OpenAPI Jobs in England

26 to 50 of 180 OpenAPI Jobs in England

API Developer (SC Cleared)

London, England, United Kingdom
Amber Labs Limited
requires strong experience in API security, containerisation, and Agile methodologies. Roles And Responsibilities Design, develop, and maintain high-quality API services, primarily HTTP REST-based. Define API specifications using OpenAPI and other industry standards. Develop APIs to meet non-functional requirements such as performance, scalability, and reliability. Integrate APIs with various software components, including data stores and third-party More ❯
Posted:

Software Engineer (DV Security Clearance)

Manchester, North West
CGI
role As a minimum, candidates must have proven technical skills in at least one (ideally several) of the following: • Containerisation/Container Security; • Microservice Architectures; • API Development, REST, Swagger, OpenAPI, gRPC; • Cloud platforms and technologies, AWS, (e.g. Lambda, API Gateway, EKS), Azure, Google Cloud Platform (GCP); • Cloud native Apps, Kubernetes, OpenShift, MicroK8s; • Infrastructure as Code (IaC), automation & configuration management More ❯
Employment Type: Permanent
Posted:

Senior Java Developer (DevSecOps) - VP

London, England, United Kingdom
Hybrid / WFH Options
11037 Citibank, N.A. United Kingdom
SQL integration, and change management using Flyway. Utilize Hazelcast for distributed caching and data storage. Deploy and manage applications on OpenShift using microservice architecture. Design and document APIs using OpenAPI standards. Write and maintain unit, integration, and end-to-end tests using JUnit 5, Mockito, WireMock, and Testcontainers. Collaborate with cross-functional teams to implement DevSecOps practices, including SCA … SQL integration, and change management using Flyway. Utilize Hazelcast for distributed caching and data storage. Deploy and manage applications on OpenShift using microservice architecture. Design and document APIs using OpenAPI standards. Write and maintain unit, integration, and end-to-end tests using JUnit 5, Mockito, WireMock, and Testcontainers. Collaborate with cross-functional teams to implement DevSecOps practices, including SCA More ❯
Posted:

Java Developer

Leatherhead, Surrey, South East
CGI
of space systems. Read more about the contract you'll be working on here Key Responsibilities • Develop and automate testing for Java microservices. • Build and maintain RESTful APIs utilizing OpenAPI and JSON. • Collaborate within agile teams, adapting to rapidly changing requirements. • Work in an environment that values pragmatic, delivery-focused problem solving and continuous learning. Required qualifications to be … successful in this role • Java Microservices Development: Proven experience in building and testing Java microservices. • RESTful API Development: Recent hands-on experience with developing APIs using OpenAPI and JSON. • Teamwork & Communication: Strong team working and communication skills; the ability to adapt to evolving project requirements. Highly Desirable • Spring/Spring Boot: Experience in developing applications using Spring/Spring More ❯
Employment Type: Permanent
Posted:

Mid Level Java Developer

Winnersh, Berkshire, UK
Hybrid / WFH Options
IDEMIA
standards. What you’ll bring: We’re looking for someone with foundation in Java Programming Language, typically gained over 1+ year Languages/Frameworks: Java, Spring Boot, Tomcat, PostgreSQL, OpenAPI 3, REST APIs Version Control/Tools: Git, SVN, Bitbucket, Nexus, SonarQube, Nessus, Cyberwatch Good communication skills and English proficiency A collaborative mindset to foster teamwork and build strong More ❯
Posted:

Mid Level Java Developer

Winnersh, England, United Kingdom
Hybrid / WFH Options
IDEMIA
standards. What you’ll bring: We’re looking for someone with foundation in Java Programming Language, typically gained over 1+ year Languages/Frameworks: Java, Spring Boot, Tomcat, PostgreSQL, OpenAPI 3, REST APIs Version Control/Tools: Git, SVN, Bitbucket, Nexus, SonarQube, Nessus, Cyberwatch Good communication skills and English proficiency A collaborative mindset to foster teamwork and build strong More ❯
Posted:

Senior Go Software Engineer (Backend or Full-stack)

London, England, United Kingdom
Opinov8
experience, including Kubernetes and Docker. Deep understanding of Kubernetes, networking, configuration, and architecture. Basic knowledge of front-end frameworks like React/Redux. Experience with API definitions and implementations (OpenAPI, GraphQL). Extensive experience in server-side languages such as Go, Java, Python. Experience with SQL and NoSQL databases like MongoDB and Postgres. Production experience with at least one More ❯
Posted:

