Slow endpoints, high CPU, memory creeping up, timeouts under load? I find the real bottleneck in your Go service and fix it, with numbers before and after.

Profiling with pprof and tracing to find hot paths

Database query and index review for PostgreSQL, MySQL or MongoDB (N+1s, missing indexes, connection pools)

Fixes for goroutine leaks, lock contention and allocation pressure

Caching or batching where it actually helps

A pull request with the fixes, plus a before/after benchmark

Scope — one service or a few critical endpoints. Bigger systems can be split into several rounds.

Delivery — about 5 days.