• Architect the core engagement loop for Rythm: how users build habits, unlock insights, and stay motivated month after month. • Design progression systems, streaks, and feedback mechanics that make health optimization feel fun and rewarding. • Map out narrative and motivational arcs across user journeys to transform data into a story of improvement. • Create UI/UX flows that integrate achievement, feedback, and reward states natively into the product experience. • Partner with product, engineering, and design to align interaction mechanics with real health data and outcomes. • Quickly prototype and test gamified features using Figma, Framer, or Unity to validate engagement concepts. • Define metrics for success: retention, habit frequency, intrinsic motivation, and delight. • Evolve Rythm’s experience into a daily ritual that feels like a game people want to keep playing.