Real-time Marketplace Infra
Sub-second bidding engine for high-value assets.
The Challenge
Race conditions in the previous system led to double-sold items and user frustration during high-traffic auctions.
The Solution
Implemented an atomic transaction engine and optimistic UI updates. Used WebSockets for instant bid propagation.
Architecture
Core EngineGo / gRPC
StateRedis Cluster
ClientReact Native / Web
Key Outcomes
- 0 Race Conditions
- 500ms Bid Confirmations
- $50M+ Transacted
Tech Stack
Go
gRPC
Redis
Next.js
PostgreSQL