Senior UX Interface Designer
We are seeking a Senior UX Interface Designer with a genuine, discerning visual sensibility who can recognize the difference between a screen that merely functions and one that commands attention, builds trust, and makes an athlete want to keep coming back. This is not a role for someone who executes a design system without aesthetic judgment. We need a designer who has a point of view, can defend it, and can elevate our product visually while remaining disciplined within our design constraints.
This role owns the Presentation Layer — how the product is formatted in terms of fonts, graphics, and animation, along with intuitive navigation. Key focus areas include innate visual design sensibility applied to a premium dark-surface consumer product; identity-driven, personalized experiences that adapt to each user's performance profile; high-quality motion and interaction design that communicates performance and progress; and action-oriented workflows that eliminate passive data consumption.
This is a startup environment where the ideal candidate thrives building from 0->1, is comfortable with ambiguity, and takes ownership rather than waiting for direction. We move fast, hold a high visual standard, and ship against hard dates. We also leverage modern AI-assisted development tools to accelerate delivery; comfort in these environments is a must.
Key Tasks & Responsibilities
Visual Design Leadership (Defining Responsibility)
- Own the overall aesthetic standard of the product: typography application, spatial rhythm, depth hierarchy, color restraint, icon quality, and component polish
- Ensure the product reads as a premium consumer tool — not a clinical health app, generic fitness tracker, or scaled-up spreadsheet
- Apply visual judgment to commercial surfaces (marketplace, subscription tiers, upsell moments) while maintaining trust in the system
- Build and maintain the authoritative Figma (or equivalent) design system: token library (colors, type ramps, spacing, radius, motion), component library, and identity cell documentation
Identity-Driven & Personalized Experience Design
- Design the identity recoloring moment in onboarding as the signature emotional beat of the product — a real-time ambient palette transition that feels intentional, earned, and beautiful
- Ensure the primary dashboard identity symbols function coherently as both the user's visual identity expression and the entry point to the AI coaching layer
- Design the shareable identity card in both quiet (clean, restrained) and expressive (gamified, bold numbers) aesthetic modes
- Ensure scoring loops, streak mechanics, and progression tier displays feel motivating and identity-consistent — not a generic gamification model
Motion Design & Interaction (Critical)
- Design and spec all animated moments, including the readiness score arc animation, the pre-launch cinematic welcome experience, identity ambient recolor, mission/achievement completion states, AI coaching insight reveals, and score/pillar change reveals
- Define motion standards for the full product: screen transitions, micro-interactions, press states, loading states, skeleton screens, empty states, and error states
- Produce implementation-ready motion specs for multiple devices: Bodymovin/Lottie files, timing curves, duration values, and engineering handoff notes
UX/UI Design Across the Full Screen Inventory
- Design action-oriented experiences that tell the user what to do next; every screen should have a clear direction rather than a passive display of data
- Translate complex biomarker, wearable, and AI-generated data into interfaces that are immediately readable and emotionally resonant — not dense, clinical, or overwhelming
- Design the dashboard priority engine as the product's daily engagement surface — one that feels like a coach, not a notification list
- Design an AI coaching modal as a distinct experience layer, and maintain high-fidelity designs across iOS, Android, an