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    Backend API Developer: Python/Node.js & Microservices

    Java Script Works is seeking a Software Developer in London to develop scalable software solutions, writing clean and efficient code in languages such as Python and JavaScript. The role requires participation in code reviews, testing cycles, and API development. The position offers a competitive salary ...

    .NET Backend Developer Azure & Microservices

    A leading technology consulting firm in Greater London is seeking a Dot Net Backend Developer to build secure, scalable backend services and cloud-native applications. This role involves developing with .NET Core, managing Azure PaaS components, and collaborating with cross-functional teams. The ideal candidate ...

    Remote Go Backend Engineer Telco API & Microservices

    A leading utility provider in Greater London is seeking a Software Engineer to join their Telco Experience Team. You will design and implement backend systems using Go, while collaborating with various stakeholders to deliver customer-focused features. This role emphasizes teamwork and effective communication, c ...

    PHP Developer Intern — Backend & API Builder

    A modern tech firm is seeking a proactive PHP Developer Intern to join their development team in Greater London. This role offers a fantastic opportunity to gain real-world experience in backend and web application development using PHP. Interns will collaborate with experienced developers on live projects, enha ...

    Backend Engineer API

    About xAI xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves ...

    Backend Engineer API

    xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We ...

    Backend Engineer API

    xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We ...

    API Developer

    Ameresco, Inc. has an immediate opening for an API Developer in our ASG (Asset Sustainability Group). Responsibilities Collaborating directly and independently with customers and third parties to architect and develop API solutions that align with business objectives. ...

    API Developer

    An API developer builds the digital bridges that connect software applications enabling seamless data exchange and integration. A quick snapshot of demand, education, field, and salary expectations. Market Demand Very High Average Salary $130,000+ Education Level Undergradua ...

    Backend / API Engineer, Payouts

    As a Backend/API Engineer on Stripe's Payouts team, you'll build the systems that move money from Stripe to millions of business bank accounts worldwide. You'll design reliable payout APIs, improve speed and accuracy of fund transfers, and work on complex problems at the intersection of engineering and fin ...

    Python Backend Developer

    Job Title: Python Backend Developer Job Type: Contract Job Location: London , UK Job Description: Python Backend Developer: We need a senior developer with extensive knowledge on building scalable python ...

    Python Backend Developer

    Job Title: Python Backend Developer Job Type: Contract Job Location: London , UK Job Description: Python Backend Developer: We need a senior developer with extensive knowledge on building scalable python ...

    Senior API Developer to support the design, development, and deployment of scalable, secure microservices based applications.

    Our client is seeking an experienced API Developer to support the design, development, and deployment of scalable, secure microservices-based applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, and RESTful API development in an enterprise environment.This rol ...

    Senior API Developer to support the design, development, and deployment of scalable, secure microservices based applications.

    Our client is seeking an experienced API Developer to support the design, development, and deployment of scalable, secure microservices-based applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, and RESTful API development in an enterprise environment.This rol ...

    Java Backend developer

    We are looking for an experienced Backend Developer with strong Java skills to build and maintain scalable, high-performance backend services and APIs for a large microservices-based trading platform. Key Responsibilities Develop and maintain backend services and API ...

    API Developer Java

    Job Description The team you'll be working with: NTT DATA UK is looking for a Java Developer with Microservices and AWS experience to join their team. What you'll be doing: The role involves developing clean, well-tested, and maintainable ...

    API Developer Java

    Job Description The team you'll be working with: NTT DATA UK is looking for a Java Developer with Microservices and AWS experience to join their team. What you'll be doing: The role involves developing clean, well-tested, and maintainable ...

    Python Backend Developer

    Join to apply for the Python Backend Developer role at Falcon Smart IT (FalconSmartIT) . We are seeking a senior developer with extensive experience in building scalable Python backend solutions. The ideal candidate should be proficient in supporting dozens of concurr ...

    Senior Python Developer Banking Experience

    Senior Python Developer - Banking London, UK | Hybrid | £70,000-85,000 Permanent We’re hiring a Senior Python Developer to join a high-performing engineering team within a banking environment. Key Responsibilities Build and scale Python-based backend system ...

