51 to 54 of 54 OpenAPI Jobs in the UK

and lifecycle management, including writing and prioritising user stories • Focused on Developer Experience (DX), ensuring clear documentation, onboarding, and versioning for API consumers • Knowledge of API technologies including REST, OpenAPI specs, and authentication methods • Excellent stakeholder management and communication skills, with the ability to translate technical solutions into business value • Familiarity with scaled agile frameworks such as SAFe, Lean More ❯

Lead Java Developer | Oxford - £120kJava, Springboot, Rest APIs, Microservices, TDD, DevOps, CI/CDA global leader in scientific publishing and data is hiring a Lead Java Engineer to lead the design and implementation of cloud-native & event-driven systems.With nearly More ❯

such as JDBC, SAP, MQ, and Flat File to enable integration with external systems and databases. Create and consume RESTful and SOAP-based web services, including WSDL, Swagger/OpenAPI specifications, and API Gateway configurations. Develop error handling and logging frameworks to support robust system operations. Skills and Experience Strong knowledge of the webMethods Integration Suite, both cloud and … and custom Java Services. Practical experience with adapters such as JDBC, SAP, MQ, and Flat File. Skilled in API management and web services, including REST, SOAP, WSDL, Swagger/OpenAPI, and API Gateway. Security Clearance This role requires Security Check (SC) clearance. To be eligible, applicants must have resided continuously in the UK for the last 5 years, without More ❯

at Performativ, you'll lead the design and implementation of robust, high-throughput APIs and backend systems. Everything we build is grounded in open web standards -HTTP, JSON, webhooks, OpenAPI -and built for scale, reliability, and clear interoperability. You'll work on the core systems that power mission-critical financial infrastructure for institutions across Europe. What you'll do … Design and implement modern, standards-based APIs using REST and OpenAPI specifications Build scalable backend systems that handle millions of HTTP/JSON transactions daily with low latency Develop and maintain secure, event-driven integrations via webhooks and callback mechanisms Lead the backend design of new products and services, ensuring interoperability and long-term maintainability Optimize for resilience, observability … re looking for 10+ years of backend engineering experience, with a strong focus on API development and integration Deep understanding of open web standards including HTTP, JSON, webhooks, and OpenAPI Track record of building reliable, low-latency systems at scale handling millions of daily API calls Experience with backend languages like Go, TypeScript (Node.js), Python, or PHP in production More ❯