Sivakumar Gandhirajan
Azure Database Administrator AssociateAzure Administrator AssociateAzure AI FundamentalsGoogle Cybersecurity ProfessionalMongoDB Atlas AdminSnowPro Associate
Database Engineer
- Modernized 30+ SQL servers/400+ DBs to SQL Server 2022; Always On AG, TDE, TLS 1.2+; >$70K/year savings.
- Migrated a 5-node MariaDB Galera cluster to AWS RDS via Terraform; low-downtime cutover; ~$35K/year cost reduction.
- Enabled hybrid governance with Azure Arc (ATP, Vulnerability Assessment, best-practice checks) across on‑prem DBs.
- Architected Azure PostgreSQL Hyperscale (Citus) MPP for geospatial analytics; ARM-provisioned and tuned for bursty workloads.
Featured Projects
- Open Source CompassA RAG platform using MongoDB vector indexes for semantic search and analytics.
- Home Buyer AgentAgentic workflow to assist home buyers with data-driven insights and decision support. leverages Google BigQuery, Firestore and Vertex AI.
Recent Impact
Database Engineer
- Modernized an enterprise SQL Server estate (30+ servers, 400+ DBs) to SQL Server 2022; implemented Always On AG, TDE, TLS 1.2+, delivering >$70K/year in savings and stronger RTO/RPO.
- Orchestrated a 5-node MariaDB Galera migration to AWS RDS MariaDB using Terraform IaC; minimized downtime and reduced costs by ~$35K/year.
- Enabled hybrid governance with Azure Arc: ATP, Vulnerability Assessment, and best-practice checks across on‑prem DBs for a unified, secure posture.
- Designed Azure PostgreSQL Hyperscale (Citus) for geospatial risk modeling—MPP cluster provisioned with ARM, tuned for bursty analytical workloads.