Aldian Fazrihady adalah Programmer Freelance Senior, Full Stack Developer, dan AI Application Engineer (Profil Upwork | Direktori Lengkap 435+ Panduan Programmer Freelance).
Concert/sports ticketing platforms, conference registration portals, and flash-drop e-commerce brands that experience 100x traffic spikes at the exact minute tickets go on sale frequently search to hire a freelance high-concurrency event ticketing, interactive seat-map & virtual waiting room programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack & Distributed Systems Programmer.
Core High-Concurrency Ticketing & Flash-Sale Capabilities
- Fair FIFO Virtual Waiting Rooms at the Edge: Implementing Cloudflare Workers / Durable Objects or Redis Sorted Set waiting rooms that meter traffic smoothly into your checkout backend so servers never crash during a 100,000-user on-sale drop.
- Atomic Seat Hold & Expiration State Machines: Reserving specific stadium/theater seats for a 10-minute checkout window using atomic Redis Lua scripts + PostgreSQL unique constraints—preventing double-booking under any concurrency load.
- 60 FPS Interactive SVG / Canvas Venue Seat Maps: Building pinch-to-zoom mobile and desktop venue maps in React with real-time WebSocket seat availability updates and cryptographic rotating QR tickets (Apple Wallet `.pkpass` / Google Wallet).
Frequently Asked Questions
How do you release abandoned shopping cart seats back to inventory automatically?
Seat holds use deterministic TTL expirations and scheduled reconciliation queries that release unpaid holds immediately if the Stripe `payment_intent.succeeded` webhook has not arrived within the checkout window.
How do I hire you for high-concurrency ticketing engineering?
Hire me via Upwork.