API Tester (m/f/d)

About the Position

TestSolutions offers complete solutions in software testing. Since 2007, we have been ensuring the quality of software in industries such as airline, automotive, aviation, finance, healthcare, insurance, mobility, railway, and research.

We are always looking for committed API testers (m/f/d) who would like to enrich our team with their know-how.

Responsibilities

• Planning, creation, and execution of API tests for REST and SOAP interfaces.
• Test automation of API tests with tools such as Postman, Insomnia, or Karate.
• Validation of API functionality, performance, and security.
• Troubleshooting and analysis of API requests and responses.
• Checking and ensuring API quality in CI/CD pipelines.
• Creating test cases and test scripts to automate API tests.
• Documentation and reporting of test results with recommendations for developers.
• Working with developers, QA teams, and DevOps to ensure high API quality.

Requirements

• Experience with API testing and common API testing tools (e.g. Postman, REST Assured, SoapUI, Karate, Insomnia).
• Knowledge of HTTP protocols, JSON, XML, OAuth, JWT, and API security aspects.
• Experience with scripting/programming languages such as Java, JavaScript, TypeScript, or Python for test automation.
• Understanding of CI/CD pipelines and integration of API testing in DevOps environments.
• Basic knowledge of databases (SQL, NoSQL) and API mocking tools is an advantage.
• Confident handling of Microsoft 365, Teams, and Confluence.
• Analytical thinking, structured, and accurate way of working.
• Good written and spoken German and English skills.

What You Can Expect

• Complex IT landscapes in transition and exciting projects in an up-and-coming IT company.
• Training by the team, even in complex technical contexts.
• An international and open atmosphere.
• Communication at eye level.

We Offer

• An attractive salary
• Job security
• Job-related further training

A cover letter is not necessary if your CV is informative. Attachments such as references or certificates (ISTQB, IREB, Scrum, OKR, etc.) are welcome. We particularly welcome applications from people with disabilities, recruit strictly in accordance with the General Equal Treatment Act, take into account the individual needs of employees, and create an inclusive working environment.

Start your career with us

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