1 to 25 of 64 Permanent OpenAPI Jobs in London

event‐driven architectures, or real‐time data patterns. Familiarity with modern authentication approaches such as OAuth2, OpenID Connect, JWT, and AWS Cognito. Experience with OpenAPI/Swagger specifications and API lifecycle management. Experience with CI/CD tools such as GitHub Actions, Azure DevOps, Jenkins, or AWS CodePipeline. #J ...

support these applications, such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM, to name but a few API specifications, conforming to the OpenAPI (Swagger) standard, provide a clean boundary both externally between our customers and our product, and internally between our microservices SQL, and large SQL databases ...

Programming (OOP).Advanced knowledge of Java 17+ features and practical experience with Spring Boot.Skilled in developing RESTful services, including REST design principles, Swagger/OpenAPI, and Spring REST MVC. Proficient in building and delivering enterprise-grade Java applications.Hands-on experience with data structures, algorithms, concurrency, and multi-threading.Database ManagementStrong ...

.* Advanced knowledge of Java 17+ features and practical experience with Spring Boot.* Skilled in developing RESTful services, including REST design principles, Swagger/OpenAPI, and Spring REST MVC.* Proficient in building and delivering enterprise-grade Java applications.* Hands-on experience with data structures, algorithms, concurrency, and multi-threading.Database ...

pragmatic technical designs. Required skills Skill Area Technologies/Capabilities Engineering leadership Java, Spring Boot, .NET or Node.js, microservices, REST APIs, event‐driven architectures, OpenAPI/Swagger, integration patterns Front‐end engineering Data & integration SQL, NoSQL, data integration, streaming/event platforms such as Kafka, API management, data quality ...

Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker, Kubernetes (AKS) Azure DevOps, Git repositories, CI/ ...

factor principles. Cloud‐related tools and services such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM. API specifications conforming to the OpenAPI (Swagger) standard. Large SQL databases (e.g., MySQL) for persistence; familiarity with SQL and complex queries. Infrastructure automation via Terraform and Docker, with knowledge of AWS. ...

SQLAlchemy, Pydantic, and async Python is highly valued.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 (PostgreSQL preferred) for complex, evolving domains — including normalization, indexing, and schema migration ...

strategies. Experience with Unit Testing tools such as Junit 5. Experience in using coding assistant tools, Gen AI and agentic AI skills Experience with OpenAPI Specification (OAS). Exposure to authentication frameworks like OIDC (Open Id Connect) and Authorisation frameworks OAuth2. Strong understanding of application security principles and best ...

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 ...

through to component and sequence-level detail — that can be directly implemented by engineering teams Design and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team delivery Architect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator ...

diagrams through to component and sequence-level detail — that can be directly implemented by engineering teamsDesign and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team deliveryArchitect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator platformsProvide ...

through to component and sequence-level detail — that can be directly implemented by engineering teams* Design and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team delivery* Architect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator ...

team Desired Skills and Experience: Core Software Engineering across a variety of languages, e.g. JavaScript frameworks (React, NextJS), TypeScript, Python, 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 ...

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 ...

criteria ahead of releases. Drive continual improvement in release processes, collaborating with agile delivery teams and leveraging knowledge of tools like Swagger/OpenAPI, Gradle, Liquibase, Kafka, React and Typescript. Nice to have: Immediate availability What you need to do now If you're interested in this role, click ...

DevOps workflows and tools (Terraform, Docker, Kubernetes, etc.).Experience working with data exports, reporting systems, or data streaming.Experience improving developer experience around APIs (e.g. OpenAPI, Swagger, static site generators).Familiarity with authentication, API gateways, and rate limiting strategies.Experience in compliance standards for APIs and data handling.Experience with observability tools ...

/JS framework and the Screenplay pattern (any strong page-object/BDD automation background transfers) REST APIs — manual and automated testing, working from OpenAPI/Swagger contracts, and best practice in API testing Web application testing with Playwright Python — unit and integration testing with pytest, including async tests ...

. Experience with Kafka and event-driven architecture. Knowledge of BPM tools such as Camunda, jBPM, Activiti or Pega . Strong experience with APIs, OpenAPI, OIDC and OAuth 2.0. Experience with relational databases, Git and CI/CD tooling. Exposure to coding assistants, generative AI or agentic AI. Strong ...

hands-on experience with Kong API Gateway (Enterprise or Open Source). Extensive experience in API management and governance. Strong understanding of RESTful APIs, OpenAPI Specifications (Swagger), and API design best practices. Experience implementing OAuth2, OpenID Connect, JWT, MTLS, and API security controls. Experience with API lifecycle management ...

Provide deep technical expertise in distributed systems, data architecture, and scalable platform design. Design, implement, and maintain Java-based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services. Work with modern data technologies including PostgreSQL, MongoDB, and Amazon Redshift. Deliver reliable, performant, and responsive user interfaces aligned … resilient systems. Hands-on experience with Kafka or similar event streaming technologies. Strong understanding of API design and service integration patterns, including REST, OpenAPI, GraphQL, and gRPC. Practical experience with relational and NoSQL data platforms, including PostgreSQL, MongoDB, and Redshift. Frontend development experience using Angular or React, with ...

challenging deadlines; credible, resilient, and comfortable challenging the status quo to drive the best integration outcomes. Technical: API Engineering (REST/OData), specification using OpenAPI/Swagger, Postman-based testing. SAP integration artefacts (IDoc types for vendor, PO, GR, invoice; BAPI/RFC; ALE; OData services). Coupa integration ...

backend development experience with Python with a track record of clean, maintainable, testable production code. Production API design & delivery (FastAPI preferred), including versioning, documentation (OpenAPI/Swagger), and observability. Cloud experience (AWS preferred) beyond core compute/storage/DB—e.g., eventing, queues, serverless, logging/monitoring, secrets. ...

APIs and services (e.g., FastAPI), incorporating async execution, background jobs and containerized deployments Integrate enterprise systems and tools using protocols such as MCP, A2A, OpenAPI, REST and gRPC, ensuring graceful degradation and retries Apply enterprise security and governance practices including RBAC, prompt safety checks, traceability and secrets management Implement ...

first mindset by designing, documenting, and ensuring the quality of robust, efficient HTTP/REST APIs for microservice communication (including using tools like OpenAPI/Swagger). Ensure System Health: Oversee and implement strategies for system scalability, resilience, and high availability, including ownership of monitoring, alerting, and performance optimization. ...