Software Development Engineer in Test (SDET), Amsterdam

What To Expect As a Software Development Engineer in Test (SDET), you focus on our backend software, intended for, but not limited to, the European market. This role involves a mix of software development and quality assurance (QA) skills to ensure the reliability and performance of our software products. You are therefore responsible for writing, designing, and implementing automated and manual tests across various software layers, including unit, integration, and system levels. It is an exciting and demanding position that requires you to multitask, prioritize, and work in an extremely fast‑moving, collaborative environment.

What You’ll Do

Design, develop, and execute test plans and test cases to evaluate software performance, functionality, and usability.

Explore and analyze existing and new features, processes, and user flows to design comprehensive and effective test scenarios.

Use analytical and problem‑solving skills to diagnose issues and develop testing solutions.

Demonstrate curiosity in uncovering edge cases, rare situations, and hidden dependencies to improve overall software resilience.

Collaborate and work in agile, cross‑functional teams.

Maintain a positive attitude toward continuous improvement and learning, and mentor others in test automation best practices.

Apply strong time‑management and organizational skills to handle fast‑paced environments and meet deadlines.

What You’ll Bring

3 to 5 years of experience in software testing, test automation, or development.

Strong experience with backend web stack technologies such as .NET Core, C#, Python, or Java.

Experience with frontend web frameworks like React and Angular.

Experience with test automation tools and frameworks such as Selenium, Playwright, TestNG, Appium, or similar.

Knowledge of databases and SQL for querying and verifying data integrity during testing.

Ability to integrate automated tests into CI/CD pipelines effectively.

Proficiency with version control systems like Git.

Understanding of RESTful web services and API testing.

Fluent English communication skills (both written and verbal) are required, along with flexibility in working hours to collaborate with teams across different time zones.

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