9 of 9 Contract OpenAPI Jobs in the UK excluding London

scalable algorithms and write clean, maintainable, and well-structured Python code. Design and develop RESTful APIs using frameworks such as FastAPI, Flask, Django, and OpenAPI/Swagger. Perform data manipulation and analysis using Pandas and NumPy. Design, query, and maintain relational (eg PostgreSQL) and NoSQL databases (eg MongoDB). ...

Required Skills Java , Spring Boot , JUnit , Kubernetes Experience working on Central Government projects Desirable Skills JPA, Maven, Mockito, AWS, GitLab CI/CD, Helm, OpenAPI, SQL, Kibana, Shell scripting ...

quality solutions Required Skills Java , Spring Boot , JUnit , Kubernetes Experience working on Central Government projects Desirable Skills JPA, Kibana, Maven, Mockito, AWS, GitLab, Helm, OpenAPI, SQL, Shell scripting Why Apply? Long-term contract (12 months) Flexible working arrangements Opportunity to work on high-impact government modernisation projects ...

production with a focus on scalability, reliability, and security . Key Responsibilities: Design and evolve Back End services using Python and REST APIs/OpenAPI . Build and maintain relational databases (PostgreSQL or similar) and ensure performance and reliability. Contribute to event-driven systems , async workflows, and authentication/ ...

Deep understanding of OAuth 2.0, OpenID Connect, mutual TLS, certificates, token management, and consent-driven access control. Experience interpreting and applying standards such as OpenAPI, FAPI, and relevant regulatory technical standards. Architecture, Strategy, and Solution Design Significant experience operating as a Solution Architect in complex financial services environments. Proven ...

synchronous/asynchronous). Lead the design of distributed microservices, ensuring scalability, resilience, observability, and maintainability. Apply schema-driven design principles (e.g., JSON Schema, OpenAPI, AsyncAPI) to ensure consistent and reusable domain models. Cloud & Platform Engineering (AWS) Select and integrate AWS services (EC2, Lambda, API Gateway, S3, DynamoDB … experience with APIs (REST, event-driven, messaging), microservices, and distributed system design. Strong understanding of schema-driven design , using tools such as JSON Schema, OpenAPI, or AsyncAPI. Solid understanding of cloud security, identity and access management, and operational best practices. Experience working with Infrastructure-as-Code (Terraform, CloudFormation). ...

performance, reliability, and maintainability Build and support Java-based backend services for enterprise-scale applications Design and implement RESTful APIs , including documentation using OpenAPI Specification (OAS)/YAML Apply Test-Driven Development (TDD) principles across frontend and backend components Write and maintain unit tests to ensure high levels … development Hands-on experience with TDD and automated testing practices Solid experience with GitLab , including CI/CD pipelines Experience producing and maintaining OpenAPI (OAS)/YAML specifications Strong understanding of unit testing frameworks and best practices Proven experience working in Agile/Scrum delivery environments ...

decisioning components, and integration workflows. Conduct JSON schema validation, payload structure checks, and API contract verification. Review and validate API documentation using Swagger/OpenAPI specifications. Develop Python scripts for simulation, automation, and data validation. Prepare and maintain test plans, test cases, and use cases. Validate decision strategy outputs … Agile ceremonies and support performance/monitoring activities where required. Core Skills Testing: Manual, REST API, Automation Technologies: JSON, JSON Schema, Swagger/OpenAPI Tools: Python, Karate, Excel, LoadRunner, Insomnia/Bruno CI/CD: GitLab, Jenkins Monitoring: Kibana, AppDynamics Concepts: SDLC, TDD, OAuth, Authentication/Authorization, Tokenization/ ...

consume RESTful APIs, ensuring robust and secure integrations Apply Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) approaches where applicable Produce and maintain OpenAPI specifications using OAS/YAML Write comprehensive unit tests to ensure code quality and reliability Contribute to automated CI/CD pipelines using GitLab … years' experience with Java Strong, demonstrable experience with TDD (and BDD, where applicable) Proven experience designing and building RESTful APIs Hands-on experience with OpenAPI Specification (OAS)/YAML Solid understanding of unit testing frameworks Experience using GitLab for version control and CI/CD pipelines Strong understanding ...