Portfolio - Ray Liu

What this machine shows Green blocks are buy orders, red blocks are sell orders. Both ride into the hopper, get matched inside, and leave as a gold trade event.

High-Performance Cryptocurrency Exchange Backend

Backend · 2026

A distributed matching system built in Go, split into gateway, order-service, matching-engine, and market-data-service, with Transactional Outbox, leader election, batch ingestion, and architecture-level load validation.

GoPostgreSQLRedisKafkaTransactional OutboxPrometheusk6

Demo GitHub · Frontend GitHub · Backend Full write-up

Matching Engine

High-Performance Cryptocurrency Exchange Backend