The Founding Mobile Engineer will own the Jetty mobile experience, building user-facing features, optimizing the app architecture, and integrating AI insights. This role requires strong iOS skills and experience in startups, with a focus on product quality and user engagement.
Jetty is building the first AI functional health doctor & coach. We're starting with solutions for people living with chronic illness, the hardest use case. Our mission is to help people become their own best advocates by giving them an intelligent partner that evolves with their health journey, helping them understand what their body is telling them.
Health data is uniquely hard: personal, messy, and constantly changing. Symptoms ebb and flow rather than turning on and off. Patterns emerge over weeks, not sessions. And the signals that matter—what actually helps someone feel better—are different for everyone.
We’re a small, high-velocity team with big ambition. We move fast, think deeply, and care about substance over hype. You’ll work directly with the founding team: a former senior AI leader from Palantir and an experienced former venture investor from the world’s largest VC firm, NEA.
Jetty is backed by the top seed investor in NYC and recently raised over $2M.
The Role
We're looking for a Founding Mobile Engineer to own the Jetty mobile experience.
Jetty is already live with real users. This role is about refining and extending a product that handles sensitive, high-context information and making it feel clear, calm, and reliable even when the underlying system is complex.
Platform: iOS-first today. Android experience is a plus (not required).
Logistics: Remote (preference for US time zones), with optional in-person collaboration in NYC.
What You'll Do
- Build and ship user-facing features across the entire Jetty mobile app
- Translate messy, real-world inputs (voice, text, passive signals, AI outputs) into clear, trustworthy UI flows.
- Own mobile quality and craft: performance, reliability, accessibility
- Integrate AI-driven insights and summaries into the product, handling uncertainty and failure states thoughtfully.
- Instrument mobile analytics (key events, flows, and retention) to understand how users engage and improve the product quickly.
- Partner closely with design, backend, and AI leadership to shape product decisions in a fast-moving, early-stage environment.
This is our first mobile engineering full-time hire—you’ll play a foundational role in shaping both the product and the technical culture at Jetty.
What We're Looking For
Experience: ~2–5+ years experience building mobile apps in startups or fast-moving product teams. Strong iOS fundamentals and a track record of shipping end-to-end features.
Product instincts: You think in flows, states, and edge cases (not just screens)
Architectural judgment: You can help define and evolve the mobile architecture, making pragmatic tradeoffs between speed and long-term maintainability.
Comfort with ambiguity: You can take a loose problem statement, make good tradeoffs, and ship something solid.
High bar for craft: You care about polish, reliability, and the small details that build trust.
Bonus:
- Android experience (Kotlin / Compose) or prior cross-platform shipping.
- Experience with design systems / component libraries.
- Experience with audio/voice, background tasks, push notifications, or real-time UX.
- Experience in privacy-sensitive domains (health, finance, etc.).
What We Offer
- The opportunity to build a product that genuinely changes how people manage their health.
- Competitive salary & meaningful equity package.
- Real ownership and impact from day one on a live product with users.
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