Tempo API

A REST and webhook API that syncs class schedules between a studio app and three calendar providers.

The problem

Students saw outdated class times because each calendar integration polled on its own schedule.

One event pipeline with idempotent webhooks, a Redis queue for retries and an OpenAPI contract the mobile team generated clients from.

Backend developer in a team of three.

Sync delays went from hours to seconds for the providers that support push.