and maintain modern stateless applications with RESTful APIs, leveraging Laravel 10, PHP 8.2, Backpack Admin, Electron.js, React Native, and MySQL.This role covers web and desktop applications, ensuring seamless back-end and front-end integration with...


  • greater london, england, United Kingdom, England Mapbox Full-time £100,000 - £150,000

    Mapbox is the leading real-time location platform for a new generation of location-aware businesses. Mapbox is the only platform that equips organizations with the full set of tools to power the navigation of people, packages, and vehicles everywhere. More than 4 million registered developers have chosen Mapbox because of the platform’s flexibility,...


  • London, England, United Kingdom S.i. Systems Full-time

    Our Financial Services Client is looking for a Senior Platform TECH LEAD (Temenos/T24) with APIs experience to develop, and implement software/system solutions for improving the functionality of core banking applications and services. Must Have:Experience building and consuming APIs, working with relational databases, and what it takes to run code in a...


  • greater london, england, United Kingdom, England HSBC Holdings plc Full-time £70,000 - £120,000

    HSBC Holdings plc ищет руководителя продукта для API Platform в рамках крупной банковской экосистемы. Вы будете определять дорожные карты, сотрудничать с командами по продукту, Channel и ИТ, чтобы обеспечить...


  • greater london, england, United Kingdom, England Depop Full-time £90,000 - £125,000

    Depop, London-based, seeks a Senior Technical Product Manager to own the API platform and backend enablement space, focusing on developer experience for internal engineers. You will identify gaps early and shape a roadmap that supports cross-team features and experiments with ambiguity and technical dialogue.You will partner with engineering leads, platform...


  • London, England, United Kingdom S.i. Systems Salary Full-time

    Duration: 12 months to startLocation: Downtown Toronto /Waterloo - Hybrid, onsite 2 days per week (3 days optional) Join a Data & Digital engineering team supporting enterprise data platforms, analytics ecosystems, and AI-enabled solutions within a large insurance environment. This role contributes to application modernization, API development, cloud...


  • City of London, England, United Kingdom, England 4Square Recruitment Ltd Remote Full-time £50,000 - £75,000

    Full job descriptionFull-Stack Software DeveloperRemote | Full-timeA growing cyber security consultancy is looking for a Software Developer to build and maintain web applications that help organisations protect their systems and data.You'll work across the front end and back end, developing practical tools used in real-world cyber defence. You'll have the...


  • london, United Kingdom GSK Full-time

    Director Procurement - API and Excipients Business Introduction GSK remains committed to achieving bold commercial ambitions for the future. By 2031, we aim to deliver 40 billion in annual sales, leveraging our existing strong performance momentum to significantly increase our positive impact on the health of billions of patients globally. Our Ahead...


  • london, United Kingdom NatWest Group Full-time

    Join us as an API Software Engineer This is an opportunity for a driven Software Engineer to take on an exciting new career challenge Day-to-day, you'll be engineering and maintaining innovative, customer centric, high performance, secure and robust solutions It’s a chance to hone your existing technical skills and advance your career while building a wide...


  • City of London, England, United Kingdom, England Salt Search Full-time £90,000 - £120,000

    Salt Search is seeking a Senior Golang Developer to help build a modern, globally scalable Loyalty & Benefits platform. You will work in an Agile engineering team, delivering high‑performance microservices and RESTful APIs in a cloud‑native environment.The ideal candidate has strong commercial Golang experience, hands‑on with Docker and CI/CD, and...


  • London, England, United Kingdom S.i. Systems Full-time

    Senior API Architect – API Platform, Security & IntegrationType: Permanent/FTELocation: Etobicoke (Hybrid, 3x/week)Overview:The API Architect is responsible for the technical design and overall architecture of the clients API platform. In concert with site reliability engineering, owns the technical implementation of the API development life cycle and the...


  • London, England, United Kingdom Duffel Full-time

    Duffel in London is seeking a Software Engineer to design and build APIs for travel distribution. This is a hybrid role based in Shoreditch. You will integrate various travel providers while ensuring a fantastic developer experience.The ideal candidate should have strong skills in API design and engineering standards, and a passion for technology that...

  • API Engineer

    6 hours ago


    London, England, United Kingdom Gigs Full-time

    About GigsAt Gigs, we're building the operating system for mobile services—a platform that lets tech companies embed global connectivity into their products effortlessly.Just as Stripe lets any business add a payment button in seconds, Gigs empowers platforms to weave in connectivity—bridging the traditional world of telecom with modern tech. From...

  • Technical Analyst

    3 days ago


    london, United Kingdom Lorien Resourcing Full-time

    Sector: IT Reference: BBBH _ Technical Analyst (JSON, API) Hybrid Working - London - 2 days a week on site. Financial Services Lorien's leading banking client is looking for a Technical Analyst to join a collaborative Agile technology team within the Financial Services sector. The successful candidate will translate complex business requirements into...


  • City of London, England, United Kingdom, England AWD online Full-time £70,000 - £85,000

    AWD online is seeking a Senior Software Developer to blend hands-on engineering with technical leadership across UK applications. You will work with analysts and architects to translate requirements into secure, maintainable solutions aligned with platform standards.You will help plan, review code, test, and ensure release readiness while promoting...