Do you have experience with geographically distributed systems?

Yes, I have experience working with geographically distributed systems. In such systems, components and services are located in different data centers or regions, which requires solving specific challenges:

• Data consistency: Using consensus algorithms, eventual consistency, or distributed transactions.
• Network latency and reliability: Optimizing interaction between nodes, handling failures and retries.
• Load balancing and fault tolerance: Using replication, sharding, and failover mechanisms.
• Monitoring and logging: Centralized collection of metrics and logs for analyzing the distributed system's operation.

For example, in one project, I participated in developing a microservices architecture where services were deployed across multiple AWS regions. To ensure data consistency, patterns like CQRS and event sourcing were used, and for communication, asynchronous message queues with delivery guarantees were employed.