Rebuilding a Struggling Platform with Go
Re-architected a messy B2C restaurant platform in Go — cleaner backend, redesigned database, calm under load.
SAHLHUB is a B2C restaurant and order management system. The original system was unstable, hard to maintain, and struggled with even modest traffic.
Codebase was tangled, infra was over-complicated, and the platform could not absorb peak traffic without degradation. Maintenance was painful and cost was high.
Studied the existing system end-to-end, redesigned the architecture and database, then rebuilt core services in Go with AI-assisted development used carefully where it accelerated rather than replaced judgement.
The product became materially smoother, more reliable, cheaper to run, and structurally easier to extend.
- Rebuilt core backend in Go for throughput and clarity
- Replaced Firebase realtime dependency with GraphQL subscriptions
- Redesigned database schema and access patterns
- Optimized infrastructure cost and deployment topology
- Handled 1M+ requests with stable latency
Shows system rescue, re-architecture, backend ownership, and end-to-end product modernization.