Senior UI Designer (m/f/d)

- At least 5 years of Mobile App Design experience in a product team delivering digital consumer-facing products (E-commerce, Games, or ideally Education/Health) - Personal interest in self-improvement - Experience designing (partially or fully) B2C mobile applications available on the Play or App Stores - Located in Germany, preferably Berlin, and able to come to the office once a month (sponsored) - Proficient in design tools such as Figma, Sketch, Adobe Creative Suite, and prototyping tools - Excellent eye for visual design and details - Experience conducting or supporting UX research to develop or improve digital products - Academic background in Design, Business Administration, Neuroscience, Psychology, or a related field - Lifelong learner, regularly engaging with science, health, and productivity content - Strong organizational and project management skills, able to handle multiple projects concurrently - Ability to analyze user flows, engagement, retention, and relevant data - Team-player mindset, eager to support colleagues - Motivation to be part of a start-up that positively impacts peoples lives - Familiarity with Google Material Design 3 and Apple Liquid Glass design guidelines (nice-to-have) - Knowledge of Lean Startup, Design Sprints, and Growth Hacking (nice-to-have) - Basic knowledge of German, French, Spanish, or Italian (nice-to-have)