Senior Manual QA Engineer Mobile iOS & Android (m/w/d)

Location: Hybrid – München / Frankenthal / Hamburg / Cologne/ Remote Germany

Make invisible visible! Our goal is to reinvent scouting in football and build the #1 global scouting platform for identifying and developing talent. With the help of modern AI technology, CUJU enables every young football talent to be seen – regardless of origin, gender, or social background. We create fair opportunities and transparent pathways into professional sports. Our platform connects athletes, clubs, and organizations worldwide to rethink scouting – data-driven, objective, and mobile. Together, we are shaping the next generation of global talent scouting.

Your Mission

As a Manual QA Engineer, you’ll play a critical role in ensuring that every release of CUJU delivers a smooth and delightful experience to our users. You will be responsible for testing new features, preventing and identifying bugs, as well as validating user flows across Android and iOS platforms.
You’ll collaborate closely with developers, product managers, and designers to ensure each release meets the highest standards of usability, performance, and reliability.

Test Planning & Execution

• Design and maintain detailed test cases derived from business and technical requirements.
• Execute manual tests for mobile applications (iOS and Android) and backend APIs.
• Perform functional, regression, integration, and exploratory testing throughout all stages of a release cycle.
• Validate app behavior across various devices, OS versions, and network conditions.
• Create clear and detailed bug reports, test results,
• Quality Ownership
• Verify UI/UX consistency, responsiveness, and edge case handling.
• Take end-to-end ownership of the testing process within the release lifecycle.
• Collaborate with developers to reproduce, isolate, and document issues.
• Work closely with the Product and Design teams to understand requirements and acceptance criteria.
• Communicate test results clearly to developers, product owners, and other stakeholders.
• Ensure every release cycle meets quality gates before deployment.
• Champion objective and proactive feedback on product design, usability, and functionality. Foster shift-left testing practices and establish quality gates within the team
• Collaborate in system architecture discussions to embed testability and quality considerations early in the design process

Continuous Improvement

• Contribute to the QA process and documentation, identifying areas for improvement.
• Participate in sprint planning, reviews, and retrospectives.
• Support the setup of test environments, data, and device configurations.
• Collaborate with automation engineers to transition repeatable test cases to automated coverage over time.

Requirements

• 5+ years of hands-on experience in manual QA testing for mobile applications (iOS & Android).
• Strong knowledge of mobile testing methodologies, tools, and best practices.
• Familiarity with bug tracking systems (Jira, or similar).
• Experience testing on real devices and using emulators/simulators.
• Understanding of mobile app release cycles, including TestFlight and Google Play internal testing.
• Good understanding of API testing (Postman or similar).
• Strong attention to detail and user perspective.
• Excellent documentation and communication skills in English.
• Proactive problem-solver with a collaborative mindset.
• Ability to thrive in a fast-paced, agile environment.

Nice to Have

• Experience with mobile test automation frameworks (Appium (Java
• Experience with API testing frameworks (Playwright (Typescript))
• Exposure to CI/CD pipelines and mobile build workflows.
• Familiarity with analytics tools (Firebase, Crashlytics).
• Passion for sports, data-driven products, or gamified mobile experiences.

• Work on an exciting sports tech platform blending AI, performance, and user engagement.
• Be part of a growing product team that values quality and innovation.
• Shape the QA process and ensure CUJU’s mobile experience is second to none.
• Collaborate with a passionate, international team that’s redefining digital talent development.
• 30-day vacation

Your Impact

As a Senior Manual QA Engineer, you will ensure that every CUJU mobile release delivers a flawless and engaging experience to athletes and sports organizations worldwide. Through meticulous testing, attention to detail, and proactive collaboration, you’ll help maintain the highest standards of quality, usability, and performance across iOS and Android platforms. Your work will directly contribute to building trust in CUJU’s digital ecosystem and shaping the future of data-driven talent development in sports.

⚽️ Is this your next big play?

Are you passionate about sports, communicative, and eager to help shape the future of sports? Then we look forward to receiving your application!

Please send us your CV directly via the application link on JOIN.
Please note that, due to GDPR, we can only accept applications submitted online through our recruiting software. Thank you!