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Sayantan
Oracle DBA & Cloud Infrastructure Specialist with 15+ years in Data Management
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Competencias
Managed complex Oracle environments, including RAC, Data Guard, and RMAN frameworks, ensuring performance and uptime.
Automated cloud deployments with Terraform and Ansible across AWS and Google Cloud platforms for scalable solutions.
Administered multiple Linux platforms (Red Hat, Oracle Linux, Ubuntu) supporting critical database operations.
Implemented and maintained DR strategies using Data Guard, RAC, and backup/recovery frameworks, ensuring system resilience.
Led database migrations and optimized performance through tuning and capacity planning for high-demand environments.
Educacion
Idiomas
Resumen
Seasoned professional with over 15 years of expertise in Oracle database management, cloud infrastructure automation, and Linux administration. Proven track record in incident resolution, system upgrades, and optimizing enterprise database environments. Skilled in implementing high-availability...
Logros Clave
- Resolved 15+ critical incidents in a 125 TB environment with 456 databases, ensuring high availability.
- Led enterprise Oracle Linux migration across multiple production servers, facilitating advanced database features.
- Designed and executed database upgrade workflows from Oracle 12c to 19c, improving operational efficiency by 35%.
Experiencia
Lead II Cloud Infrastructure Services
Troubleshooted and resolved complex Oracle GoldenGate Extended Architecture for Grid/Cluster Integration & Bi-Directional replication, Oracle RAC, Oracle Datagurd issues, facilitating advanced features like cross-instance recovery and distributed transactions; personally addressed and...
Senior Subject Matter Expert
Orchestrated enterprise-wide Oracle Linux migration (7.9 to 8.2) across 1+ production servers in VM environment for Oracle 19c migration, for facilitating advanced features., Engineered comprehensive RMAN backup/recovery framework that reduced system downtime by 5%.
Senior Project Scientist
Architected containerized Linux infrastructure supporting 10+ research projects using Docker., Administered MySQL databases serving 50+ daily users with 99.9% availability., Modernized network services (DNS, DHCP, NAS, NFS), enhancing reliability by 40%., Automated routine maintenance tasks through...
Project Consultant
Developed and launched institutional website, increasing online engagement by 20%., Optimized NIC Cloud infrastructure for 200+ concurrent users, reducing costs by 20%., Automated routine maintenance tasks through Bash scripting, saving 15+ hours weekly.
Principal Consultant - Infrastructure Sys Engineer
Managed enterprise Oracle database environments for healthcare clients, ensuring performance and stability of 15+ critical production systems as business owner., Diagnosed and resolved complex data replication and extraction failures in Oracle GoldenGate environments., Optimized database...
Oracle EBS Consultant
Executed Oracle EBS upgrade for Kolkata Metrorailway Corporation serving 5T+ internal employee., Integrated GST compliance module for Adamas University ensuring regulatory adherence., Provided expert DBA support for Renata Ltd through KPMG partnership., Optimized Exadata storage performance through...
Oracle Database Administrator
Rectified system issues for telecom databases supporting Ericsson’s subscriber network., Maintained Oracle 12cR1 with Data Guard ensuring 24/7 availability.
Software Engineer
Facilitated Srei Finance database migration to TCL Cloud (Oracle EBS R12)., Vulnerability management., Managed the full lifecycle of a mission-critical 5TB Exadata X4-2 platform supporting Oracle Database 11gR2, implementing scalable storage strategies to accommodate 40% annual data growth.
Database Administrator
Administered Linux-based Oracle databases for IBM India’s internal systems.
Assistant Officer
Optimized Oracle EBS R12 performance on Oracle 11gR1/R2 with Data Guard., Configuring DR during DR activities., Optimized Oracle 11gR1/R2 EBS with Data Guard performance using AWR/ASH, SQL profiles, and partitioning, cutting batch runtime from 6 h to 2 h.