Senior Java Developer (DevSecOps) - VP

London, United Kingdom
Hybrid / WFH Options
Citigroup Inc
SQL integration, and change management using Flyway. Utilize Hazelcast for distributed caching and data storage. Deploy and manage applications on OpenShift using microservice architecture. Design and document APIs using OpenAPI standards. Write and maintain unit, integration, and end-to-end tests using JUnit 5, Mockito, WireMock, and Testcontainers. Collaborate with cross-functional teams to implement DevSecOps practices, including SCA More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Lead Software Engineer

London, England, United Kingdom
Hybrid / WFH Options
Made Tech Limited
Are you a Software Engineer that wants to actually see the real-world impact from what you help to create? Our mission is simple! We believe we can use tech to make public services better. We also believe this can More ❯
Posted:

Lead Software Engineer

London, England, United Kingdom
Made Tech Limited
Our aim at Made Tech is to use human-centred technology to improve our society. We believe putting people at the heart of designing, building and delivering public services leads to better outcomes for everyone. Are you a Software Engineer More ❯
Posted:

Python Backend Developer - AWS

London Area, United Kingdom
Response Informatics
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 ❯
Posted:

Python Backend Developer - AWS

City of London, London, United Kingdom
Response Informatics
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 ❯
Posted:

Python Backend Developer - AWS

South East London, England, United Kingdom
Response Informatics
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 ❯
Posted:

Python Backend Developer - AWS

london, south east england, united kingdom
Response Informatics
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 ❯
Posted:

Python Backend Developer - AWS

slough, south east england, united kingdom
Response Informatics
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 ❯
Posted:

Python Backend Developer - AWS

london (city of london), south east england, united kingdom
Response Informatics
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 ❯
Posted:

API Developer (SC Cleared)

London, England, United Kingdom
amber labs
requires strong experience in API security, containerisation, and Agile methodologies. Roles and Responsibilities Design, develop, and maintain high-quality API services, primarily HTTP REST-based. Define API specifications using OpenAPI and other industry standards. Develop APIs to meet non-functional requirements such as performance, scalability, and reliability. Integrate APIs with various software components, including data stores and third-party More ❯
Posted:

Full stack Developer

London, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
Nuxt, Angular. Progressive Web Apps (PWA) & SPA Development: Service Workers. SEO & Performance Optimization: PageSpeed Insights, Google Search Console, Google Analytics. Node.js Frameworks: Koa, Express.js, Hapi, Meteor, LoopBack. API Development: OpenAPI (REST APIs), GraphQL, SOAP. Authentication: next-auth, Supabase, Auth0, Keycloak, AWS Cognito. Backend Services & Development: ETLs, scripting tools, command-line tool authoring. Databases Relational Databases: PostgreSQL, MySQL, MariaDB, Microsoft More ❯
Posted:

Full-Stack Developer, Parameta Solutions

London, England, United Kingdom
TP ICAP Group
problem-solving, and collaboration. Our key technologies, and you don’t need experience with all of these - we value adaptable developers eager to learn include: Frontend: React, TypeScript, tRPC, OpenAPI + Codegen, Nx Backend: Node.js, Java, Spring, Hibernate Cloud & DevOps: AWS, Terraform, Lambda, Aurora, Kubernetes Data: Snowflake, Postgres, Airflow Auth & Design: Okta + OIDC, Figma Tooling: GitLab, CI/ More ❯
Posted:

Platform Engineer

London, England, United Kingdom
Magentic
performance awareness. Service Architecture : experience building and operating high-availability, distributed systems (microservices and event-driven). API Design : REST and gRPC, with versioning, throttling, auth, and schema validation (OpenAPI, Pydantic, Protobuf). Datastores : deep knowledge of RDBMS (PostgreSQL/MySQL), NoSQL (DynamoDB, Redis, Cassandra), and storage optimization techniques. Asynchronous Processing : familiarity with task queues (Celery, Sidekiq, SQS, Kafka More ❯
Posted:

Backend Developer (Kotlin)

City of London, London, United Kingdom
Synthesized
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 ❯
Posted:

Backend Developer (Kotlin)

London Area, United Kingdom
Synthesized
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 ❯
Posted:

Backend Developer (Kotlin)

london, south east england, united kingdom
Synthesized
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 ❯
Posted:

Backend Developer (Kotlin)

london (city of london), south east england, united kingdom
Synthesized
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 ❯
Posted:

Backend Developer (Kotlin)

Slough, England, United Kingdom
JR United Kingdom
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 ❯
Posted:
OpenAPI
England
25th Percentile
£56,250
Median
£57,500
75th Percentile
£81,250
90th Percentile
£107,500