Senior Product UI/UX Designer (m/f/d) at BEAT81 in Berlin, Berlin, DE

About BEAT81

At BEAT81, we're on a mission to revolutionize fitness by merging the best of technology, group training, and expert coaching. As a rapidly growing fitness-tech startup, we empower people across Europe - and soon the world - to Sweat Smarter Together. Through innovative HIIT & RIDE workouts, real-time heart rate monitoring, and gamification, we're transforming the traditional fitness experience into something dynamic, personalized, and impactful.

We're not just building a global leader in fitness and technology; we're building a world-class team. At BEAT81, we value passion, potential, and the power of fresh perspectives.

The Role

We're looking for a Senior Product UI/UX Designer to join us in our Berlin office to shape how people experience BEAT81 - from booking their first class to crushing their hundredth.

You'll own design across our product ecosystem: the member app, coach tools, and our most honest challenge - the user’s immediate in-workout experience. We need someone who can zoom out to build systems that scale, then zoom in to obsess over the micro-interactions that make an experience feel alive.

This role blends typical product design with something rarer. Yes, you'll improve flows, refine interfaces, and build scalable design systems. But you'll also design for moments most designers never touch: people under physical and cognitive load, hearts pounding, 20 seconds left on the clock. In those moments, every pixel needs to earn its place. Simplicity isn't a nice-to-have, it is what defines if users come back to push hard again.

The workout screen is the last thing our members see before they dig deep. It's the difference between "I don't know what I'm doing" and "I've got this." Between quitting at month two and building a lifelong habit.

You'll shape that moment - for thousands of people, multiple times per day, across Europe.

If that excites you, let's talk.

You will:

• Own Product Design across BEAT81's member app, coach tools, and in-workout experiences
• Build and maintain design systems that create consistency across our product suite
• Design our real-time workout interfaces - translating complex data (heart rate, power, cadence) into intuitive visuals a first-timer understands instantly
• Design in-class feedback and progress tracking experiences
• Be the first dedicated Product UI/UX Designer, reporting to the Director of Product Operations. You'll work directly with our CEO/CPO, two Product Managers, and multiple engineering squads.
• Design iteratively, prototype rapidly, test in live environments, and iterate based on observed behavior
• Balance long-term system-thinking with hands-on execution: You contribute to Product strategy as much as you support in making it happen.

You have:

• 5+ years of Product Design experience, with demonstrable work on real-time, high-cognitive-load interfaces.
• Regular command of AI tools to accelerate your workflow – whether for rapid concept generation, prototyping, or exploring design directions. You see AI as a multiplier for your taste, not a replacement for it.
• Strong motion design skills - you think in states, transitions, and feedback loops, not just static screens.
• Fluency in Figma, prototyping tools (Principle, ProtoPie, or similar), and enough front-end understanding to collaborate effectively with the Product team.
• The ability to articulate why - you defend design decisions with user psychology, and design best practices.
• A bias toward testing over debating.
• Comfort with ambiguity and ownership.

Nice to have:

• Background in game design, interaction design for sports/fitness, or immersive experience design
• Experience with spatial/environmental design (stadium displays, retail experiences, live events)

This role is not for you if:

• Your portfolio is primarily marketing sites, e-commerce, or B2B SaaS dashboards
• You haven't worked with animation or motion-design as a core design tool
• You prefer pixel-perfect handoffs over fast iteration
• You’re not located in Berlin

Benefits:

🏋️‍♂️ WALK THE TALK: Unlimited BEAT81 workouts for you and one other person of your choice. Additionally a membership to John Reed Berlin Bötzow just for you: We guarantee that you'll get fit with us.

📚 LEARN & GROW: We support your professional development with a dedicated budget for courses, workshops, and certifications.

⏰ FLEXIBLE WORKING HOURS: Yoga before work and a workout at lunch? No problem. With our flexible working hours, you can easily balance your personal and professional life.

💆‍♀️ MASSAGE DISCOUNT: Relax and recover with 12% off all New:Soul massage bookings.

🎉 EVENTS: Our summer and winter parties have become as legendary as our annual offsite - perfect opportunities to spend time with the teams. In addition we host monthly meet-ups and team workouts.

🍎 TASTY PERKS: Free drinks, fresh fruit, coffee, tasty granola, and more will keep you energized throughout the day.

🏥 HEALTH INITIATIVES: Stay healthy and balanced with our quarterly health management initiatives to support your physical and mental well-being, keeping you energized and focused throughout the year.

🐶 BRING YOUR DOG TO WORK: No need for dog-sitting - your furry friend is always welcome in the office!

💼 MONEY ON TOP: Sign up for a private company pension plan in partnership with Stuttgarter Versicherung - so you can look into the future with confidence.

🌱 FUTUREBENS: You will have access to a personalized dashboard on FutureBens, the platform for sustainable and future-oriented employee offers from over 130 eco-friendly brands.

BEAT81 is an equal opportunity employer, which means we do not discriminate. We celebrate diversity and are committed to creating an inclusive environment for all employees.