[Hiring] PostgreSQL Database Administrator @American IT Systems

Role Description

We are seeking a highly experienced PostgreSQL Database Administrator to design, implement, and maintain robust, scalable, and secure database environments. The ideal candidate will have a strong background in performance tuning, high availability architecture, and enterprise-scale database operations, with the ability to mentor junior team members and drive best practices across the organization.

Key Responsibilities

• Install, configure, upgrade, and maintain PostgreSQL database instances across production, staging, and development environments
• Design and implement backup, recovery, and disaster recovery strategies
• Monitor database performance, identify bottlenecks, and optimize queries, indexes, and configurations
• Implement and manage high availability (HA) and replication solutions
• Ensure database security, including access controls, encryption, and compliance with regulatory standards
• Plan and execute database migrations, upgrades, and capacity planning
• Automate routine DBA tasks using scripting tools
• Collaborate with development teams on schema design, query optimization, and data modeling
• Troubleshoot and resolve production database incidents, often under time-sensitive conditions
• Maintain documentation for database architecture, procedures, and runbooks
• Participate in on-call rotation for critical production support
• Mentor junior DBAs and provide technical guidance across teams

Qualifications

• 8+ years of hands-on experience administering PostgreSQL in production environments
• Strong expertise in PostgreSQL architecture, internals, and performance tuning
• Proven experience with replication (streaming, logical), clustering, and high availability solutions (e.g., Patroni, repmgr, Pgpool-II)
• Deep understanding of backup and recovery tools (pg_dump, pg_basebackup, pgBackRest, Barman, WAL archiving/PITR)
• Expertise in query optimization, indexing strategies, and EXPLAIN/ANALYZE plan tuning
• Solid experience with database security: roles, permissions, SSL/TLS, encryption at rest/in transit
• Strong scripting skills (Bash, Python, or Perl) for automation
• Experience with monitoring tools (pgAdmin, pg_stat_statements, Prometheus/Grafana, Datadog, or similar)
• Solid understanding of SQL and PL/pgSQL for stored procedures, triggers, and functions
• Experience with version upgrades and major migration projects
• Strong troubleshooting skills for performance, connectivity, and data integrity issues

Preferred Skills

• Experience with cloud-managed PostgreSQL services (AWS RDS/Aurora)
• Experience with Infrastructure as Code tools (Terraform, Ansible)
• Knowledge of other RDBMS/NoSQL systems (MySQL, MongoDB, Oracle) for cross-platform environments
• Exposure to CI/CD pipelines and DevOps practices
• Experience with data warehousing or ETL pipelines
• PostgreSQL certification (e.g., EDB Certified PostgreSQL Associate/Professional)
• Familiarity with connection pooling tools (PgBouncer, Pgpool-II)
• Knowledge of PostGIS or other PostgreSQL extensions

Education

• Bachelor's degree in computer science, Information Systems, or a related field (or equivalent practical experience)