Abu Hanif Staff Software Engineer HomeA pragmatic engineering retrospective on consolidating 11 distributed microservices into a single modular TypeScript repository.
# Why We Swapped Microservices for a Modular Monolith\n\nMicroservice complexity often exceeds business requirements for teams under 50 engineers. This retrospective details how consolidating 11 microservices into a unified TypeScript codebase reduced cloud hosting costs by $140,000 annually while improving release velocity.\n\n## 1. Network Overhead & Distributed Tracing\nInter-service gRPC and HTTP calls introduced compounding failure modes. A modular monolith restored in-process function calls with zero network serialization overhead.\n\n## 2. Developer Velocity\nSingle repository pull requests eliminated coordinated multi-service deployments and drift between API versions.
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