The Picnic social platform served 1M+ users across a graph of Go microservices behind a GraphQL gateway. The latency win came from a counter-intuitive move: fewer services, tighter contracts.
100K+ votes, 10K+ concurrent users during a live AFL Brownlow Medal broadcast. The architecture: Go on Cloud Run, GraphQL + gRPC behind a CDN, vote integrity through Cloud KMS + Security Command Center. Notes on what makes a live-broadcast load shape unusual.