Shinkansen CommerceHigh-performance e-commerce platform

Spec-first polyglot microservices architecture for Japanese market

🚄 Spec-First Architecture

Protocol Buffers as single source of truth. Auto-generated code, type-safe communication across Go, Rust, Python services.

Konbini payments, point systems, same-day delivery. Designed for Japanese e-commerce market.

7 loosely-coupled services communicating via gRPC. Independent deployment, horizontal scaling.

Redis caching, connection pooling, optimistic locking. Handles 10K+ concurrent requests.

JWT authentication, rate limiting, circuit breakers. Kubernetes deployment, observability stack.

Prometheus metrics, Grafana dashboards, Jaeger tracing. Centralized logging with request IDs.