event-sourcing-architect

Design an event store with CQRS by defining aggregate boundaries, specifying immutable event types, and implementing command handlers with read-model projections to orchestrate complex domain workflows across microservices.

Handle event versioning and schema evolution by applying strategies for immutable events within your event store, ensuring backward compatibility as domain models and aggregate boundaries evolve over time.

Saga orchestration in event-sourced systems coordinates long-lived processes by routing immutable events through process managers, ensuring eventual consistency across distributed aggregates and microservices.

Implement snapshotting for long-lived aggregates when replaying immutable events from the event store becomes a performance bottleneck, restoring aggregate state from periodic snapshots to reduce load times.

Event sourcing supports temporal queries and auditability by storing immutable events in an append-only event store, allowing you to reconstruct any past state for compliance reporting and historical analysis.

Limitations of CQRS with event sourcing include increased complexity in managing eventual consistency between command handlers and read-model projections, alongside the overhead of maintaining immutable event schemas.