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Founding Engineer (Potential CTO)
MONTREAL · US
$170K–$170K
Full-time
SENIOR
About the Role
Founding Engineer (potential CTO) opportunity at a seed-stage, AI-native digital health startup focused on nervous system repair and chronic disease management. You'll own the full technical journey from shipping a React Native AI coaching app to architecting a real-time nervous system training coach using Claude and wearable biosignal data. This is a fully in-person role based in Montreal, San Francisco, or New York City.
Responsibilities
- Serve as Founding Engineer and potential CTO, owning technical direction and day-to-day execution.
- Ship the AI coaching product v1 end-to-end from React Native mobile app to Claude-backed inference and wearable integrations.
- Architect an AI-powered nervous system training coach including model design, prompt engineering, tool use, and evaluation pipelines.
- Translate biosignals (HRV, breath, motion, PPG) into real-time personalized coaching.
- Build AI-powered QA and testing pipelines for safe, daily shipping.
- Integrate iOS/HealthKit and wearable platforms (Apple Watch, Oura, Whoop, EEG headbands).
- Own full-stack decisions across frontend, backend, infrastructure, and AI layers.
Requirements
- Production experience shipping and operating Claude or other frontier LLM-based systems (prompts, tool use, evals).
- Willingness to work in-person in Montreal, San Francisco, or New York City.
HealthKit
Milpitas · US · 30+ employees
Simple HealthKit is a healthcare company providing a fully integrated, enterprise-grade platform that combines diagnostics, lab testing, and digital health solutions. Its mission is to improve healthcare access and equity by providing at-home and in-clinic screening programs with actionable results and proactive follow-up.
