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Job Description: PostgreSQL Database Administrator
About The Role
We are seeking an experienced
PostgreSQL Database Administrator
to support and maintain enterprise AWS database infrastructure. This role is primarily
support and advisory
in nature — working closely with application teams to troubleshoot issues, implementing changes, guide migrations, and ensure database stability. The idóneo candidate brings deep PostgreSQL architecture knowledge, hands-on AWS experience, and strong operational discipline.

Key Responsibilities
- Administer and maintain PostgreSQL and RDS PostgreSQL instances across dev, test, QA, and production environments




- Support application teams in troubleshooting database issues, replication failures, connectivity problems, and performance degradation
- Assist app teams in resolving AWS DMS issues including task failures, CDC lag, table errors, and cutover coordination
- Deploy and manage database infrastructure using AWS CloudFormation templates
- Monitor database health, set up alarms, and analyze logs using Amazon CloudWatch and CloudWatch Log Insights
- Audit database activity and support compliance reviews using AWS CloudTrail
- Troubleshoot and resolve logical replication issues including lag, slot bloat, and subscription failures
- Manage roles, users, schemas, and privileges across multiple databases and environments
- Tune query performance using execution plans, auto_explain, parameter group optimization, and session management
- Raise, track, and resolve incidents and change requests through ServiceNow (ITSM)
- Perform

📌 Postgres SQL Database Administrator (Ciudad de México)
🏢 Cognizant
📍 Ciudad de México