51 to 75 of 180 OpenAPI Jobs in England

Boot services in Kotlin, with a focus on clean architecture and resilience. Model data in PostgreSQL , own schema migrations with Liquibase , and access data through jOOQ . Treat the OpenAPI contract as the single source of truth. Co-author, review and enforce it across teams, automate server/client generation. Practice shift-left testing : write unit and integration tests … and fluency with jOOQ or similar tools for type-safe data access. Comfortable writing tests (JUnit, Testcontainers, MockMVC) and using code-coverage metrics to guide improvements. Hands-on with OpenAPI/Protobuf and code-generation workflows; you value strongly typed contracts between services and UI. Familiar with GitHub and GitHub Actions (or similar) for CI/CD and environment More ❯

Strong experience in designing and implementing microservices Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc. Proficient in RESTful API design , JSON, and OpenAPI/Swagger specifications Experience with asynchronous programming in Python (e.g., asyncio, aiohttp, FastAPI) Knowledge of CI/CD tools (e.g., GitHub Actions, Jenkins, CodePipeline) Familiarity with Docker and containerized More ❯

Strong experience in designing and implementing microservices Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc. Proficient in RESTful API design , JSON, and OpenAPI/Swagger specifications Experience with asynchronous programming in Python (e.g., asyncio, aiohttp, FastAPI) Knowledge of CI/CD tools (e.g., GitHub Actions, Jenkins, CodePipeline) Familiarity with Docker and containerized More ❯

Strong experience in designing and implementing microservices Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc. Proficient in RESTful API design , JSON, and OpenAPI/Swagger specifications Experience with asynchronous programming in Python (e.g., asyncio, aiohttp, FastAPI) Knowledge of CI/CD tools (e.g., GitHub Actions, Jenkins, CodePipeline) Familiarity with Docker and containerized More ❯

Strong experience in designing and implementing microservices Hands-on experience with AWS Serverless services: Lambda, API Gateway, S3, DynamoDB, SQS, SNS, etc. Proficient in RESTful API design , JSON, and OpenAPI/Swagger specifications Experience with asynchronous programming in Python (e.g., asyncio, aiohttp, FastAPI) Knowledge of CI/CD tools (e.g., GitHub Actions, Jenkins, CodePipeline) Familiarity with Docker and containerized More ❯

code to squash bugs. Our tech stack includes services built using Go, Redis, Postgres, and Cloudflare products (e.g. Workers). We are looking for proficiency in RESTful API design, OpenAPI, Terraform, relational databases (SQL), and modern containerized deployment practices. Examples Of Desirable Skills, Knowledge And Experience 7-10 years of professional experience building and managing software applications at large … scale. Has managed or maintained Terraform providers (not just used them). Strong OpenAPI experience. Strong API design principles. Deep knowledge of Go with strong computer science fundamentals is a must. Experience in designing and architecting large-scale distributed systems. Experience designing, implementing, and documenting customer-facing APIs. Experience debugging, optimizing and identifying possible failures in a large-scale More ❯

CD Solid testing experience (Jest, Mocha, etc.) Nice to have : Fintech, payment systems or secure coding experience Redis, WebSockets, or real-time system knowledge Familiarity with monorepos, Swagger/OpenAPI, and compliance (PCI, GDPR) Security-First Mindset Our platform handles sensitive financial datasecurity and compliance are central to everything we build. What You'll Work On 15+ microservices (Node.js More ❯

AWS Lambda and related AWS services (e.g., S3, DynamoDB, API Gateway, SNS). Understanding of event-driven architectures and microservices. Experience with API frameworks and tools like Swagger/OpenAPI, Postman, and API Gateway. Able to identify packages from import statements. Able to read library API documentation and use them effectively. Snowflake is growing fast, and we're scaling More ❯

MVC, Web API) Able to deliver low-latency web services and APIs with a solid understanding of the REST architectural style Knowledge of designing, building, and consuming APIs with OpenAPI (Swagger) Very proficient in database development on MS SQL Server with extensive knowledge of T-SQL and relational data modelling Experience building responsive layouts and mobile websites with cross More ❯

