13 of 13 Contract OpenAPI Jobs

Apigee Developer

Hiring Organisation
ARM
Location
Slough, Berkshire, United Kingdom
Employment Type
Contract
deployments Required Skills & Experience: Proven experience working with Apigee (Edge or Apigee X/Hybrid) Strong understanding of API design principles (RESTful services, OpenAPI/Swagger) Experience implementing API security (OAuth2, JWT, SAML, TLS) Hands-on experience with JavaScript (for Apigee policies) and API policy configuration Familiarity with microservices ...

Software Engineer - Android Developer

Hiring Organisation
Talent Locker
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £530 per day
Kotlin, Jetpack Compose) Backend development (Rust, Python or Go) Git and modern development workflows Docker + CI/CD pipelines API design (REST/OpenAPI) Working in secure or controlled environments Nice to have: AWS or Azure experience Kubernetes Agile delivery experience Secure coding awareness If you like building ...

MuleSoft Developer

Hiring Organisation
EUROPEAN SOFTWARE SOLUTIONS (UK) LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350 per day
integration-related incidents Required Skills & Experience Strong experience with MuleSoft Anypoint Platform (Mule 4) Proven hands-on expertise in: API design (RAML/OpenAPI) DataWeave transformations REST/SOAP integrations Experience integrating with: Salesforce (Sales/Service Cloud) Powercloud (utility billing systems) SAP (IS-U/legacy billing systems ...

Lead Java Developer

Hiring Organisation
TXP
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day
ensure quality delivery. Required Skills Java, Spring Boot, JUnit, Kubernetes. Desirable Skills JPA, Maven, Mockito, AWS, GitLab CI/CD, Helm, OpenAPI, SQL, Kibana, Shell scripting. Clearance BPSS eligibility Mandatory SC Clearance preferred, alternatively must be eligible Location: Telford - once a week ...

MuleSoft Developer

Hiring Organisation
Initialize IT
Location
United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
enterprise API design standards. Create reusable connectors, templates, and integration patterns to accelerate delivery across teams. Produce thorough API documentation using RAML or OAS (OpenAPI Specification). Deploy, configure, and monitor Mule applications on CloudHub and Runtime Fabric. Implement robust error handling, alerting, and logging strategies to support operational ...

Mulesoft Developer - Fully Remote

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 315 Daily
enterprise API design standards. Create reusable connectors, templates, and integration patterns to accelerate delivery across teams. Produce thorough API documentation using RAML or OAS (OpenAPI Specification). Deploy, configure, and monitor Mule applications on CloudHub and Runtime Fabric. Implement robust error handling, alerting, and logging strategies to support operational ...

Integration Engineer

Hiring Organisation
Chroma Recruitment Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Contract
integration experience across: APIM Logic Apps Function Apps Service Bus Event Grid Experience with C# and/or Node.js Strong API knowledge (REST, JSON, OpenAPI, OAuth 2.0) Experience with Key Vault, Managed Identity and Application Insights Git and CI/CD experience Strong understanding of monitoring, error handling ...

Senior Front End Developer (React/ TypeScript/ Python/ Azure)

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Inside IR35
JSON data sets. Create reusable, component-driven UI patterns within modular, portal-style architectures. Work with backend teams to define API contracts using an OpenAPI-first approach. Support Azure deployments across App Services and Functions, with CI/CD via GitHub Actions. Apply secure authentication patterns using Entra ...

Test Automation Engineer / Software Tester

Hiring Organisation
Matchtech
Location
Farnborough, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£410/day
with: Behaviour Driven Development (BDD) Test Driven Development (TDD) Strong coding skills in: C# (essential) Python (highly desirable) Experience testing: RESTful APIs Swagger/OpenAPI services SOAP services Web applications and user interfaces Experience with source control and CI/CD tooling: GitHub GitHub Actions Strong defect management ...

Senior Technical Business Analyst

Hiring Organisation
Exalto Consulting
Location
Remote with occasional travel to North West, Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425/day £425 per day, outside IR35
improving specification quality. Experience creating visual artefacts such as journey maps, workflow diagrams, wireframes, clickable prototypes and service blueprints. Awareness of API documentation, OpenAPI/Swagger, integration patterns, data mapping, accessibility standards, responsive design and cross-device user experience constraints. ...

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
operator environments - TMF standards: Product Ordering (TMF641), Service Ordering, Service Activation, Service Inventory (TMF638) API Development & Integration - Strong expertise in API lifecycle design using OpenAPI specifications (OAS) - can read and write API specs - Hands-on with TMF/ODA frameworks for product and service APIs - Expertise in integration patterns … OpenAPI , REST, gRPC , GraphQL ) - Strong background in pub/sub and event brokers (Kafka, RabbitMQ) including security (TLS/SASL), scaling and schema evolution - Knowledge of headers, correlation/tracking IDs, authentication/authorisation and versioning Product, Data & Application Foundations - Product and data modelling: can actually do BSS/ ...

SC Cleared Node.js Developer

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Up to £560 per day + Inside IR-35
based platforms. What you'll be doing: Translating business and user requirements into effective technical designs Building APIs and backend services using Node.js (REST, OpenAPI) Developing user-focused services, putting accessibility and usability first Writing clean, reusable, and maintainable code Working with shared/common government tech stacks (Node.js … including OWASP principles and vulnerability management Collaborating with stakeholders and communicating technical concepts clearly Tech stack includes: Node.js, HAPI (web framework) API development (REST, OpenAPI) PostgreSQL, MongoDB, Redis Jest and Lab for testing Git for source control Cloud platforms (AWS, Azure) Docker, Kubernetes, ECS CI/CD tools (Azure ...

Python Developer- Leatherhead

Hiring Organisation
FDM Group
Location
Leatherhead, Surrey, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
frameworks such as Scrum, SAFe and DevSecOps. Responsibilities: Develop and maintain Python-based microservices for processing complex datasets Design and implement RESTful APIs using OpenAPI and JSON standards Build and execute automated tests to ensure performance and reliability Work within Agile delivery teams using frameworks such as Scrum, SAFe … teams to solve evolving technical challenges About You Strong experience developing and testing Python microservices using Docker Hands-on experience building RESTful APIs with OpenAPI and JSON Experience working in Agile environments with a delivery-focused mindset Knowledge of PostgreSQL and data-driven application development Strong communication skills with ...