QA Test Engineer

Experis; England; Hybrid; GBP 100,000 - 125,000; Part time

Job summary

A leading IT recruitment agency is seeking a QA Test Engineer in Northampton for a 6-month engagement, primarily onsite. In this role, you will perform both manual and automated testing of REST APIs and integration workflows, validate API documentation, and develop automation scripts. Candidates must have strong experience in tools like Python, Swagger/OpenAPI, and CI/CD processes. This position offers competitive pay at £400 per day within IR35 regulations.

Responsibilities

• Perform manual and automated testing of REST APIs and integration workflows.
• Conduct JSON schema validation and API contract verification.
• Review and validate API documentation using Swagger / OpenAPI specifications.
• Develop Python scripts for simulation and automation.
• Maintain test plans, test cases, and use cases.

Skills

Manual Testing

REST API Testing

Automation

JSON

JSON Schema

Swagger/OpenAPI

Tools

Python

Karate

Excel

LoadRunner

Insomnia/Bruno

GitLab

Jenkins

Kibana

AppDynamics

Job description

Overview

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