1 to 25 of 26 OpenAPI Jobs in London

Object-oriented programming forms the bulk of our codebase, currently in Java (11+), and ideally Spring Boot. You will be working with SQL and large SQL databases, Docker, Kubernetes, OpenAPI specifications, and distributed system observability tooling (e.g., Datadog APM). Infrastructure automation is primarily owned by the infrastructure team, but you will be a consumer of their work; familiarity More ❯

/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate More ❯

/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate More ❯

/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate More ❯

/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate More ❯

a consultancy or industry setting Experience with multiple programming languages, including Python, Java, C++, Rust, or Go Experience with associated software development frameworks and tools such as pytest and OpenAPI Experience working in Unix/Linux environments Knowledge of database systems and proficiency in database query languages/tools Familiarity with software development methodologies, such as Agile or Scrum. More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Essential Requirements API Lifecycle More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Essential Requirements API Lifecycle More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Essential Requirements API Lifecycle More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Essential Requirements API Lifecycle More ❯

legacy systems and migrating to cloud-native platforms Solid grasp of AWS (API Gateway, Lambda, S3, VPC) Familiarity with Java, DB2, relational databases, and network concepts Desirable experience includes: OpenAPI schemas, Kubernetes, Spring Boot, JBOSS/EJB, Postgres, Python Prior work within UK government departments Ability to mentor and lead technical teams This is a key role in a More ❯

Experience with monitoring and observability tools like Azure Monitor, Application Insights, and Log Analytics. Awareness of data security, GDPR, and compliance in educational or public sector environments. Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices. Previous experience working with third-party suppliers in multi-vendor delivery environments. 12-month contract-to start ASAP- Hybrid More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good More ❯

Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good More ❯

distributed systems and cloud platforms. Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API Management). Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. Solid background in non-functional testing, including performance, security, and resilience testing. Capability in DevOps testing, with the ability to embed test automation into More ❯

systems and cloud platforms. Hands-on knowledge of Azure integration services such as Logic Apps, Azure Functions, Service Bus, and API Management. Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. Background in non-functional testing, including performance, security, and resilience testing. Ability to embed test automation into CI/CD pipelines using Azure DevOps More ❯

payments, lending, treasury, or risk. Technical expertise in: SQL, data analysis, and data visualization tools (Power BI/Tableau/Qlik) APIs (knowledge of JSON, RESTful services, Swagger/OpenAPI specs) Excel, ETL tools, and basic scripting (Python is a plus) Experience working in Agile/Scrum environments. Strong documentation and communication skills. Ability to collaborate with cross-functional More ❯

through technical guidance and troubleshooting, working closely with engineering and client success teams. Must Have Experience in software engineering and solution architecture throughout the delivery lifecycle Experience with APIs, OpenAPI, and sequence diagrams Client-facing experience and stakeholder relationship skills Strong communication skills for technical and non-technical audiences Nice to Have Experience in banking, payments, or related fields More ❯

and deployment. Producing high-quality, user-focused software solutions. Contributing to technical architecture decision making. Core skills Languages: Node.js, TypeScript Front-end: Next.js and Vercel, Tailwind CSS Back-end: OpenAPI Infrastructure: AWS (ECR, ECS, Fargate, Elasticache/Redis, SQS, SES, Cognito, RDS, Bedrock, KMS, S3) Databases: MongoDB and PostgreSQL This is a hybrid role - 4 days per week in More ❯

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 ❯

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 ❯

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 ❯

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 ❯