15 of 15 Contract OpenAPI Jobs in the UK excluding London

Lead Azure Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £550/day
operational readiness. Design, build, and operate back-end services using Java (Spring Boot) and/or Python (FastAPI/Flask), covering API design with OpenAPI, performance optimisation, and security controls. Develop modern user interfaces with React, focusing on accessible design, reusable components, and efficient state management. Design and maintain ...

Senior Java Developer

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £550 per day
delivering solutions within complex enterprise environments Desirable Skills Experience with any of the following would be advantageous: JPA Kibana Maven Mockito AWS GitLab Helm OpenAPI SQL Shell Scripting Preferred Background Candidates from the following sectors are particularly welcome: Public Sector/Government Banking Financial Services Insurance Utilities Telecommunications Other ...

Card Solutions Architects - Contract role - Sheffield - Immediate

Hiring Organisation
StrategicsIQ Ltd
Location
Sheffield, South Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract
engagement across business, engineering, and infrastructure teams Technical Skills Architecture & Design: Microservices, event-driven architecture, domain-driven design (DDD), layered architecture Integration: RESTful APIs, OpenAPI specs, messaging systems (Kafka, MQ), asynchronous processing Cloud & Infrastructure: Cloud-native design, containerisation (Docker, Kubernetes), CI/CD pipelines Data: Distributed data systems, RDBMS ...

Quality Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day
context switch across different priorities. Desirable JUnit Playwright/Selenium Cucumber/Gherkin Gatling OWASP ZAP SonarQube WireMock Kubernetes/Docker Microservices AWS OpenAPI WCAG/Axe/Wave GitHub Copilot Agile Scrum practices If this role is of interest apply now or email your ...

Quality Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
communication skills Agile Scrum experience Quality-driven mindset Desirable Skills Playwright, JUnit, Selenium, Cucumber/Gherkin, OWASP ZAP, SonarQube, Kubernetes, Docker, AWS, Microservices, OpenAPI, WCAG and DevSecOps practices. What We're Looking For A proactive Quality Engineer who thrives in Defence environments, enjoys solving complex technical challenges ...

Quality Engineer - Java | Automation | CI/CD

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£430/day inside ir35
genuine quality-first engineering mindset Highly desirable JUnit Playwright/Selenium Cucumber/Gherkin Gatling WireMock SonarQube OWASP ZAP Docker/Kubernetes Microservices AWS OpenAPI Accessibility/WCAG/Axe GitHub Copilot If you're a Quality Engineer, Automation Engineer, SDET or technically strong QA Engineer with Java ...

Java Developer

Hiring Organisation
CBSbutler Holdings Limited
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425 per day
expected to grow significantly over the coming years. Key Skills Strong Java development experience Spring/Spring Boot Microservices Git SQL & MongoDB Swagger/OpenAPI Software testing and code quality Application monitoring and troubleshooting Shell scripting Kubernetes - desirable, but not essential This is a great opportunity for a Java ...

Envoy API Engineer

Hiring Organisation
Uniting People
Location
Glasgow, Lanarkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Daily
Practical, hands-on cloud-native engineering experience Professional experience with Envoy Proxy and/or Envoy Gateway Strong understanding of RESTful APIs and the OpenAPI Specification (OAS) Hands-on experience implementing authentication and authorisation at API gateway level Strong experience with: OAuth 2.0 OpenID Connect (OIDC) JWT validation Mutual ...

Front End Developer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £579/day
component-library development using custom design patterns, encompassing MUI, Storybook and Figma. Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types. Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect. CI/CD, dependency management and frontend security practices. Experience working ...

Software Developer C and Linux

Hiring Organisation
System Recruitment
Location
Lymington, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£60,000
level Understanding of secure configuration delivery and deployment auditability of newly provisioned systems API Design & Implementation (maybe): Experience/Familiarity with: Working with OpenAPI (Swagger) specifications to define service interfaces Implementing APIs in C or similarly low-level environments, without reliance on full-stack frameworks Designing for defensive input ...

SAP Integration Analyst

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £500 per day
analytical approach with strong attention to detail. Desirable Experience API-led and event-driven integration architectures. REST, SOAP, messaging, and file-based integration technologies. OpenAPI specifications and API management platforms. Cloud migration, application modernisation, or data centre exit programmes. Dependency mapping and application portfolio assessment. Jira, Azure DevOps, Confluence ...

Java Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
Up to £620 per day + Inside IR35
contributing to the delivery of scalable and reliable applications. Required Skills Java Spring Boot JUnit Desirable Skills JPA Kibana Maven Mockito AWS GitLab Helm OpenAPI SQL Shell Scripting Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have ...

Java Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 620 Daily
contributing to the delivery of scalable and reliable applications. Required Skills Java Spring Boot JUnit Desirable Skills JPA Kibana Maven Mockito AWS GitLab Helm OpenAPI S click apply for full job details ...

Product Manager

Hiring Organisation
Randstad Digital
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£70 - £75 per hour
microservices, ensuring high availability, speed, and scalability. Technical & AI Execution: Work with engineers and data teams to design data models, APIs (REST/OpenAPI), recommendation engines, and AI workflows. Data Governance: Build clear data policies and frameworks across multi-market products. Agile Delivery: Write clear user stories (BDD/… Requirements Experience: 8+ years as a Technical PM managing high-scale APIs, platforms, or data products. Technical Skills: Deep understanding of API design (OpenAPI/Swagger/Postman), system design, and database tools (SQL/Python basics). AI & Cloud: Exposure to cloud infrastructure (GCP/Azure/ ...

WebMethods Developer

Hiring Organisation
Experis
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £690 per day
WebMethods Developer Pay Rate: Up to £690 per day umbrella only Clearance Required: Active MOD SC Duration: 6 months Location: Hybrid - 1 day per week in the office in either Bristol or London Job Description ...