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Founding Mobile Engineer at Juno

Juno· Engineering
Apply on company site
San Francisco, CA$130k - $200k + equityFull-timePosted 3mo ago

About the role

Founding Mobile Engineer role at Juno, an AI health assistant for chronic illness. Early-stage startup seeking a founder-level mobile engineer to build core mobile features and foundations for onboarding, personalization, memory, and AI-driven experiences.

Responsibilities

  • Build and ship core mobile features across the Juno app
  • Own interaction quality, animations, performance, and app feel
  • Work closely with the founders to turn ambiguous product ideas into polished experiences
  • Build the foundations for onboarding, personalisation, memory, voice/chat, and retention loops
  • Debug across React Native, native iOS, backend APIs, analytics, and AI systems when needed
  • Use AI-native development tools to move faster and explore more ideas.

Qualifications

  • You've built mobile apps end to end.
  • Strong experience with React Native/Expo and/or native iOS/Android.
  • You're comfortable working in Swift or Kotlin when needed.
  • You've worked with WebRTC, realtime audio, or similar realtime systems.
  • You care deeply about craft: latency, animation, usability, copy and tiny UX details
  • You can move fast and take ownership without needing much process
  • You can relocate to San Francisco (we can sponsor a visa).

Skills

Required:React NativeiOSSwift
Nice to have:AndroidKotlinWebRTC
Last updated Oct 25, 2026. Interested? Apply on the company site.
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About Juno

AI Health Assistant for Chronic Illness

Juno is an AI personal health assistant for the 1B+ people living with chronic illness. Launched in October, Juno now supports 125,000+ patients globally and has grown to $85K MRR.

Company profileWebsite

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