Technical Project Manager / Database Migration Lead / PostgreSQL DBA at Quadrant Technologies (2020-04 – Present)
Led database migration, architecture, and platform operations for Microsoft's CosmosDB program and multiple enterprise database systems.
- Led end-to-end migration of enterprise database systems from Oracle to PostgreSQL, ensuring 100% data integrity and minimal downtime across production environments.
- Analysed Oracle schemas, stored procedures, triggers, and functions to design equivalent, performance-optimized PostgreSQL structures.
- Built and validated custom Python/SQL migration and reconciliation scripts; partnered with DevOps to update ORM configs and CI/CD pipelines for PostgreSQL compatibility.
- Improved post-migration query performance through PostgreSQL indexing strategy and query optimization.
- Acted as primary stakeholder point of contact on the CosmosDB program spanning capacity management, reliability engineering, security compliance, and modernization across global production, canary, and sovereign environments.
- Led triage and root-cause discussions across global, cross-functional teams; owned delivery commitments end-to-end from investigation through production fix.
- Owned high-availability PostgreSQL architecture (streaming replication, WAL archiving, DR configuration via rep-manager) for Microsoft VLDBs handling high-volume, sensitive transactional data.
- Directed backup/recovery strategy (pg_dump, pg_basebackup, PITR) and led patch upgrade governance across production and test environments.
- Led and coordinated Proof-of-Concept initiatives on Microsoft Fabric (Data Factory, Lakehouse, Warehouses, Power BI) and AI use cases to evaluate modern data platform capabilities.
Senior Data Analyst at Quadrant Technologies
Client: SingleStore
- Mentored a team of 4 junior database engineers on SingleStore architecture, query optimization, and performance tuning best practices.
- Designed reusable stored procedures and database objects supporting high-volume financial reporting and BI workloads; built observability tooling with Prometheus/Grafana.
- Implemented data governance controls (row-level security, column masking) in partnership with security and compliance teams.
Incident Management Support Lead / Developer Lead / L2-L3 Support at Tech Mahindra (2008-05 – 2020-04)
Clients: Microsoft, Cenveo
- Designed and delivered high-resilience database solutions achieving 99.99% availability for systems processing billions of dollars annually across 50+ e-commerce applications.
- Led SQL Server-based data warehouse and ETL architecture (SSIS/SSRS) for enterprise reporting and decision-support systems, including full migration from legacy SQL/Windows platforms.
- Executed quarterly disaster-recovery failovers (SQL, Web, API) and implemented Always On, Log Shipping, and Database Mirroring for high availability.
- Directed Microsoft's fiscal-close database operations and led major incident response, mentoring L1–L3 teams on application and database troubleshooting.
Team Member — Data Migration at Alliance Global Services (2006-05 – 2008-05)
Client: Dun & Bradstreet
- Analysed legacy table structures and authored the migration plan and scripts for Dun & Bradstreet's ePlatform e-commerce data migration.
- Built SSIS transformations, event handlers, and control-flow logic; validated data accuracy and executed the live production migration.
