THE OPPORTUNITY Every time a Hinge Health member opens the app, your team's work is what greets them. The Home ("Today") tab and Explore/Library experience are the primary surfaces through which millions of people find, start, and return to their care — and a platform that a dozen other pods build on top of every sprint. We're evolving these surfaces from static, one-size-fits-all screens into a flexible, personalized member experience that routes each person to the right activity at the right moment. This is an experimentation-first team: we validate every bet in production, move through A/B tests at a high clip, and treat the Home screen as an ongoing product — not a shipped feature. We need a hands-on engineering leader to own what comes next. WHAT YOU'LL ACCOMPLISH - In your first 3 months, you will build deep trust with your team of ~8 engineers, embed yourself in the React Native (Phoenix) codebase and BFF layer, and establish your rhythm with PM and Design partners. You'll audit the current SDUI migration plan, identify risks, and start sequencing the team's experiment backlog with clear owners and dates. - In your first 6 months, you will drive the SDUI migration to complet