Have you worked with Camunda as an orchestrator? What is the Saga pattern?

Yes, I have worked with Camunda as a business process orchestrator. Camunda allows modeling, executing, and monitoring processes using BPMN, which simplifies managing complex business logic and integrations.

The Saga pattern is a template for managing distributed transactions in a microservices architecture. Instead of one large transaction covering all services, Saga breaks the process into a series of local transactions, each with a compensating action in case of an error. This increases reliability and data consistency without locks.

Example: when placing an order in an online store, Saga may include reserving the product, deducting money, and creating a delivery. If an error occurs at any step, previous actions are compensated (for example, the product reservation is canceled).