Manish Dahiya
Senior Oracle Database Administrator @Manipal Business Solutions
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WORK HISTORY
Senior Oracle Database Administrator @Manipal Business Solutions
Noida, IN
Major Duties & Responsibilities as Oracle DBAInstalled, configured, and administered Oracle 19c databases on both Linux and Windows environments ensuring high availability and performance.Performed backup & recovery using RMAN, implemented Data Guard (DR) solutions for business continuity.Applied Oracle PSU/CPU patches and performed database cloning for development and testing environments.Monitored and tuned database performance using AWR, ADDM, ASH reports, and optimized SQL queries.Managed user security, roles, privileges, and auditing for compliance and security.Implemented high availability solutions and conducted disaster recovery drills for critical clients.Automated database maintenance tasks and implemented proactive monitoring using scripts and OEM.Key Projects & Achievements1. Indian Energy Exchange (IEX)Successfully managed production Oracle databases supporting real-time trading operations with zero downtime during maintenance.Implemented Data Guard configuration to ensure disaster recovery readiness, reducing RTO and RPO significantly.Optimized complex queries and tuned database parameters, improving overall system performance by 25%.2. UFLEX LimitedLed the migration of Oracle databases to 19c from previous versions, ensuring smooth transition without impacting business operations.Designed and executed a robust backup and recovery strategy, ensuring 100% data protection during peak operations.Implemented performance tuning on large OLTP systems, improving transaction processing speed and reducing resource consumption.Success Highlights Delivered high-availability database solutions for mission-critical applications. Maintained 99.99% uptime for client databases with efficient monitoring and proactive maintenance. Enhanced query performance and reduced CPU utilization, resulting in cost savings.
EDUCATION
Manav Rachna International Institute of Research & Studies
Bachelor of Technology - BTech
ABOUT MANISH DAHIYA
As a Senior Oracle Database Administrator, I am passionate about ensuring data integrity, high availability, and optimal performance for mission-critical systems. With over 2 years of hands-on experience managing Oracle 12c and 19c databases across diverse industries, I specialize in implementing robust Data Guard and RMAN backup solutions, seamlessly executing database upgrades, and driving performance tuning initiatives that result in measurable business impact.At Manipal Business Solutions, I have delivered 99.99% uptime for client databases and led key projects that improved system performance by up to 25%. My expertise extends to disaster recovery planning, automation of maintenance tasks, and proactive monitoring using OEM and custom scripts.Known for my attention to detail and client-focused mindset, I thrive in fast-paced environments and am always seeking new ways to optimize database operations. I am open to connecting with fellow professionals, exploring new opportunities, and sharing best practices in Oracle DBA.Let\'s connect!
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