
Mir Shahrukh
Senior DBA SQL Server, PostgreSQL, MySQL, Oracle Performance Tuning
Skills

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Work experience
Senior Database Administrator / Consultant
VentureDive • Full-time
Mar 2026 - Oct 2026 • 7 mos
• Senior DBA and consultant for international clients across Latin America, the UAE, Oman and Saudi Arabia. • Manage 50+ production database servers across Oracle, SQL Server, PostgreSQL, MySQL, MariaDB and MongoDB • Performance tuning of queries, indexes and server parameters, raising throughput by up to 75% on client systems • High availability and disaster recovery: Oracle Data Guard, PostgreSQL streaming replication, MySQL Group Replication / InnoDB Cluster, MongoDB replica sets • Migrate large MySQL databases to AWS RDS and upgrade MongoDB clusters with minimal downtime • Automate DBA work and monitoring with PowerShell (dbatools), T-SQL, Bash and Python, including SQL Server on Azure • Patching, upgrades, root-cause analysis on incidents, and written runbooks
Senior Database Administrator
NayaPay • Full-time
Jul 2024 - Feb 2026 • 1 yr 7 mos
• Ran the production databases behind a regulated, high-volume digital payments platform at 99.9% uptime. • Led a MySQL-to-MongoDB migration covering schema mapping, data accuracy checks and restore testing after cutover • Tuned the payment databases, raising transaction throughput by 25% and cutting slow-query response times by 40% through query optimization, indexing and partitioning • Designed automated RMAN backup and restore workflows, with Data Pump backups and Data Guard for disaster recovery • Built fully automated daily health check reports for SQL Server, PostgreSQL, MySQL and MariaDB, covering availability, backups, capacity and performance • Automated health checks, log analysis and backup verification, cutting manual work by 40% • Integrated real-time Apache Kafka streaming with MongoDB and Oracle to support fraud detection.
Junior Database Administrator
Burki Technologies • Full-time
Mar 2023 - Apr 2024 • 1 yr 1 mo
Installed, configured, and maintained Oracle and SQL Server databases across production and UAT environments. • Monitored health with Oracle Enterprise Manager and AWR reports, identifying and resolving performance issues. • Supported implementation of Oracle Active Data Guard; performed backups, restores, and patching; managed authentication, roles, and privileges.