Event Platforms & Concurrency

ROX Platform

ROX Platform interface

Company

Jazz World

Role

Senior Full Stack Product Engineer

Timeline

2025 - Present

Links

AwardsGold

PASHA ICT Awards 2026

Ways to pay3

JazzCash, Easypaisa and cards

Gate viewLive

Entries, sales and revenue for every gate as the event runs

In short

ROX sells tickets and runs entry for big live events, tournaments and academies. It won Gold at the PASHA ICT Awards 2026.

The problem

Big events sell out in minutes, then thousands of people arrive at once, often where mobile signal is weak. Fake and copied tickets were a risk, and organisers couldn't see sales and entries in one place.

What I did

I built the public website and the admin portal end to end. Each ticket carries a secure code the gate can check even without internet, and each one only works once. Organisers see sales, coupons and entries for every gate as it happens. I also built payments (JazzCash, Easypaisa, cards) and ROX Vault, where users buy discount bundles.

The result

  • Gold, PASHA ICT Awards 2026
  • Gates keep moving when the network drops
  • Live sales, entries and revenue for each event and gate
Technical detailsFor engineers: how it's built and what it runs on

Approach

Built the full animated public site and the ROX Management Portal end to end: ticket sales, coupons, gate-by-gate entry tracking (who entered, which gate, when), and live revenue/cost/profit insights per event. Also built the payment service and ROX Vault, where users buy vaults for vouchers and discounts. Engineered an offline-first QR scanning flow with local cryptographic signature verification, backed by a NestJS/MySQL transactional layer to prevent double-booking during high-concurrency sales.

Architecture

  • NestJS core backend running MySQL 8 with custom transaction pooling
  • ROX Management Portal for sales, coupons, gate entry logs, and revenue insights
  • Local offline cryptographic ticket signature generation (HMAC/SHA256)
  • Payment gateway routing engine with automated billing fallbacks, plus ROX Vault

Highlights

  • Admin portals with QR-based ticket verification and scan enforcement
  • Fraud prevention workflows and auditability for high-traffic events
  • Real-time dashboards for ticket sales, tournaments, and academy performance
  • Responsive public landing pages with performance-focused animations
  • Role-based access control and structured moderation pipelines

Stack

ReactNext.jsNestJSTypeScriptMySQLREST APIsTailwind CSS

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