Do you have experience in database cluster administration, configuring backup policies?

Yes, I have experience in administering database clusters and configuring backup policies.

Specifically, I have been involved in:

• Setting up replication and load balancing between cluster nodes to ensure high availability.
• Defining and automating backup schedules considering RPO (Recovery Point Objective) and RTO (Recovery Time Objective) requirements.
• Testing recovery from backups to verify data integrity and reliability.
• Monitoring cluster health and responding promptly to failures.

For example, for PostgreSQL, I used tools like pg_basebackup and pgBackRest to create incremental and full backups, as well as configuring retention and rotation policies for backups.