8 of 8 Contract OAuth2 Jobs in London

driving secure service delivery, and contributing to engineering standards across engagements. Key Responsibilities Design and develop backend services using Java and Spring Boot Architect and implement secure APIs using OAuth2, FAPI, OpenID Connect Ensure backend services are performant, scalable, and resilient Collaborate with frontend, DevOps, and QA teams to deliver integrated solutions Participate in architecture reviews, technical design sessions, and … backend assets and CoE standards Required Skills and Experience Extensive hands-on experience with Java and Spring Boot in enterprise environments Proven expertise in designing and delivering secure APIs (OAuth2, FAPI, OpenID Connect) Strong understanding of microservices architecture and distributed systems Experience working in regulated environments (banking, fintech, insurance) Familiarity with CI/CD pipelines , Docker , and cloud platforms (e.g. More ❯

reusable engineering assets across client engagements. Key Responsibilities Design, develop, and maintain backend services using Java and Spring Boot Build and integrate secure APIs aligned with industry standards (e.g., OAuth2, OpenID Connect) Contribute to the development of microservices architectures and distributed systems Collaborate with frontend, DevOps, and QA teams to deliver cohesive, end-to-end solutions Participate in technical design More ❯

custom policies using JavaScript, Node.js, or Python for API management platforms. Collaborate on CI/CD pipelines and containerized deployments using Docker and Kubernetes. Ensure application security including OAuth 2.0, OIDC, CORS, CSRF, and cookie management. Write and maintain unit and functional tests using frameworks like Cypress. Optimize Back End performance and ensure high availability. Work with SQL and More ❯

understanding of common design patterns (abstraction, factory, adapter, faade, iterator, etc.) FASTAPI Specialist: In-depth knowledge of FASTAPI internals; ability to extend and customize Experience integrating authentication (Azure AD, OAuth2) and applying API security best practices Containerization & Orchestration: Proven experience containerizing APIs (Docker) and deploying on orchestration platforms (Kubernetes) LangChain/LangGraph (or similar): Understanding of agent-based frameworks, callbacks More ❯

automated HR and Payroll processes efficiently. Responsibilities and Duties: API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. Use Python (e.g. FastAPI) and Azure services (e.g. Azure Functions … support user acceptance testing Deliver training, handover materials, and ongoing technical documentation.Share best practices and contribute to continuous improvement. About you: Experienced in developing RESTful APIs and implementing OAuth 2.0 authentication. Skilled in Python (preferably FastAPI), Git, SQL, and cloud services like Microsoft Azure. Familiar with technologies such as: Airbyte, Rivery and Hevo Familiar with HR, Payroll, Recruitment, and More ❯

automated HR and Payroll processes efficiently. Responsibilities and Duties: API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. Use Python (e.g. FastAPI) and Azure services (e.g. Azure Functions … support user acceptance testing Deliver training, handover materials, and ongoing technical documentation.Share best practices and contribute to continuous improvement. About you: Experienced in developing RESTful APIs and implementing OAuth 2.0 authentication. Skilled in Python (preferably FastAPI), Git, SQL, and cloud services like Microsoft Azure. Familiar with technologies such as: Airbyte, Rivery and Hevo Familiar with HR, Payroll, Recruitment, and More ❯

real impact and purpose. Key responsibilities: React Native Developer (Expo) Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. What we're looking for: React Native Developer (Expo … Tech 4+ years experience with React Native, ideally using the Expo SDK Strong knowledge of native module development in Kotlin/Swift Exposure to cryptographic principles, MIME standards, and OAuth2 Hands-on experience with secure systems, testing frameworks, and Git workflows Excellent communication and problem-solving skills If youre ready to build meaningful tech with a team that values innovation More ❯

real impact and purpose. Key responsibilities: React Native Developer (Expo) – Secure Tech Build performant, secure mobile applications using React Native (Expo), Kotlin, and Swift. Integrate with Gmail APIs, manage OAuth2 flows, and handle MIME payloads. Implement responsive UIs from Figma designs. Contribute to architecture, automated testing, and CI/CD pipelines. What we're looking for: React Native Developer (Expo More ❯