? Founding Full-Stack Engineer - Fitness Tech & AI
Location: Remote, India
Experience: 1-3 years
Employment: Full-time
Company: Stealth-stage Fitness Technology Startup

About Us
We are a 1-year-old technology-led fitness startup building the quick-commerce layer for fitness - making personalized fitness services available on demand.
We already have a live product, paying customers and real-world usage.
We're now looking for a Founding Full-Stack Engineer to work directly with the founder and take significant ownership of our technology as we scale.
This is an early-stage role where you'll build, ship, debug and make technical decisions — not simply execute predefined tasks.

The Opportunity
We are looking for a Founding Full-Stack Engineer who is comfortable working across frontend, backend, databases, APIs and integrations.
You will initially take ownership of our existing production technology, improve automation and reliability, and then work on building a significantly better platform from the ground up.
Over time, we plan to build intelligent technology around fitness, personalization,



health data and AI.
If you enjoy building rather than just coding, this role could be a great fit.

What We're Looking For
1–3 years of hands-on software development experience.
We care much more about what you have actually built and shipped than the number of years on your resume.

You should have:

Core:
• JavaScript / TypeScript
• React / React Native
• Node.js / backend development
• Firebase / Firestore or similar backend platforms
• REST APIs & database design
• Git / GitHub
• Authentication & authorization
• Third-party API integrations
• Payment & notification integrations
• Debugging, testing & production troubleshooting

AI / Emerging Tech:
• Experience with OpenAI, Gemini, Claude or similar LLM APIs
• LLM-based application development & prompt engineering
• Familiarity with RAG, AI agents and tool calling is a plus

Engineering:
• Robust problem-solving and system de

📌 Founding Full-Stack Engineer (India)
🏢 Stealth Startup
📍 India