Founding Full-Stack iOS Engineer

ABOUT THE ROLE A Y Combinator-backed consumer wearable AI startup is hiring a Founding Full-Stack iOS Engineer to own the company's companion iOS app from the ground up. This is a high-ownership, founding-team role at the intersection of consumer hardware, real-time AI inference, and emotional intelligence. The company is building a first-of-its-kind wearable that reads and interprets a user's emotional state in real time — think a fitness tracker, but for your emotions and cognitive performance. You'll be the primary builder of the consumer-facing mobile experience, translating sophisticated AI model outputs (energy, mood, focus signals derived from audio and biometric data) into intuitive, beautiful interfaces. This role comes with significant equity upside and a clear path to leading mobile engineering as the company scales. The team is distributed, with presence in San Francisco and London. This role is based in London, with flexibility for hybrid or remote working arrangements. WHAT YOU'LL DO - Own the companion iOS app end-to-end — architecture, development, deployment, and ongoing iteration. - Surface real-time emotional-state outputs from the company's proprietary AI infere... Click Apply to read the full job description.