19 of 19 OpenAPI Jobs in the UK excluding London

Spring Boot Hands-on experience with Kafka and asynchronous messaging Experience with API Gateway solutions (Apigee preferred) Strong knowledge of REST APIs, JSON, OpenAPI/Swagger Experience with SQL/NoSQL databases (Oracle, PostgreSQL, MongoDB) Frontend experience with Angular or React Understanding of payment systems and financial services architecture ...

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 ...

modern frontend integration Strong database design and optimisation skills (T-SQL and analytical data stores) Experience with API security and documentation (e.g. OAuth, OpenAPI/Swagger) Comfortable working in Agile teams and collaborative engineering environments Desirable Experience Terraform, Docker, and exposure to containerised environments Event-driven architectures, messaging ...

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 ...

Azure App Service, Container Services, and CI/CD pipelines Solid understanding of REST APIs, JSON, and microservice architecture Familiarity with Docker, Swagger/OpenAPI, and modern development practices Excellent communication and stakeholder management skills You'll join an environment that values autonomy, innovation and technical excellence, with ...

secure authentication using OAuth, JWT and modern security patterns Exposing product capabilities for AI services and third-party integrations Producing clear API documentation using OpenAPI/Swagger Improving reliability with logging, monitoring and strong error handling Supporting CI/CD pipelines for automated testing and deployment Working closely with ...

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 ...

strategies across on-prem and cloud to optimise performance, resilience, cost, and security. API & Integration Architecture Lead the design of secure, scalable RESTful APIs (OpenAPI/Swagger). Define standards for API gateways, authentication (OAuth2, mTLS), traffic management, rate limiting, and observability. Design integration patterns connecting internal systems with ...

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). ...

Applying your industry know-how within financial data to ensure continual product development Tech youll work with: Functional programming i.e. Ruby, Python, Elixir PostgreSQL OpenAPI integrations Various data streaming and processing tools Whats in it for you: Fully remote working Flexible hours Trust and ownership Chance to build ...

operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define API specifications using OpenAPI and implement modern integration patterns Drive CI/CD automation, monitoring, and operational excellence Mentor developers and champion best practices across the engineering team … that delight users What You Bring Essential: 10+ years software development, including 3+ years hands-on Azure Deep expertise in Azure API Management Strong OpenAPI, RESTful API design, and security protocols (OAuth 2.0, JWT, TLS) Proficiency in Node.js/Java/C# and modern integration patterns Experience with ...

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 ...

maintain RESTful APIs using Java Apply TDD and BDD practices to ensure high-quality, well-tested code Produce and maintain API specifications using OpenAPI (OAS)/YAML Collaborate with cross-functional Agile teams including QA, DevOps, and Product Contribute to CI/CD pipelines using GitLab Ensure code quality … with TDD (and ideally BDD ) - please highlight this clearly on your CV if applicable Proven experience designing and building RESTful APIs Experience working with OpenAPI Specification (OAS)/YAML Solid version control experience using GitLab Hands-on exposure to CI/CD pipelines Nice-to-Have/Desirable Skills ...

Technology is at the heart of this fast-growing digital bank — powering the systems that make business banking simpler, faster and smarter. This role is about setting the technical direction across payments, shaping scalable systems ...

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/ ...

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 ...

involved in: Designing and delivering scalable, secure solution architectures aligned to enterprise standards* Leading API strategy and design, including RESTful services, OpenAPI standards, and integration patterns* Defining workload placement strategies across cloud and on-prem environments* Advising senior stakeholders and influencing technology strategy at VP level* Leading multi-year … ideally bring: Proven experience as a Lead or Senior Solution Architect within banking or financial services* Strong background designing and securing RESTful APIs (OpenAPI/Swagger)* Ability to navigate legacy systems alongside modern cloud-native architectures* Strong stakeholder management skills, with the ability to translate complex technical decisions into ...