Freelance Mobile QA (m,w,d) in Berlin

Your mission

We are seeking a skilled and detail-oriented Mobile QA to safeguard the quality of our mobile applications across Android and iOS. In this role, you will play a key part in our development process, collaborating closely with our mobile engineering team to ensure the reliability, usability, and correctness of our apps on real devices — from everyday use to edge cases and failure conditions.

Please note: Candidates must be located in Europe to ensure effective collaboration within our time zones, and this position requires a minimum commitment of 30 hours per week, with the option to expand to full-time.

Key Responsibilities:

• Collaborate with the mobile development team and product manager to plan and execute weekly sprint activities.
• Participate in daily stand-ups and sprint planning meetings, contributing insights to enhance product quality.
• Perform comprehensive manual and exploratory QA testing of our Android and iOS applications across a range of devices, OS versions, and screen sizes.
• Identify, analyze, and troubleshoot issues to accurately distinguish between client-side and server-side problems.
• Manage and execute testing tasks efficiently within each sprint cycle, and contribute to release and app-store readiness checks.
• Proactively suggest improvements, raise new tickets, and contribute ideas to elevate overall product quality.

Your profile

• Proven experience in manual QA testing of mobile applications (Android and/or iOS).- Comfort with mobile QA tooling e.g. adb and network inspection tools.
• Excellent attention to detail, documentation, and communication skills.
• Collaborative mindset with the ability to work effectively in cross-functional teams.
• Availability to work between 9:30 AM and 4:00 PM CET on weekdays.
• A continuous learning attitude and commitment to process improvement.

Why us?

• Make a meaningful impact:Help improve people's lives by working in an area that truly matters—their mental fitness and brain health.

• Competitive compensation:Attractive salary and bonus package.

• Grow quickly:A steep learning curve with plenty of opportunities to take ownership and work independently.

• Learn from others:Join a supportive environment where colleagues actively share knowledge and learn from one another.

• Have a direct impact:Become an integral part of an experienced, motivated, and interdisciplinary Growth Team.

• Get expert coaching:Benefit from guidance and coaching from experienced colleagues.