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I’m working with a fast-growing SME who are accelerating the resale and recommerce industry. The company offer an end-to-end solution that combines modern technology, smart data, and expert valuation to create a seamless, customer-first marketplace experience. As the Senior Test Engineer, you will own and build the quality function across their customer-facing websites and front-end applications. You will define the testing foundations, implement modern automation practices, and embed a quality-first mindset across the engineering team.
Job Responsibility:
Design, build, and maintain automated test frameworks using Playwright and C#
Lead both manual and automated testing across web and front-end applications
Establish testing standards, processes, and best practices from the ground up
Own end-to-end quality assurance from planning through to release sign-off
Integrate automated tests into CI/CD pipelines (Azure DevOps, GitHub Actions)
Conduct regression, exploratory, negative, and boundary testing
Collaborate with developers and product managers to define acceptance criteria and test strategies
Create and maintain clear test plans, test cases, and defect documentation
Support and mentor junior testers as the team grows
Champion shift-left testing and continuous improvement across the engineering function
Requirements:
Strong experience in both manual and automation testing
Hands-on experience building automation frameworks using Playwright (preferred)
Strong scripting ability in C# / .NET
Experience testing modern web applications (HTML, CSS, JavaScript)
Experience with API testing tools such as Postman or similar
Understanding of SQL for data validation and test setup
Experience working within Agile environments
Hands-on experience integrating tests within CI/CD pipelines
Confidence performing negative and boundary testing
Ability to operate in a fast-paced, scale-up environment where processes are still being refined
Nice to have:
Experience mentoring or supporting junior testers is highly desirable