QA Test Engineer
Northampton (2-3 days onsite)
Duration: 6 months initially
£400 per day inside IR35 - umbrella only
Key Responsibilities
- Perform manual and automated testing of REST APIs, decisioning components, and integration workflows.
- Conduct JSON schema validation, payload structure checks, and API contract verification.
- Review and validate API documentation using Swagger / OpenAPI specifications.
- Develop Python scripts for simulation, automation, and data validation.
- Prepare and maintain test plans, test cases, and use cases.
- Validate decision strategy outputs, API request/response mappings, and ODS data.
- Log and track defects in JIRA and prepare XRAY execution reports.
- Work closely with dev, BA, and strategy teams to ensure high?quality deliverables.
- Participate in Agile ceremonies and support performance/monitoring activities where required.
Core Skills
- Testing: Manual, REST API, Automation
- Technologies: JSON, JSON Schema, Swagger/OpenAPI
- Tools: Python, Karate, Excel, LoadRunner, Insomnia/Bruno
- CI/CD: GitLab, Jenkins
- Monitoring: Kibana, AppDynamics
- Concepts: SDLC, TDD, OAuth, Authentication/Authorization, Tokenization/Detokenization
- Good to have experience around Experian Strategy Manager validation, Experian Open Data Platform validation
