Senior Test Automation Engineer; Python, API​/Backend

Senior Test Automation Engineer (Python, API / Backend)
UK Hybrid / Remote Permanent

We are recruiting for a Senior Test Automation Engineer to join an engineering team working on large-scale backend platforms and SDKs. This role is heavily focused on API testing and Python-based automation and is suited to experienced engineers with a strong technical QA background.

This is not a UI-focused or manual QA role.

Responsibilities

• Design, implement, and execute automated and manual tests for backend systems and APIs

• Analyse requirements and produce detailed test plans and test cases

• Maintain and extend an existing Python-based automation framework

• Develop and execute API and SDK tests, including regression, negative, and backward-compatibility testing

• Identify, log, and verify defects and work closely with engineers to resolve issues

• Contribute to quality, reliability, and testability improvements across the platform

• Test applications deployed in cloud environments

Requirements

• Significant experience in test automation within a software engineering environment

• Strong experience testing APIs and backend services

• Hands-on experience writing automation in Python

• Experience with Java, JSON, XML, and web services

• Comfortable working in a Linux development environment

• Strong troubleshooting skills across both black-box and white-box testing

• Solid understanding of authentication and authorisation mechanisms

• Experience using source control and defect tracking tools

• Experience with commerce, payments, or financial systems is advantageous

• Degree in Computer Science or a related field preferred

Right to Work

Applicants must have the legal right to work in the United Kingdom without the requirement for visa sponsorship now or in the future. Unfortunately, sponsorship is not available for this role.

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