I built a full backend-learning platform solo — here's what I shipped (and what broke along the way)

#webdev #node #beginners #showdev

A few months ago I got tired of the same problem: you finish a "backend course," feel great for a day, then realize you still can't build anything real or pass an interview.

So I started building the thing I wish I'd had when I began. Today it's finally live: https://asbackendinstitute.com

Posting it here because dev.to is where I learned a ton — I'd genuinely love your feedback.

Why I built it

Most resources hand you videos and call it a day. The gap between "I watched a tutorial" and "I can actually build and get hired" is where people give up. I wanted the whole thing to be hands-on and job-focused.

What's inside

Instead of just videos, I tried to make everything practical:

Node.js & Socket.io courses — from scratch, with an English/Hinglish toggle (India-first audience)
A 24-topic roadmap with progress tracking, so you always know what's next
AI mock interviews — two interviewer personas that actually grill you and score you
DSA practice with a "select any line → AI explains it" helper
Live classes with recordings + AI-generated notes
In-browser dev stack — run MongoDB and code without any local setup
A "Backend Ready" certificate you can only earn by proving skills (no participation trophies)
Resume + portfolio builder
Installable as a PWA

The tech (for the curious)

Frontend: React + Vite → Netlify
Backend: Node.js + Express (ESM), MongoDB + Mongoose → Render
Realtime: Socket.io for live classes/chat, WebRTC (mesh) for video rooms & 1:1 calls
PWA: service worker for install + web push notifications
AI: Anthropic / Gemini / Groq for the interview, explainers and notes

A few things I learned (the hard way)

WebRTC across mobile networks is brutal. STUN alone isn't enough — symmetric NATs (hello, mobile data) need a TURN server. I spent way too long debugging "why won't the remote video show up."
Cache invalidation is genuinely one of the hard problems. A stale server cache + client cache had me chasing "why isn't my new logo showing" far longer than I'd like to admit.
Shipping beats perfect. It's not finished — but it's real, and it's out there.