At Microsoft Azure, I designed state-machine REST APIs and a progression engine that powered about 6K daily deployment-stage transitions across 23 internal teams. I also traced a production latency bottleneck and helped reduce weighted-average API response time by about 40%.
I owned the backend migration of Ev2 Artifact Registration to Managed SDP and made version reuse idempotent, reducing duplicate-registration feedback latency by more than 98%. At Amazon, I built Java backend services for third-party Prime merchant workflows and supported a Japan launch with an item-classification microservice.

