Freelance UX​/UI Design Manager - Mobile App; m​/f​/d

We’re looking for an experienced UX/UI Design Manager (m/f/d) to shape the end-to-end experience of the Sennheiser Mobile App
—turning advanced audio technology into intuitive, premium mobile journeys. From onboarding and Bluetooth pairing to personalization features like EQ, ANC, and sound profiles
, you’ll work closely with product, engineering, and hardware teams to craft seamless touchpoints across our audio ecosystem that reflect Sennheiser’s lifestyle positioning and passion for sound.

• Design end-to-end mobile experiences for iOS and Android — from user journeys and wireframes to refined, pixel-perfect interfaces
• Turn complex technical and hardware requirements into simple, elegant user experiences for Bluetooth-connected audio devices
• Create engaging interfaces for sound personalization such as EQs, ANC, sound profiles, and user preferences
• Design seamless onboarding, device pairing, and firmware update flows that feel effortless and premium
• Conduct user research and usability testing to continuously refine and elevate the experience
• Build interactive prototypes and evolve design systems to ensure consistency and scalability
• Collaborate closely with developers during implementation and QA to ensure design excellence
• Identify and manage external UX/UI partners to support increased scope and upcoming product launches

• 5+ years of experience in UX/UI design, ideally in consumer electronics, lifestyle brands, or app-hardware ecosystems
• A strong portfolio showcasing mobile app design for iOS and Android (experience with connected devices is a big plus)
• Solid understanding of Bluetooth connectivity, device pairing, permissions, and dynamic device states
• Experience designing audio-related interfaces (EQs, presets, sound profiles) or strong passion for sound and music
• Proficiency in Figma and modern prototyping tools
• Deep understanding of mobile design guidelines (Apple HIG, Material Design)
• Comfortable working in agile, cross-functional environments
• Fluent in English;
  German or additional languages are a plus