4+ years of experience managing PostgreSQL databases in production environments
Strong knowledge of SQL query optimization, indexing strategies, and PostgreSQL performance tuning
Design and maintain highly available, fault-tolerant systems with minimal downtime
Experience supporting mission-critical 24/7 production systems with on-call or incident response participation
Hands-on experience with AWS services (EC2, RDS, EBS, S3, IAM) and PostgreSQL replication, PITR, and HA solutions (Repmgr, Patroni, ProxySQL, or similar) rather than only basic replication expertise or potential future adoption of these tools in a hypothetical project?