    Senior Java Developer

    Role Overview We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our Live Casino platform, ensuring it can support high‑concurrency gameplay, real‑time interactions, and a distributed micro ...

    Backend Developer

    Job Description:As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration.Key Responsibili ...

    Backend Developer

    Job Description As a Specialist II in Backend Development, you will leverage your expertise in Java 17/21 and Java EE library migrations to enhance and upgrade middleware systems. Your role will involve working with Oracle 19C databases and ensuring seamless SOAP/REST integration. Key Resp ...

    Backend Developer

    About Us At Octopus we're passionate about powering a sustainable future. As pioneers in the renewable energy space, we don’t just invest in utility scale projects; we invest in people, communities and a greener tomorrow. We're on a mission to transform the renewable energy generation spa ...

    Backend developer

    Who we are and what we do: Element Human (Crowd Emotion Ltd) has been around for six years, learning about emotions and working through several iterations of our new HX Workbench. We currently primarily work with brands, agencies and publishers, but we support anyone who wants to understand how p ...

    Backend Developer

    Overview Location: City Of London, England, United Kingdom We are seeking an experienced Backend Developer to design, develop, and maintain scalable backend services and REST APIs using Python and Node.js. You will work closely with product, front-end, and DevOps teams to deliver high-performa ...

    Backend Developer

    Fogsphere is a London‑based innovator focused on transforming workplace and urban safety through advanced AI, Computer Vision, and Industrial IoT. Built on a principled “Edge‑to‑Fog‑to‑Cloud” architecture, our platform turns passive CCTV cameras and sensors into proactive hazard detectors, capable of ident ...

    Backend Developer

    Ready join our 130,000 colleagues and support our mission to make people and places the bestthey can be? Be the difference today, connect with our careers team to learn more. Join The Team We always have vacancies for enthusiastic, talented and loyal people to fill roles within our team. Jo ...

    Backend Developer

    One of the UK's largest media distributors is looking for a Backend Developer to be a large cog in their development wheel. The team you'll be joining is quite small so this is a great opportunity to showcase your skills and make an impact at this Central-London-based company.They are looking for someo ...

    Backend Developer

    One of the UK's largest media distributors is looking for a Backend Developer to be a large cog in their development wheel. The team you'll be joining is quite small so this is a great opportunity to showcase your skills and make an impact at this Central-London-based company.They are looking for someo ...

    Backend Engineer III – Cloud Microservices

    hackajob is looking for a Software Engineer III to deliver an outstanding banking experience at JPMorgan Chase. This role involves developing cloud-native microservices and ensuring software reliability, while requiring strong Java programming skills and experience in distributed systems. The ideal candidate wil ...

    Lead Backend Engineer, Python Microservices

    Lead Engineer, Back End, Agentic intelligence London, UnitedKingdom Posted 12 months ago Tech stack ecosystem Backend Python Job Opportunity at Choreograph: Back-End Engineer Choreograph is seeking an experienced and forward-thinking Back-En ...

    Backend Engineer Scalable Payments & Microservices

    Wise is looking for a Backend Software Engineer to help build a new network for the world’s money. You will design and maintain scalable services, optimise relational databases, and collaborate with teams globally to enhance the payment platform. Ideal candidates will have strong experience with Java 8+ and the ...

    Kotlin Backend Engineer Scalable Microservices

    Pleo is seeking a Backend Engineer in Greater London to design and maintain scalable microservices primarily using Kotlin. You will collaborate with cross-functional teams, analyze system performance, and mentor other engineers. The role emphasizes innovation, problem-solving, and high code quality. Benefits inc ...

    Distributed Backend Engineer (JVM Microservices)

    Fault Tolerant, Production Ready Distributed Backend Systems You have experience in any JVM based languages (such as Java, Kotlin, Scala) and are confident in your ability to build, debug, and ship microservices. You are customer-focused and continuously suggest how the... <h ...

    Backend Engineer Cloud FinTech Microservices

    A leading fintech company in Greater London seeks a Back End Engineer to develop their Vault product. You will design and implement microservices while working collaboratively with engineering teams. Ideal candidates have experience in Python or Golang, automated testing, and knowledge of banking. This role offe ...

