Staff Product Designer

Posted Yesterday
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Warsaw, Warszawa, Mazowieckie, POL
Hybrid
Senior level
Artificial Intelligence • Machine Learning • Music • Generative AI
The Role
Own and ship signature interaction patterns and motion-driven UX for mobile (iOS/Android). Turn concepts into production-quality interfaces, build and maintain a scalable design system, prototype rapidly, and bridge design and engineering while setting the craft bar for the team.
Summary Generated by Built In

GRAI is a social music app out of Warsaw, still in alpha. We're building new ways to listen and respond through music — the social parts, the ones that only happen when there are people on both ends. This is a Staff-level, hands-on role. You'll own the interaction craft at the core of the product, set the bar as the team grows, and have a huge amount of room to define work almost nobody has done before.

What you'd do
  • Design the signature interaction patterns at the heart of the product, and use motion to make sticky flows feel clear and alive.

  • Turn rough feature concepts into scalable UX and finished, production-quality interfaces.

  • Build and own a flexible design system that keeps prototyping and iteration fast as we scale.

  • Prototype early and often, so we can test big, ambitious bets before committing engineering to them.

  • Own interaction quality end to end across iOS, Android — states, transitions, haptics, the +-2px stuff.

  • Act as the bridge between design and engineering, and set the craft bar for the designers who come after you.

Probably a fit if
  • 6+ years designing consumer apps, products, or software. Consumer social is a strong plus.

  • Real depth in interaction and motion design: you take a flow from concept to polished, production-ready yourself.

  • Systems thinking with receipts — you've built or owned a design system a real team relied on.

  • Fluent in Figma and hands-on with any prototyping tool (or code). Motion tooling like After Effects or Rive is a plus.

  • Obsessive about detail: you sweat the transition, the haptic, the pixel.

  • Self-directed. You set direction in ambiguity instead of waiting for a spec.

Nice extras
  • 3D, advanced motion, or generative AI tooling in your kit.

  • Strong opinions on music, culture, and where taste is heading.

What We Offer
  • Competitive Full-Time Rate: Competitive compensation based on a 40-hour work week, paid monthly.

  • Founding-Stage Equity: You’re joining a tight team at the alpha stage. We offer meaningful stock options so you have real skin in the game and share directly in the upside of what we build.

  • Remote & Autonomy: This is a full-time commitment (40 hours/week) where you have the freedom to build your own daily schedule. Our preferred location for this role is Poland. However, if you are currently based outside of Poland, we are happy to support your relocation.

  • Rest & Recharge: High-output work requires real downtime. We offer 26 business days of paid time off per year, plus 5 days off and Polish public holidays.

Skills Required

  • 6+ years designing consumer apps, products, or software
  • Experience delivering production-quality interfaces across iOS and Android
  • Deep interaction and motion design; able to take flows from concept to polished production-ready work
  • Built or owned a design system that a real team relied on
  • Fluent in Figma
  • Hands-on with prototyping tools or able to prototype in code
  • Obsessive about detail (transitions, haptics, pixel-level polish)
  • Self-directed; sets direction in ambiguity
  • Consumer social product experience
  • Motion tooling experience (After Effects or Rive)
  • 3D, advanced motion, or generative AI tooling experience
  • Strong opinions on music and culture
Am I A Good Fit?
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The Company
24 Employees
Year Founded: 2025

What We Do

GRAI is an AI music research lab based in Warsaw, Poland, dedicated to building foundation models and interaction primitives for the future of music. The company develops AI-powered tools that enable users to interactively remix, transform, and share songs, aiming to make music more social and interactive while ensuring artists maintain control and potentially benefit from new royalty streams.

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