DeepNoMind

Jul 18, 2026 · Backend Development

How Twilio Segment Replaced Hundreds of Microservices with a Single Monolith

The Twilio Segment team migrated their server‑side event‑forwarding infrastructure from a sprawling microservice architecture to a single monolithic service, detailing the performance bottlenecks, operational overhead, testing challenges, trade‑offs, and productivity gains that drove the decision.