Summary
Overview
Work History
Education
Skills
Technical Summary
Certification
Websites
Disclaimer
Timeline
Generic

YUVARAJ VELUMANI

CHENNAI

Summary

Oracle Database Administrator with 3+ years of experience managing and optimizing Oracle 10g, 11g, 12c, and 19c databases. Skilled in RAC, ASM, RMAN backup & recovery, Data Guard, and performance tuning to ensure high availability and data integrity. Proficient in SQL, PL/SQL, and Shell Scripting for automation and operational efficiency. Experienced in database troubleshooting, query optimization, and system performance tuning to support business continuity. Strong expertise in backup strategies, disaster recovery, and high-availability configurations for missioncritical systems.

Overview

4
4
years of professional experience
1
1
Certification

Work History

Oracle Database Administrator

Proton Cloud Technology Pvt Ltd
CHENNAI
12.2021 - Current

Project Overview:

Managing mission-critical Oracle databases for telecom and enterprise applications, ensuring high availability, performance optimization, and disaster recovery. Supporting key telecom applications such as SCP, HLR, VAS, RRBS, DNG, PCRF, IMS, SMSC, ESME, USSD across Australia, USA, and Europe.

Roles & Responsibilities:

  • Supporting key telecom applications such as SCP, HLR, VAS, RRBS, DNG, PCRF, IMS, SMSC, ESME, USSD across Australia, USA, and Europe
  • Managing RMAN backups, database cloning, and schema-level exports/imports
  • Monitoring database CPU, I/O, TPS and troubleshooting performance using Ops manager and DPA tools
  • Generating and analyzing AWR reports for query tuning
  • Configuring and managing Data Guard for high availability and disaster recovery
  • Managing ASM storage, adding/removing disks, and optimizing utilization
  • Implementing recovery strategies in RAC environments for availability
  • Performing switchover and failover using DGMGRL and SQL commands
  • Plintron Mobility Solutions
  • Managing mission-critical Oracle databases for telecom and enterprise applications, ensuring high availability, performance optimization, and disaster recovery
  • Supporting key telecom applications such as SCP, HLR, VAS, RRBS, DNG, PCRF, IMS, SMSC, ESME, USSD across Australia, USA, and Europe

Key Achievements:

  • Optimized Query Performance: Reduced execution time by 50% through tuning
  • Disaster Recovery Implementation: Configured Data Guard, ensuring 99.9% uptime
  • Database Cloning & Migration: Led 15+ production database cloning activities
  • Backup Automation: Developed Bash scripts reducing manual effort by 60%

Customer Support Associate

Amazon-Sutherland Global Services
CHENNAI
06.2021 - 12.2021
  • Provided customer support for Amazon India, handling queries related to orders, returns, and accounts.
  • Developed strong communication and problem-solving skills.

Education

MBA - International Business

Pondicherry University & Loyola College Society Twinning Programme
01.2024

BE - Electronics and Communication Engineering

Panimalar Institute of Technology
01.2021

Skills

  • Oracle Versions: 10g, 11g, 12c, 19c (SE2, XE, OEM)
  • Database Administration: Installation, configuration, and maintenance of Oracle databases
  • High Availability & Clustering: Oracle RAC, ASM, Grid Infrastructure, Data Guard
  • Backup & Recovery: RMAN, Data Pump, Cold Backups, Flashback Technology
  • Performance Tuning: AWR, ASH, ADDM, SQL Tuning, Indexing, Execution Plans
  • Scripting & Automation: Shell Scripting (Bash), Cron Jobs, SQL, PL/SQL
  • User & Security Management: Role-based access control, TDE, Oracle Wallet, Auditing
  • Networking & Connectivity: Configuring tnsnamesora, listenerora, DB Links
  • Patch Management: CPU/PSU patches, database upgrades, patch testing
  • Storage Management: Tablespace management, Partitioning, ASM disk groups
  • Replication & Cloning: Schema refresh, Database Cloning, Logical/Physical Replication
  • Monitoring & Troubleshooting: Alert logs, Session monitoring, Deadlock resolution
  • Tools & Utilities: OEM, ADRCI, DBCA, NETCA, SQL*Plus, SQL Loader
  • Operating Systems: Oracle Linux, Red Hat Linux, Windows Server

Technical Summary

  • Installed, configured, and administered Oracle 10g, 11g, 12c, 19c on Linux & Windows.
  • Expertise in Oracle architecture, clustering, ASM, RAC, and OEM (Oracle Enterprise Manager).
  • Hands-on experience in tablespace management, user/profile management, and security administration.
  • Configured and managed Oracle Data Guard (Physical & Logical Standby) for disaster recovery.
  • Experience in RAC (Real Application Clusters) setup, failover, and performance tuning.
  • Performed standby database build and synchronization for high-availability systems.
  • Implemented RMAN backup strategies (incremental, full, PITR, Data Pump, cold backups).
  • Performed logical backups using Export/Import, Data Pump.
  • Configured and restored backups using RMAN & Data Pump utilities.
  • Analyzed AWR, ASH, and ADDM reports for query optimization and performance tuning.
  • Identified and resolved high CPU, I/O, and bottleneck queries with indexing and SQL tuning.
  • Monitored system performance and resolved session blocking, deadlocks, and wait events.
  • Administered user creation, roles, privileges, and password management.
  • Configured database links, synonyms, and materialized views for distributed environments.
  • Implemented profile-based security policies and auditing mechanisms.
  • Managed ASM disk groups, performed disk additions/removals, and optimized storage utilization.
  • Performed tablespace and partition management to optimize storage and performance.
  • Installed and patched Oracle 10g/11g/12c/19c RDBMS.
  • Monitored database health, performance metrics, backups, and logs on a daily basis.
  • Developed Shell scripts & cron jobs for automating database tasks and log monitoring.
  • Worked with Ops manager, GTAC, and DPA tools for proactive database monitoring and alerting.

Certification

Oracle Database Administration 2019 Certified Professional - DBA 19c OCP, 1Z0-082: Oracle Database Administration I, 1Z0-083: Oracle Database Administration II

Disclaimer

I hereby declare that the information provided above is true and correct to the best of my knowledge.

Timeline

Oracle Database Administrator

Proton Cloud Technology Pvt Ltd
12.2021 - Current

Customer Support Associate

Amazon-Sutherland Global Services
06.2021 - 12.2021

MBA - International Business

Pondicherry University & Loyola College Society Twinning Programme

BE - Electronics and Communication Engineering

Panimalar Institute of Technology

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