YourSKIN combines skin tracking, insight generation, routines, and dermat-backed product recommendations — which means the backend needs to be lightweight, structured, and smart from day one. If you enjoy building systems that quietly power great user experiences, you’ll get a lot out of this role. What you’ll work on (high-level) - Build the backend for the YourSKIN MVP - Structure user data, logs, and routines - Create clean APIs for the mobile app - Integrate essential external services - Set up basic authentication + storage - Straightforward, product-led backend work — no over-engineering. What you should already know Must-have - Node.js (Express/Fastify) or Python (FastAPI/Flask) - REST API fundamentals (routing, error handling, auth) - Firebase/Supabase for DB + storage + authentication - How to handle file uploads (images) - Git + GitHub basics Good to have - Experience integrating external APIs - Basic cloud deployment (Render, Railway, Vercel, etc.) - Understanding of how mobile apps consume backend data - Interest in AI integrations (using APIs, not training models) Who this role fits People who: - enjoy clean backend logic - want real-world API building experience - prefer responsibility over hand-holding - want ownership over a full backend system - learn by building, not by watching tutorials What you get - Ownership of the backend behind YourSKIN - Real AI + mobile integration experience - A complete, portfolio-worthy backend project - Direct collaboration and quick decision cycles Potential for a paid role as the team grows