Database Administrator
MongoDB
- Installed, configured, and maintained MongoDB standalone, replica sets.
- Monitored replication lag and resolved issues related to oplog, network delays, and performance bottlenecks.
- Created and optimized indexes, analyzed slow queries using profiling and execution plans.
- Implemented backup strategies using mongodump / mongorestore and automated scripts.
- Performed log rotation, storage management, and ensured system performance.
- Managed user roles, authentication, and database security.
- Configured monitoring dashboards and alerts using Prometheus and Grafana.
- Troubleshot production issues related to performance, replication, sharding, and storage.
- Supported application teams with query tuning and schema design best practices.
- Automated routine DBA tasks using shell scripts and crontab.
- Configured secure MongoDB application connection strings using SRV records, authentication mechanism and role-based access.