Senior Mobile Engineer for a Series A Health Tech Startup

We are searching for a Senior Mobile Engineer to join a fast-growing Series A health technology startup focused on at-home monthly blood testing and health insights. They have raised a total of over $24 million across three funding rounds, with its latest round in November 2025 raising $19 million.

Their main product is an easy, painless at-home kit for collecting your own blood sample. Your results appear in a private, HIPAA-compliant dashboard where you can track your biomarker changes over time and understand their implications for your health.

The Tech Stack:

• TypeScript end-to-end
• Express + React Router 7 (web)
• tRPC
• React Native (mobile)
• React Query
• Postgres + Redis

• Own features end-to-end — from design discussion to production rollout and monitoring.
• Ship TypeScript on React Native.
• Document your work so others can move fast.
• Be a great generalist across React Native OR an expert in a few areas.

• Bring 4+ years of hands-on software experience, with advanced and React Native TypeScript skills.
• Are comfortable working in a fast-paced startup where procedures aren't clearly defined.
• Have built some great things you can show us and describe in detail.
• Manage your own time, break down ambiguous problems, and deliver.
• Use AI tools as an accelerator—never as the decision-maker.
• Are not submitting an AI resume. (If you are human, please say so in your application)

• Have experience with Kotlin/Swift and native mobile development.
• Are comfortable with monorepos.

• Salary: $120k – $200k
• Equity: 0.05 % – 0.25 %
• Benefits: Health, Dental, Vision
• Time Off: Flexible PTO
• Work Setup: Fully remote​​​​​​​