QA Test Engineer

Summary: The QA Test Engineer role in Northampton involves performing both manual and automated testing of REST APIs and integration workflows. The position requires collaboration with development and strategy teams to ensure high-quality deliverables, alongside participation in Agile ceremonies. The contract is initially for 6 months and requires working on-site 2-3 days a week. The role is classified as inside IR35 and is available only through an umbrella company.

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.

Key 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

Salary (Rate): £400 per day

City: Northampton

Country: United Kingdom

Working Arrangements: hybrid

IR35 Status: inside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

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