Senior Test Automation Engineer

Jobtailor; Dortmund; Vor Ort; EUR 55.000 - 75.000; Vollzeit

Zusammenfassung

Jobtailor in Dortmund is seeking a QA Automation Engineer to develop and maintain automated tests for web applications, while also performing manual testing when needed. You will help shape test frameworks, implement performance tests with Azure, and ensure CI/CD pipelines carry quality throughout the release cycle.

The role requires a degree in CS or related fields, experience with C#/.NET and xUnit, plus familiarity with API testing tools and Azure services.

Qualifikationen

• Degree in Computer Science, Business Informatics, or equivalent practical experience.
• Experience with test automation for web applications and manual testing techniques; familiarity with xUnit.
• Proficiency in C# and ideally .NET with Entity Framework Core.
• Experience with API testing tools like Postman or RestSharp is a plus.
• Experience integrating tests into GitLab CI/CD pipelines.
• Familiarity with Azure Load Testing and Azure Web Apps and Application Insights.
• Strong understanding of clean code principles and maintainable tests.
• AI mindset and willingness to evolve with new technologies.
• Team player who contributes in meetings and supports QA best practices.

Aufgaben

• Develop and maintain automated tests (unit, integration, end-to-end) and expand test automation.
• Shape test architectures, ensuring maintainability, scalability, and best practices.
• Build performance and load tests using Azure tools; identify bottlenecks early.
• Integrate tests into CI/CD pipelines to embed quality into development.
• Create test strategies and test cases to systematically assure software quality.
• Perform manual and exploratory testing where automation is not suitable.
• Identify and document bugs; collaborate with developers to resolve issues.
• Drive continuous improvement of test processes and adoption of new tools.

Kenntnisse

Test automation for web apps

Manual testing

xUnit

Clean code

AI mindset

Team player

Ausbildung

Degree in Computer Science or equivalent

Tools

Postman

RestSharp

GitLab CI/CD

Azure Load Testing

Jobbeschreibung

• Test automation: You develop and maintain automated tests (unit, integration, and end-to-end) and continuously expand our test automation efforts.
• Test architecture: You help shape our test frameworks, ensuring maintainability and scalability, and introduce best practices.
• Performance & load testing: You build our performance and load tests from the ground up, analyze how changes affect our web apps using Azure tools, and help the team identify bottlenecks early.
• CI/CD integration: You integrate tests into our pipelines so that quality becomes an integral part of the development process.
• Test planning & design: You create test strategies and test cases to systematically ensure our software quality.
• Manual & exploratory testing: Where automation is not appropriate, you perform targeted manual and exploratory tests.
• Bug analysis & reporting: You find bugs, document them clearly, and work closely with the development teams to resolve them.
• Continuous improvement: You optimize test processes, introduce new tools and methods (including AI-assisted ones), and help the team continuously improve software quality.

Requirements

• Education & background: You have a degree in Computer Science, Business Informatics, a comparable qualification, or equivalent practical experience.
• Testing expertise: You have experience with test automation for web applications, are familiar with manual testing techniques, and know test frameworks such as xUnit.
• Tech stack: You are proficient in C# and have ideally worked with .NET (preferably recent versions) and Entity Framework Core.
• API testing: Experience with API testing tools (e.g., Postman, RestSharp) is a plus.
• CI/CD & cloud: You have experience integrating tests into GitLab CI/CD pipelines.
• Performance testing & Azure: Ideally, you are familiar with performance testing tools (e.g., Azure Load Testing) and Azure services (especially Web Apps and Application Insights).
• Clean code: You have a strong understanding of clean code principles and write tests that are maintainable and understandable.
• AI mindset: You see AI not as hype or a threat but as a core part of modern software development, and you want to continuously evolve your work with new technologies.
• Team player: You actively contribute in meetings, think critically, and support teams in implementing QA best practices.