Senior Software Tester (M/F/D)

13 days ago

Düsseldorf, GermanySenior

Responsibilities

Design, write, maintain, and execute functional test cases from requirements.
Perform manual, functional, exploratory, and mobile application testing.
Report clear and reproducible defects while collaborating closely with developers and product teams.
Support test automation and optimize system parameters, testing methods, and work processes.
Use AI models and coding assistants to improve test-case design and testing efficiency.
Help ensure that only commercial-grade software leaves the development team.

At least 5 years of manual or functional software testing experience, focused on mobile applications.
Proven ability to design, write, and maintain functional test cases from requirements.
Strong exploratory testing skills and clear, reproducible defect reporting.
Structured and analytical approach to testing and problem solving.
Curiosity about using AI and leading LLMs to work faster and smarter.
Good knowledge of JIRA, Agile, and Scrum.
Test automation experience with Appium, Ruby, and object-oriented programming is preferred.
ISTQB certification is preferred.

Hybrid work model with flexibility to work from home and the Düsseldorf office.
Flexible working hours.
Opportunity to co-design work processes and contribute to secure communication products.
AI-first tooling, including Cursor and leading AI models and coding assistants.
Fitness reimbursement and benefits covering pension, eye exams, computer glasses, wellness expenses, and paid time off, subject to eligibility.
Regular full-time schedule of 40 hours per week.

AppiumRuby

1,001-5,000 employees