    Lead Backend Engineer, Python Microservices

    Lead Engineer, Back End, Agentic intelligenceLondon, UnitedKingdomPosted 12 months agoTech stackecosystem Backend PythonJob Opportunity at Choreograph: Back-End EngineerChoreograph is seeking an experienced and forward-thi ...

    Backend & API Engineer, Payouts Platform

    A leading technology recruiting firm is seeking a Backend/API Engineer to join the Payouts team, focusing on building systems that facilitate money transfers. The role involves designing reliable payout APIs and improving the speed and accuracy of fund transfers, addressing complex challenges at the intersection ...

    Senior Backend Engineer Payments & API

    A financial technology company in Greater London is searching for an experienced Software Engineer to lead the design of their B2B API and payments infrastructure. Ideal candidates have at least 8 years of software engineering experience, a background in financial services, and are comfortable working with Node. ...

    Dynamic .NET API & Backend Engineer

    A leading technology solutions provider in the United Kingdom is seeking full-time IT Engineers with a background in .NET development. The role involves developing new product features, participating in system design, building APIs, and providing support for bug fixes. Candidates should have at least 2 years of ...

    Software Engineer (100% Backend, Python & AWS)

    Software Engineer (Backend, Python & AWS) – Travtus London (Hybrid – 3 days/week in Farringdon office) • Full-time • Salary: £60,000-£80,000 Job Summary We’re building the next generation of AI products in Multifamily real‑estate. We need a backend engineer to architect reusable ...

    Integration Architect – Microservices / Middleware / SOA / API / EDA

    Integration Architect – Microservices / Middleware / SOA / API / EDA Up to £625 per day (Inside IR35)Hybrid (Primarily Remote)6 monthsMy client is a high-profile consultancy who are seeking an Integration Architect to support a large-scale Strategic Infrastructure Programme for an instantly recognisable end clie ...

    Integration Architect – Microservices / Middleware / SOA / API / EDA

    Integration Architect – Microservices / Middleware / SOA / API / EDA Up to £625 per day (Inside IR35)Hybrid (Primarily Remote)6 monthsMy client is a high-profile consultancy who are seeking an Integration Architect to support a large-scale Strategic Infrastructure Programme for an instantly recognisable end clie ...

    Backend Software Engineer Java Fintech

    Backend Software Engineer / Dev ...

    Backend Software Engineer Java Fintech

    Backend Software Engineer / Dev ...

    Senior Backend Engineer (Golang) – Scalable Microservices

    Socure is looking for a skilled software engineer in London to architect, develop, and maintain scalable backend services. The ideal candidate will have 5–8 years of experience with strong proficiency in Golang and a solid understanding of system design. Responsibilities include designing tests to ensure reliabi ...

    Lead Backend Engineer Cloud Native Microservices

    A major global banking institution is seeking a Lead Software Engineer to develop cloud-native applications in a collaborative environment. The ideal candidate will possess strong Java programming skills and experience with cloud technologies, particularly AWS. Responsibilities include delivering end-to-end solu ...

    Senior Backend Engineer AI Platform & Microservices

    FOX Tech in Greater London is looking for a Senior Backend Engineer to join their Emerging Tech team. You will be responsible for designing and developing scalable APIs, services, and infrastructure to power a multimodal AI platform. The role demands strong skills in TypeScript and/or Python, experience with clo ...

    Data & AI Backend Engineer | Microservices & LLMs

    Design, develop, test, and support robust, production-ready software solutions , adhering to modern engineering best practices. Build and maintain microservices-based systems , with a strong focus on scalability, resilience, and performance. Develop and optimise scal ...

    Principal Backend Architect Java/Spring Microservices

    Verifone is seeking a Principal Software Engineer based in London to lead backend services for their payment gateway system. In this role, you will design core platform capabilities, make architectural decisions across microservices, and guide engineer teams while working hands-on with Java and Spring Boot ap ...

    Senior Backend Engineer Python/Golang Microservices

    Thought Machine in Greater London is seeking a Back End Engineer to lead the development of their Vault product. The ideal candidate must have over 6 years of experience as a Software Engineer and proficiency in Python or Golang. The role involves designing scalable microservices, writing automated tests, and ma ...

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