17 of 17 Contract OpenAPI Jobs in England

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 ...

Java Developer

Hiring Organisation
Hays Technology
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £640/day £600 - £640 p/d Inside IR35
capability -Stakeholder management -Strong communication and team engagement skills -Quality-driven approach Desirable across all three roles Maven Git/GitLab React/JavaScript OpenAPI OAuth2/OpenID JUnit/Mockito AWS Grafana/Kibana Microservices architecture Agile Scrum delivery Selenium/Playwright Java 17+/Spring Boot 3+ ...

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 ...

Kong API Gateway Specialist

Hiring Organisation
EUROPEAN SOFTWARE SOLUTIONS (UK) LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 per day
hands-on experience with Kong API Gateway (Enterprise or Open Source). Extensive experience in API management and governance. Strong understanding of RESTful APIs, OpenAPI Specifications (Swagger), and API design best practices. Experience implementing OAuth2, OpenID Connect, JWT, MTLS, and API security controls. Experience with API lifecycle management ...

Network Integration Engineer

Hiring Organisation
LA International Computer Consultants Ltd
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 - 550 Daily
deadlines; credible, resilient, and comfortable challenging the status quo to drive the best integration outcomes. * Technical: o API Engineering (REST/OData), specification using OpenAPI/Swagger, Postman-based testing. o SAP integration artefacts (IDoc types for vendor, PO, GR, invoice; BAPI/RFC; ALE; OData services). ...

Java Engineer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£570 - £620/day
tooling (e.g. OpenSearch, Grafana, Prometheus, Dynatrace) Technical leadership Agile working Preferred: Java 17+/Spring Boot 3+ Microservices Oauth/OpenId Maven Protobuf/OpenAPI gRPC Junit automated testing Git Workflows Nice to Have: React React Router/Remix Component Integration Testing RabbitMQ/SQS/ ...

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 ...

S/4HANA - Coupa Integration Architect

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £598 per day
challenging deadlines; credible, resilient, and comfortable challenging the status quo to drive the best integration outcomes. Technical: API Engineering (REST/OData), specification using OpenAPI/Swagger, Postman-based testing. SAP integration artefacts (IDoc types for vendor, PO, GR, invoice; BAPI/RFC; ALE; OData services). Coupa integration ...

Kong API Engineer (urgent start)

Hiring Organisation
Uniting People
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Daily
Golang and/or Lua Hands-on experience with API Management platforms , ideally Kong API Gateway Strong understanding of RESTful APIs and the OpenAPI Specification (OAS) Hands-on API security experience, including: OAuth 2.0 OpenID Connect (OIDC) JWT validation Key Authentication Mutual TLS (mTLS) Strong cloud-native engineering experience ...

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 ...

Front End Developer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£420 - £476/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 ...

Front End Developer

Hiring Organisation
Experis
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £579 per 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 ...

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 ...

Full-Stack GitOps Engineer - (Kong and Envoy)

Hiring Organisation
Uniting People
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Daily
building applications using React.js and Next.js Backend development experience with Python, Golang or Java Experience building schema-driven UIs and services Strong understanding of OpenAPI Specification (OAS) and/or JSON Schema Professional experience configuring API gateways, including: Kong Envoy Akamai/CloudFront Strong hands-on GitOps experience Desirable ...

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 SME

Hiring Organisation
Synergize Consulting Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
We are currently hiring for an SC Cleared webMethods SME for an initial 3-6 months contract assignment. (Duration is very likely to extend). You must hold current active SC Clearance. This is a ...