Cadence

An open source orchestration engine that executes stateful business logic as resilient, fault-tolerant workflows.

Uber built Cadence to handle the heavy lifting of distributed state. It eliminates the need for custom retry logic and external state stores (like Redis or local databases) by persisting the entire call stack. Your code becomes a fault-tolerant workflow that survives process crashes and network timeouts. Use it for high-stakes operations: think automated infrastructure provisioning or complex payment pipelines. It scales to millions of concurrent executions while providing a clear audit trail for every step taken.

https://cadenceworkflow.io