Full-time

Software Test Automation Engineer

Posted by High Tech Source • Rotterdam, Gem. Rotterdam; Zuid-Holland, Netherlands

📍 Rotterdam, Gem. Rotterdam; Zuid-Holland 🕒 February 20, 2026

About the Role

We’re currently supporting a high‑tech manufacturer of advanced industrial systems in hiring a Test Automation Engineer. In this role you will design, implement, and evolve automated testing for a C#-based Windows desktop application (front‑end and back‑end), helping ensure reliability and performance in a fast‑moving engineering environment.

What you’ll do

  • Design, implement, and maintain automated test frameworks for C# desktop applications (front‑end & back‑end).
  • Author UI, functional, and integration tests in C# using NUnit.
  • Integrate and maintain automated test execution in GitLab CI/CD.
  • Support Python scripting when helpful (e.g., data validation, CI/CD tooling, API tests).
  • Execute manual testing (functional, regression, exploratory) where automation isn’t feasible.
  • Collaborate closely with developers to identify coverage gaps and protect product quality.
  • Maintain clear test docu...

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