1 to 25 of 58 OpenAPI Jobs in the UK

High-level proficiency Familiarity with relational SQL databases, ideally PostgreSQL Docker TDD – Junit/Mockito or similar testing libraries MUST have transferrable DV clearance Desirable Skills: API Spec (Swagger OpenAPI) Gradle Liquibase Kafka React Typescript Previous government project experience with HMRC, HMPO or Home Office More ❯

track your work. High competency in written and oral English language. Desirable Experience with issue and fault management systems. Knowledge and experience of how to integrate with and build OpenAPI/gRPC based systems. Experience building sophisticated plots/charting (Plotly, Matplotlib) and reporting systems (PowerBI). Experience of failure prediction/MTBF analysis. Experience with Manufacturing Resource Planning More ❯

track your work. High competency in written and oral English language. Desirable Experience with issue and fault management systems. Knowledge and experience of how to integrate with and build OpenAPI/gRPC based systems. Experience building sophisticated plots/charting (Plotly, Matplotlib) and reporting systems (PowerBI). Experience of failure prediction/MTBF analysis. Experience with Manufacturing Resource Planning More ❯

Cloud technologies. Containerisation (Docker/Kubernetes) and microservice architectures. Front-end frameworks (WPF and React). Database technologies. Test automation tools such as Playwright. Common API technologies such as OpenAPI, REST/HTTP, WebSocket, SignalR. GitHub and CoPilot. CI/CD. Basic Requirements What You Bring: Strong skills in at least one object-oriented language (C# or C++ preferred More ❯

code quality and maintainability. Strong 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 and ML tools (e.g., NumPy, pandas More ❯

code quality and maintainability. Strong 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 and ML tools (e.g., NumPy, pandas More ❯

code quality and maintainability. Strong 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 and ML tools (e.g., NumPy, pandas More ❯

code quality and maintainability. Strong 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 and ML tools (e.g., NumPy, pandas More ❯

code quality and maintainability. Strong 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 and ML tools (e.g., NumPy, pandas More ❯

distributed systems, and networking fundamentals * Ideally Hands-on with AWS (IAM, ECS/EKS, S3, RDS/DynamoDB, networking) and Kubernetes * Experience designing REST/gRPC APIs; protobuf/OpenAPI familiarity * Proficiency with SQL (Postgres/MySQL) and a NoSQL/Key-Value store (e.g., DynamoDB/Redis) * CI/CD (GitHub Actions/GitLab/CircleCI), automated testing More ❯

containerized deployments Required Technical Skills • 5+ years of experience with .NET development (C#, ASP.NET Core) • Strong experience with Entity Framework Core and PostgreSQL • Proficiency in RESTful API design and OpenAPI/Swagger documentation • Experience with authentication systems (OAuth2, JWT, Azure AD) • Knowledge of containerization (Docker) and Kubernetes/OpenShift • Experience with background job processing and scheduled tasks • Understanding of More ❯

environments Proven experience building complex SPAs with modern routing and state management Deep understanding of browser APIs, performance optimization, and responsive design Familiarity with Vite, pnpm, Git workflows, and OpenAPI integration via tools like Orval Experience with WebSockets, real-time data handling, and secure API communication Strong communication skills and ability to mentor and influence frontend standards This role More ❯

environments Proven experience building complex SPAs with modern routing and state management Deep understanding of browser APIs, performance optimization, and responsive design Familiarity with Vite, pnpm, Git workflows, and OpenAPI integration via tools like Orval Experience with WebSockets, real-time data handling, and secure API communication Strong communication skills and ability to mentor and influence frontend standards This role More ❯

environments Proven experience building complex SPAs with modern routing and state management Deep understanding of browser APIs, performance optimization, and responsive design Familiarity with Vite, pnpm, Git workflows, and OpenAPI integration via tools like Orval Experience with WebSockets, real-time data handling, and secure API communication Strong communication skills and ability to mentor and influence frontend standards This role More ❯

