Test Automation Engineer – Selenium (Contract)

Location: Milton Keynes

Duration: Until 31 December 2026

On-site Requirement: 2–3 days per week

Day Rate: £218 (Inside IR35)

Clearance: Contractor must be eligible for BPSS

We are seeking an experienced Test Automation Engineer with strong expertise in Selenium and a proven track record in building scalable automation frameworks. This role requires hands-on technical capability, strong analytical skills, and the ability to work within a fast-paced delivery environment.

Key Responsibilities

• Design, develop, and maintain automated test scripts using Selenium WebDriver with C# or Java.
• Implement and refine automation strategies for functional, regression, and end-to-end testing.
• Develop data-driven, keyword-driven, and hybrid automation frameworks.
• Build and maintain test harnesses and libraries to support automation.
• Implement parallel execution and distributed testing to reduce execution time.
• Work with BDD frameworks such as SpecFlow.
• Automate API testing using tools such as RestSharp and integrate API and UI automation.
• Create detailed automation test reports and dashboards.
• Implement mocking and stubbing techniques to support testing efficiency.
• Write complex and optimized XPath locators.
• Apply and maintain Page Object Model (POM) design patterns.
• Execute automated tests and analyse results to identify defects and inconsistencies.
• Log and track defects using tools such as JIRA.

Required Skills and Experience

• Strong proficiency in C#, OOP concepts, and SOLID principles.
• Experience with unit testing frameworks including NUnit, MSTest, or xUnit.
• Proven experience in designing and maintaining automation frameworks.
• Hands-on experience with SpecFlow for BDD.
• Strong knowledge of Git, Bitbucket, or similar version control systems.
• Experience with CI/CD tools such as Jenkins, Azure DevOps, or TeamCity.
• Proficiency in SQL for query writing and database validation.
• Must have strong API automation experience.