Administered Oracle Cloud Infrastructure (OCI) environment, including:•Provisioning and managing: Compute instances, storage, networking resources, and OCI IAM policies.•Ensuring security and compliance: Implemented OCI best practices and configured OCI SMTP service for secure communication.•Monitoring and troubleshooting: Proactively monitored OCI environments, identified issues, and resolved incidents promptly.Linux administration experience, including:•Provisioning, managing, and maintaining Linux servers: Ensuring optimal performance, security, and availability.•Multi-tier environment management: Configuring and maintaining web servers, application servers, and database servers.•Automation: Developing and maintaining custom scripts for routine tasks.•Network integration: Collaborating with network engineers for seamless integration of Linux systems.•Patching and updates: Performing regular system updates and patches to maintain stability and address vulnerabilities.Database expertise:•Installed and configured: Oracle Database 19c standalone and RAC servers.Open-source experience:•Implemented: Galera 4 cluster with MySQL 8.4.2 wsrep Patch Version 26.20.Time synchronization:•Configured: NTP server with 2 nodes syncing time from time.saso.gov.sa and clients to sync from the new server.Cloud storage expertise:•Installed, configured, and maintained: Nextcloud File Share High Available solution.

•Installed Oracle RAC Database 19c (2-node) on RHEL 8.7 (64-bit), upgraded from Oracle 11gR2 to 19c.•Migrated Oracle WebLogic cluster and Oracle HTTP Server to NUTANIX.•Set up Oracle RAC Database 19c (two-node) on OEL 8.5 for Education Applications.•Designed and created databases, ensured security through user roles and grants, applied patches, and performed backups and recovery.•Monitored database health, performance tuning, and conducted ad-hoc backups.•Managed production, test, and development databases.•Experienced with EXADATA X7-2, including smart scan, HCC, and Flash cache; handled end-to-end patching and health checks.•Administered Nextcloud Global Scale Solution on RHEL 9.1, including provisioning and configuring Nextcloud servers, Redis, and MS Office Online Server Farm.•Configured proxy servers in DMZ and managed backup solutions.

Oracle RAC Database 11g R2 (11.2.0.4) Implementation & Administration:•Deployed two-node Oracle RAC on RHEL 7.2 (64-bit).•Configured network files, SCAN, DNS entries, and multipath device mapper for LUNs.•Set up Oracle ASM disks with udev rules and installed Oracle Grid Infrastructure and Database 11gR2.•Configured Clusterware Registry and Voting Disk backups.•Implemented RMAN backups using Veritas Backup Exec 16.WebLogic Server 12c (12.2.1) Implementation & Administration:•Installed and configured WebLogic Server 12c domain cluster with two nodes and managed servers on RHEL 6.4.•Set up Oracle HTTP Server 12c as a proxy for load balancing on Windows Server 2012 R2.•Configured connection pools and deployed applications on the WebLogic cluster.•Applied quarterly patches to Oracle Middleware.Database Upgrade and Migration:•Upgraded and migrated Oracle Database 10g (10.2.0.4) to 11g R2 on RHEL 6.4 from Solaris 10, using Cisco UCS hardware.

•Developed and implemented strategies for upgrading Oracle applications to higher versions.•Configured and installed Oracle 10g on Solaris 10, upgrading from Oracle 8.1.6 to 10g R2.••Migrated and reorganized databases from Windows to Solaris 10.•Collaborated with developers to resolve connectivity issues and verified database functionality, instances, listeners, and links.•Monitored Oracle Alert and Listener logs for bottlenecks and network issues.•Installed and configured Oracle NET on server and client machines.•Automated backups (logical, RMAN, and cold) using scripts and crontab on Solaris 10.•Analyzed and rebuilt fragmented indexes, optimized performance by gathering statistics, managing tables and indexes, and handling invalid objects.