1 to 25 of 60 OpenAPI Jobs in the UK

applications using React, TypeScript, reusable components, responsive layouts, and accessible interaction patterns.Develop and consume REST APIs using an API-first approach; maintain clear OpenAPI/Swagger contracts and error handling.Contribute to the design of modular, maintainable solutions using microservices and appropriate object-oriented and event-driven design patterns.Use Node.js ...

operating microservices, with an understanding of service boundaries, timeouts, retries, circuit breakers and eventual consistency. APIs and security : Experience designing REST APIs with OpenAPI documentation, OAuth 2.0 or OpenID Connect, and token-based access control. Messaging : Practical experience with Apache Kafka or a comparable messaging platform, including consumer groups ...

/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform ...

/.NET 8 | ASP.NET Core | REST APIs | SQL Server | Entity Framework | Azure | Azure DevOps | Git | Docker | Kubernetes | Kafka | Redis | JSON/XML | Swagger/OpenAPI Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ...

/.NET 8 | ASP.NET Core | REST APIs | SQL Server | Entity Framework | Azure | Azure DevOps | Git | Docker | Kubernetes | Kafka | Redis | JSON/XML | Swagger/OpenAPI Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ...

Experience with Java and related frameworks (SpringBoot, Eclipse RCP, OData, Hibernate, JPA, REST, etc.) Backend development including REST APIs with Spring Boot, Swagger/OpenAPI specifications, Spring Security, OAuth2/OIDC, JWT. Git-based workflows and Gitlab CI/CD pipelines. Experience working in an Agile development environment (Scrum ...

Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT Messaging ...

Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT Messaging ...

include: Strong C# and modern .NET development, including ASP.NET Core Web APIs and backend services. Azure development, including Azure Functions. REST APIs, HTTP, JSON, OpenAPI/Swagger and webhooks. Integration patterns covering authentication, pagination, rate limits, retries and exception handling. Microsoft Entra ID, OAuth 2.0, application permissions and secure ...

architecture, and microservices patterns. You think in terms of domain boundaries, aggregates, and service responsibilities. Experience designing and maintaining RESTful APIs commercially. Comfort with OpenAPI/Swagger, OAuth2, and versioning strategies. Ability to design and maintain relational databases (MySQL, PostgreSQL), including query performance, indexing, and data modelling. You enjoy ...

architecture (EDA), and microservices architecture. Familiarity with Java (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2. Familiarity and working experience with relational databases (e.g.MySQL, PostgreSQL) and non-relational databases (e.g., MongoDB, Cassandra). 6+ years in customer-facing ...

architecture (EDA), and microservices architecture. Familiarity with Java (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2. Familiarity and working experience with relational databases (e.g.MySQL, PostgreSQL) and non-relational databases (e.g., MongoDB, Cassandra). 6+ years in customer-facing ...

knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-haves: Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-haves: Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

query tuning, indexing and execution plans High-traffic E-commerce or transactional systems Cloud experience, ideally AWS Strong RESTful API design: versioning, idempotency, caching, OpenAPI/Swagger Production ownership: monitoring and profiling .NET apps (eg Datadog, New Relic, CloudWatch) Daily use of AI coding tools (Claude Code, Copilot, Cursor ...

technical direction within your team Required experience Core Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or Java REST API development/OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Python APIs and services (e.g., FastAPI), incorporating async execution, background jobs and containerized deploymentsIntegrate enterprise systems and tools using protocols such as MCP, A2A, OpenAPI, REST and gRPC, ensuring graceful degradation and retriesApply enterprise security and governance practices including RBAC, prompt safety checks, traceability and secrets managementImplement evaluation pipelines ...

communication skills Agile Scrum experience Quality-driven mindset Desirable Skills Playwright, JUnit, Selenium, Cucumber/Gherkin, OWASP ZAP, SonarQube, Kubernetes, Docker, AWS, Microservices, OpenAPI, WCAG and DevSecOps practices. What We're Looking For A proactive Quality Engineer who thrives in Defence environments, enjoys solving complex technical challenges ...

communication skills Agile Scrum experience Quality-driven mindset Desirable Skills Playwright, JUnit, Selenium, Cucumber/Gherkin, OWASP ZAP, SonarQube, Kubernetes, Docker, AWS, Microservices, OpenAPI, WCAG and DevSecOps practices. What We're Looking For A proactive Quality Engineer who thrives in Defence environments, enjoys solving complex technical challenges ...

experience, including: C# and modern .NET , including ASP.NET Core Object-oriented development, SOLID principles and dependency injection Designing, building and consuming REST APIs , including OpenAPI Microsoft Azure , particularly PaaS and serverless services Relational databases, SQL and data modelling Git, pull requests and automated CI/CD pipelines , ideally using ...

your peers on technical direction within your teamRequired experienceCore Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or JavaREST API development/OpenAPI/SwaggerCloud services (AWS or Azure)Containerisation & Orchestration (Docker, Kubernetes, OpenShift)Infrastructure as Code (Terraform, Ansible)Relational Databases (e.g. PostgreSQL)Elasticsearch/OpensearchUnit testing ...

migration from legacy sources of truth. API design expertise: Deep experience designing RESTful APIs, including resource modeling, versioning strategies, pagination, error handling, and OpenAPI/Swagger documentation. Schema and data modeling: proven experience designing relational database schemas for complex, evolving domains — including normalization, indexing, and schema migration strategies. Infrastructure ...

driven architecture (EDA), and microservices architecture. Familiarity withJava (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2. Familiarity and working experience with relational databases (e.g.MySQL, PostgreSQL) and non-relational databases (e.g., MongoDB, Cassandra). 6+ years in customer-facing ...

highly regulated environments Additional Experience of Interest Experience with any of the following would be beneficial: Terraform AWS CloudFormation Docker Gatsby REST APIs/OpenAPI GitLab Infrastructure as Code DevOps-focused development practices Scaling and improving existing software products Defence, national security or central government environments Working within blended ...

highly regulated environments Additional Experience of Interest Experience with any of the following would be beneficial: Terraform AWS CloudFormation Docker Gatsby REST APIs/OpenAPI GitLab Infrastructure as Code DevOps-focused development practices Scaling and improving existing software products Defence, national security or central government environments Working within blended ...