Why We Chose Go for Our Payment Gateway

When we started building RohoPay, we evaluated several languages for our core payment engine. The requirements were clear: excellent concurrency, fast compilation, simple deployment, and a strong standard library.

Go stood out for its goroutine-based concurrency model. Payment processing involves many concurrent operations — calling provider APIs, writing to databases, sending webhooks, and updating caches. Go handles this elegantly.

Compilation speed matters more than you might think. Our CI pipeline builds and tests the entire codebase in under two minutes. Fast iteration cycles let us ship features quickly and fix bugs promptly.

Operational simplicity was the deciding factor. Go produces a single static binary with no runtime dependencies. Deploying to production means copying one file and running it. No virtual environments, no dependency conflicts.