7 of 7 Contract OpenAPI Jobs in England

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £525 per day + Inside IR-35
/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform ...

Senior C# .Net Developer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day Umbrella Inside IR35
/.NET 8 | ASP.NET Core | REST APIs | SQL Server | Entity Framework | Azure | Azure DevOps | Git | Docker | Kubernetes | Kafka | Redis | JSON/XML | Swagger/OpenAPI Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ...

Snr Java Developer (API Development)

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £551/day Inside IR35
/CD - Version control and automated build and deployment pipelines. Desirable Skills JPA/Hibernate Kibana Maven/Gradle Mockito AWS GitLab Helm OpenAPI/Swagger SQL Shell scripting AI-Assisted Development The programme is actively embracing modern AI-assisted development practices. Candidates should be comfortable using approved ...

Java Tech Lead

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
architectural requirements into technical designs, managing technical dependencies and supporting delivery planning. Desirable Skills AWS JPA/Hibernate Maven/Gradle Mockito GitLab Helm OpenAPI/Swagger SQL Kibana Observability and performance monitoring Event-driven architecture/messaging Shell scripting AI-Assisted Development & Leadership Willingness to actively embrace ...

Senior Technical Architect - Custody & Securities Services

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£750 - £850/day
Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT Messaging ...

Quality Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day
Playwright, Selenium, JUnit, Cucumber/Gherkin Performance & Security Testing: Gatling, OWASP ZAP, SonarQube Accessibility Testing: Axe, WAVE, WCAG Development & Testing Tools: WireMock, GitHub Copilot, OpenAPI Cloud & Infrastructure: AWS, Docker, Kubernetes, Microservices Contract Details Rate: £400-£430 per day (Inside IR35) Duration: 12 months Location: Telford - minimum 2 days ...

Front End Engineer / React Developer

Hiring Organisation
Hays
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £550 per day + £550 per day INSIDE
Component library and design system development using MUI, Storybook and Figma. Runtime validation and contract-first API integration using technologies such as Zod and OpenAPI-generated types. OAuth 2.0/OpenID Connect authentication, authorisation and secure session management. CI/CD, dependency management and frontend security practices. Experience within ...