APIs
Delego — Mumbai MUN app
The delegate companion app for Mumbai MUN, one of India's largest — I built the FastAPI backend behind it, shipped to the App Store and Play Store for 600+ delegates.
Mumbai MUN is one of the largest Model UN conferences in India — hundreds of delegates, dozens of committees, three days of chaos to coordinate. Delego is the app that runs it, and I built the backend the whole thing leans on. It shipped to the App Store and Play Store and carried the conference for 600+ delegates.
What it does
The Flutter app is the delegate’s companion — schedule, committee study guides, venue info, sponsors, and a QR identity used at entry and meals. My side is the API behind all of it:
- Passwordless auth — magic links and one-time codes over JWT, so delegates don’t manage another password.
- Delegate profiles & assignments — registration, committee/country allocations, and organizer-side verification.
- QR identity — per-delegate QR generation and scan endpoints powering check-in and food distribution, tracked in real time.
- Organizer tooling — CSV import/export, manual verification, rate limiting, and scheduled database backups.
Why it had to be boring and reliable
An event backend gets exactly one chance — the conference happens on a fixed date whether the API is ready or not. So the design optimized for predictable: a typed FastAPI surface the mobile team could generate against, validation at the boundary, self-generating OpenAPI docs, and rate limiting so a room full of delegates hammering check-in at 9am doesn’t take it down.
An event backend’s whole job is to be invisible on the one day it matters. This one was — the source is the
mundraservice linked above.
Want something like this built?
I take on freelance backend and API work — auth, payments, media, and the security review to go with it.
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