20 of 20 Permanent OpenAPI Jobs in England

practices Knowledge of authentication and authorisation protocols including OAuth2, JWT, and API security best practice Proficiency with API documentation tools such as Swagger/OpenAPI or Postman Experience with agile tooling such as Jira, Azure DevOps, or Linear Strong technical writing: PRDs, technical specifications, and API documentation Comfortable defining ...

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/ ...

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 ...

within your team Required Skills and Experience Full-stack experience across a selection of 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 ...

within your team Required Skills and Experience Full-stack experience across a selection of 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 ...

peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search Technologies Relational Databases ...

within your team Required Skills and Experience Full-stack experience across a selection of 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 ...

more backend programming languages such as Rust, Python, or Go. A solid understanding of software engineering principles, including MVVM, UDF, RESTful APIs, OpenAPI, and common data structures. Experience using Docker for containerisation. Knowledge of DevOps practices, including CI/CD pipelines and automated testing. Strong communication and teamwork skills. ...

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 ...

environment). Software design principles and clean coding practices Performance, scalability, resilience, maintainability, and security considerations API-based architectures and integration layers (e.g., REST, OpenAPI, AsyncAPI) Distributed systems and complex legacy environments Cloud-native application development using Microsoft Azure and/or AWS DevOps practices and toolchains, including ...

performance, reliability, and maintainability. Python Back End development, primarily using FastAPI and modern API patterns. Strong understanding of RESTful API design, schema validation, and OpenAPI/Swagger. Experience working with messaging and eventing platforms such as Kafka, RabbitMQ, Azure Service Bus, MQTT, or similar. Cloud-native development experience ...

Payment Domain Software design principles and clean coding practices Performance, scalability, resilience, maintainability, and security considerations API-based architectures and integration layers (eg, REST, OpenAPI, AsyncAPI) Distributed systems and complex Legacy environments Cloud-native application development using Microsoft Azure and/or AWS DevOps practices and toolchains, including ...

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. ...

Observability tooling (e.g. OpenSearch, Grafana, Prometheus, Dynatrace) Technical leadership Agile workingPreferred: Java 17+/Spring Boot 3+ Microservices Oauth/OpenId Maven Protobuf/OpenAPI gRPC Junit xkybehq automated testing Git Workflows Nice to Have: React React Router/Remix Component Integration Testing RabbitMQ/SQS/ ...

Looking For Kotlin, or strong modern Java 17+ with a willingness to learn; reactive streams experience (Flux, Mono, coroutines, backpressure); schema/type thinking (OpenAPI, Avro, Protobuf, or similar); event-driven architecture awareness (Kafka or RabbitMQ a plus); strong testing habits; clean, pragmatic code; curiosity and adaptability; full-stack ...

launching platform or API-first products. Strong understanding of APIs, API lifecycle, and API testing methodologies. Ability to read and understand technical documentation including OpenAPI/Swagger specifications. Experience working closely with engineering teams in agile product environments. Strong product discovery, market research, and competitive analysis capabilities. Excellent stakeholder ...

have strong communication skills and are comfortable engaging with a wide range of stakeholders Languages/Specs: Java/Groovy, SQL, Swagger/OpenAPI Interfaces: Web, API, Messages/Events, DB Dev Lifecyle: Maven, GIT/BitBucket, Jira Cloud, Zephyr, ReadyAPI, jMeter Testing Types: API, Web, Security/ ...

We are recruiting for a Software Engineer Consultant on behalf of one of the UK's fastest-growing technology consultancies, ranked in the Financial Times FT1000 Europe's Fastest-Growing Companies list in both 2025 ...

Position: Senior .Net Engineer (Backend) Position Type: Full-time, £45-£60k Location: Hybrid, based out of our Manchester office. Reports To: VP Data Services General Description: PCA Global Ventures, LLC, the global leader in specialized ...

Software Engineer - SC - Cheltenham(Hybrid) - £75,000 Are you a Software Engineer who enjoys solving complex technical challenges? Do you want to work on cutting-edge technology that supports critical national missions in a highly ...