● CASE STUDY · IDENTIUM TECH SOLUTIONS
Vizha
A vertically-integrated event platform: one data model, gate to wallet.
OVERVIEW
Vizha is a vertically-integrated event platform on Identium's RFID/NFC stack. Organizers publish events and sell tickets, attendees carry RFID/NFC credentials, and the venue runs access control, cashless wallet payments and live people/asset tracking, all reading and writing one shared data model. Separate mobile apps cover the attendee, vendor and staff personas.
THE CHALLENGE
Event tech is usually five vendors duct-taped together (ticketing, access, payments, tracking, analytics), and every handoff loses data. The goal was a single platform where a tap at the gate, a wallet payment and a dashboard chart are literally the same record, designed and architected by one person from the ground up.
WHAT I BUILT
- 01
Turborepo monorepo with end-to-end type safety: a NestJS + tRPC API consumed by a Next.js 15 (App Router / RSC) web app and Expo mobile apps. One schema, zero API drift.
- 02
RFID/NFC access control over MQTT to gate readers, with the same @identium/reader SDK that powers the desktop apps and offline-tolerant scan queues.
- 03
Cashless wallet with double-entry ledger semantics, refundable balances and per-vendor settlement.
- 04
Serious engineering hygiene from day one: GitHub Actions CI, Husky + commitlint + lint-staged, semantic versioning, Docker Compose, and a fully documented, contrast-checked design-token system across every surface.
OUTCOME
A complete event operating system, architected end to end. Proof that one engineer can design and build what usually takes a vendor ecosystem.
GALLERY