Made Tech is on a mission to use technology to improve society - for everyone. We help public sector organisations transform, deliver and manage world-class digital products and cloud services. We work with the UK government to modernise legacy technology More ❯

hackajob is collaborating with Made Tech to connect them with exceptional tech professionals for this role. Made Tech is on a mission to use technology to improve society - for everyone. We help public sector organisations transform, deliver and manage world More ❯

and specifications Your Skills And Experience Experience with all Agile software development frameworks and processes, and software design Experience with Java, Python, Spring-boot, PostgreSQL and Big Query concepts, OpenAPI, Google Cloud Platform (or any other Cloud Platform), SQL Understanding of design concepts and should possess strong knowledge on Domain Driven Design and Hexagonal Architecture Experience in messaging technologies. More ❯

and implementation of enterprise integration, orchestration, and event-driven architecture solutions within cloud infrastructure. This role demands expertise in cloud architecture (particularly AWS), API design and development, AsyncAPI and OpenAPI specifications, and experience with event-driven architectures and frameworks. You will be responsible for building scalable, efficient solutions that enable seamless communication across systems, automate workflows, and integrate event … and distributed systems. API design and development: Lead the design, implementation, and management of robust APIs to support various business and operational needs, ensuring consistency and scalability. AsyncAPI and OpenAPI: Design and develop APIs following AsyncAPI and OpenAPI specifications to ensure seamless communication and integration between services. Collaborate with DevOps teams to define project requirements, supporting continuous integration More ❯

protocols, network architecture, queues, scheduling, microservices architecture, and understanding of CAP theorem Experience with SQL, NoSQL, and Graph databases Good understanding of API architecture following best practices such as OpenAPI/Swagger Proficiency in creating tests (unit, integration, etc.) Good knowledge of Linux Strong communication skills, both verbal and written Additional/Bonus qualifications Experience with AWS or other More ❯

Job Intro We are seeking a proactive and highly skilled engineer to join our team. As a senior engineer, you will be involved in designing, coding, testing, and delivering new products and services, working closely with the wider TWIN technical More ❯

applications. Knowledge of the financial services industry and IT systems. Experience with cloud-native technologies. Professional experience with API management tools like APIGEE, Kong, or Mulesoft. Strong understanding of OpenAPI Specification (OAS) for RESTful APIs. Preferred qualifications, capabilities, and skills Experience with AWS services (ECS, EKS, MKS). Familiarity with Kong API Gateway. Experience with performance and soak testing. More ❯

backend technology (.NET, Java Spring Boot, Node.js, etc.). Implement token-based authentication, authorization, and enforce API gateway policies. Establish best practices for API lifecycle management using Swagger/OpenAPI specifications. Design and manage sandbox environments with mock/test data for parallel system testing. Solve integration edge cases and performance bottlenecks proactively. Implement and promote 15-factor app … expertise in MuleSoft Anypoint Platform (Design Center, Runtime Manager, API Manager). Hands-on experience with API Gateway , OAuth2.0 , JWT , Client Credentials Flow , etc. Deep knowledge of RESTful APIs , OpenAPI/Swagger , and API mocking tools. Experience integrating APIs from multiple backends (.NET Core, Java Spring Boot, NodeJS, Python, etc.). Proficient in enterprise integration patterns , error handling, logging More ❯

as code Security: CSPs, secure cookies, XSS/CSRF mitigation, OAuth2, SSO, SAML, encryption SEO & Performance: Core Web Vitals, metadata structuring, sitemap configuration, crawl budget API Design: RESTful APIs, OpenAPI/Swagger, GraphQL CMS: Experience with various CMS platforms; headless CMS integration (e.g., Contentful, Sanity, Strapi) Testing: Automated testing (Jest, Mocha, Selenium), TDD, BDD, integration and load testing Observability More ❯

the HR Director Offer and Hiring The total process should take around 2 weeks. Technical Requirements Frontend: Vue JS 3, ReactJS, TypeScript Framework: Symfony, Doctrine ORM API: RESTful API, OpenAPI 3.1, Redocly Package Management: Composer, NPM, Yarn Testing: PHPUnit, Vitest, Jest, Cypress, Testing Library Build: Vite, Rollup Version Control: Git JS: ES6/7 Infrastructure: Docker, Terraform, GitHub, AWS More ❯

of OOP principles and design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services — we still support some older systems, so comfort working with a mix of modern and legacy tech is key Data More ❯

of OOP principles and design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services — we still support some older systems, so comfort working with a mix of modern and legacy tech is key Data More ❯

least 3 years of React experience (v18+) Experience with build pipelines, CI, Docker Proficiency in Git Strong HTML and CSS skills Excellent communication skills Knowledge of Sidekiq, RSwag/OpenAPI, Tailwind, GraphQL, React Hook Form, React Query, Terraform WHAT WE OFFER: Opportunity to work with various technologies Encouragement to suggest new ideas and experiments Deliver value quickly, within days More ❯

of OOP principles and design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services — we still support some older systems, so comfort working with a mix of modern and legacy tech is key Data More ❯

of OOP principles and design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services — we still support some older systems, so comfort working with a mix of modern and legacy tech is key Data More ❯

of OOP principles and design patterns API Development Building and maintaining RESTful APIs Solid understanding of HTTP protocols, status codes, headers, etc. API documentation using tools like Swagger/OpenAPI Legacy Systems Exposure to or experience with WCF services — we still support some older systems, so comfort working with a mix of modern and legacy tech is key Data More ❯