ApplySarthi

Founding Engineer

ONI

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This role on the market

280 open founding roles across 182 companies are on ApplySarthi right now, most of them in Bengaluru (23), Delhi NCR (6), Hyderabad (2).

What founding roles keep asking for: LLMs (25%), SaaS (24%), B2B (23%), CRM (16%), TypeScript (15%), Python (15%), React (13%) — counted across their open postings here.

Founding Engineer jobs in India · Remote Founding Engineer jobs · Node.js jobs · React jobs · TypeScript jobs

ONI has 2 open roles listed here.

Counted across 14 company job boards, updated as roles open and close.

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Interviews for founding roles keep coming back to LLMs, SaaS, B2B, CRM. Practise those questions before you sit with ONI.

Questions you are likely to be asked

  1. Why do you want to join ONI?
  2. What is your experience with Node.js? Tell me one thing you learned the hard way.
  3. Walk me through a system you built. How was it designed, and what would you change now?
  4. Tell me about a hard bug you tracked down. How did you find the cause?
  5. How do you decide what to test, and what does good code review look like to you?

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Role: Founding Engineer Title: Founding Engineer – Full Stack (React + NodeJS + Typescript) Location: Remote / Hybrid (India) About ONI: ONI is reimagining prenatal care by building the largest connected pregnancy cohort in the world. We’ve developed a clinical web app for OB-GYNs and a connected care program for mothers. With 28 hospitals signed and 30,000+ mothers in year one, we’re launching with real scale and real data. Long-term, ONI will serve the entire reproductive health journey—from pregnancy to postpartum to early childhood development. What You’ll Do: Ship product fast and reliably across our full-stack (React + NodeJS + Typescript). Work with clinicians and real users to turn pain points into scalable features. Contribute to the core product roadmap and influence early engineering decisions. Build for scale: reliability, performance, and secure healthcare-grade data handling. Lay the groundwork for predictive modules to help OB-GYNs detect preterm risks early. You Might Be a Fit If You: Have 3–6 years of experience as a full-stack engineer (React + NodeJS + Typescript). Enjoy building 1→10 products in fast-moving teams. Want high ownership and autonomy in a mission-driven healthtech startup. Bonus: experience with healthtech, integrations with hospital systems, or AI/ML. Why Now: ONI is MVP-ready with signed customers and real deployments. You’ll help shape a product that will impact 30,000+ mothers in year one. Join a founding team with vision, traction, and global health ambitions.

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Listed on wellfound · posted 2026-09-07. ApplySarthi collects openings and links to application pages; the role is advertised by ONI, not by us.