Great In this role, you’ll get to: Design scalable backend architecture using FastAPI and Python for high-performance workloads Build and maintain robust APIs following RESTful conventions and OpenAPI/Swagger standards Own the performance of PostgreSQL databases , including partitioning, indexing, and horizontal scaling strategies Secure and optimise infrastructure using Docker, AWS, and infrastructure-as-code (IaC) tools More ❯

Great In this role, you’ll get to: Design scalable backend architecture using FastAPI and Python for high-performance workloads Build and maintain robust APIs following RESTful conventions and OpenAPI/Swagger standards Own the performance of PostgreSQL databases , including partitioning, indexing, and horizontal scaling strategies Secure and optimise infrastructure using Docker, AWS, and infrastructure-as-code (IaC) tools More ❯

Experienced developer with strong Microsoft Azure skills, including Storage, Networking, App Services, Key Vault, and Scripting with Azure CLI. Proficient in C#, SQL, PowerShell, and familiar with APIs like OpenAPI, OAuth, and GraphQL. Strong problem-solving skills, proactive, and committed to building reliable, secure, and maintainable systems. Good understanding of security, compliance, and agile delivery practices. Passionate about learning More ❯

Building front-end applications with Angular and developing RESTful APIs/Web APIs Implementing Behaviour-Driven Development (BDD) using SpecFlow API testing and validation with Postman Implementing and maintaining OpenAPI specifications Database experience: MS SQL Server (SQL) MongoDB (NoSQL) Containerization and deployment using Docker Location: BuckinghamshireSalary: £65,000 - £75,000C# - .Net - Angular - CI/CD - AWS - Postman - Docker - Rest More ❯

Infrastructure-as-Code (Terraform) and CI/CD systems. Deep knowledge of containers, orchestration (Kubernetes), and service-mesh patterns (Istio). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash, PowerShell, or Python. Depth in either Azure or GCP, with readiness to cross-train: Azure: ARM/Bicep More ❯

Infrastructure-as-Code (Terraform) and CI/CD systems. Deep knowledge of containers, orchestration (Kubernetes), and service-mesh patterns (Istio). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash, PowerShell, or Python. Depth in either Azure or GCP, with readiness to cross-train: Azure: ARM/Bicep More ❯

Infrastructure-as-Code (Terraform) and CI/CD systems. Deep knowledge of containers, orchestration (Kubernetes), and service-mesh patterns (Istio). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash, PowerShell, or Python. Depth in either Azure or GCP, with readiness to cross-train: Azure: ARM/Bicep More ❯

Infrastructure-as-Code (Terraform) and CI/CD systems. Deep knowledge of containers, orchestration (Kubernetes), and service-mesh patterns (Istio). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash, PowerShell, or Python. Depth in either Azure or GCP, with readiness to cross-train: Azure: ARM/Bicep More ❯

Infrastructure-as-Code (Terraform) and CI/CD systems. Deep knowledge of containers, orchestration (Kubernetes), and service-mesh patterns (Istio). Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). Scripting proficiency in Bash, PowerShell, or Python. Depth in either Azure or GCP, with readiness to cross-train: Azure: ARM/Bicep More ❯

of a Technical Lead. More senior grades - Proven leadership and coaching skills. Required Technical Skills: Java, Spring Boot, Junit Optional Technical Skills: JPA, Kibana, Maven, Mockito, AWS, GitLab, Helm, OpenAPI, SQL, Shell Scripting Working Environment: Hybrid working model with team days in the office as appropriate. Collaborative environment with opportunities to influence and improve processes. Agile principles with a More ❯

in: .NET (C#) Unit & integration testing CI/CD pipeline development (GitHub or similar) AWS services (IAM, Lambda, API Gateway) Angular, REST APIs, Web API development SpecFlow (BDD), Postman, OpenAPI MS SQL Server (SQL) & MongoDB (NoSQL) Docker Experience with CQRS and Event Bus architecture is highly desirable Responsibilities for Software Engineering Team Leader Lead, mentor, and support a team More ❯