Omar Benjamin Email & Phone Number

New York, Ny, Us

Chiyoda-Ku, Tokyo, Jp

• Responsible for the support and configuration of Linux hybrid cloud infrastructure via VMWare and Nutanix.• Infrastructure Management via RedHat Satellite; manage subscriptions via Customer Portal and security updates.

Armonk, New York, Ny, Us

• Configuring, troubleshoot and managing 3.5k+ Linux, Solaris and AIX servers for CalCloud and HealthNet Account. Primarily responsible for Tier 2 and Tier 3 support and performance tuning for Linux system environment.• Troubleshooting: Identify, and solve issues such as system panic; file system errors, and application malfunction in order to maintain uptime, stability and availability.• Performing day-today system administration operations such as creating, modifying and deleting user accounts; software installation; maintenance; policy implementation and internal wiki documentation.• Manage and resolve L2 and L3 incident tickets assigned to Linux group for various range of issues such as file system full, system slowness, memory errors, CPU utilization and system connectivity.• Performed System configuration for SAN storage on Linux hosts by creating the volume group, logical volume, and mounting LVM volumes as file systems.• Monitor server health using IBM Tivoli Monitoring Software for Linux infrastructure.• Manage and support Linux virtual machines via VMware vSphere.• McAfee VirusScan installation on Linux servers and updating DAT file definitions.• Performed configuration and device support for local and SAN based hardware.• Use of security tools such as Qradar to monitor and identifying system security threats and vulnerabilities.• Configured Linux network interface cards for adding IP addresses, routing, aliasing and VPN functionality.• Installing and configuring VPN software on Linux servers such as OpenVPN and TigerVPN for user connectivity.• Communicate with third party suppliers for hardware repairs & software support.• Solving application connectivity on Linux Servers. Issues such as port connectivity and using tools such as tcpdump, snoop and wireshark. • Installing/upgrading patches on Linux servers using yum to update and address system vulnerabilities and audit compliance.

Quincy, Il, Us

• Responsible for the support of the Linux and Solaris infrastructure including day-to-day operations such as creating, modifying and deleting user accounts. Provide ongoing management, performance-tuning and Tier 2, 3 support for 850+ Linux and Solaris systems.• Utilize security tools such as Nmap and Nessus to scan vulnerable subnet hosts and repair them.• Monitoring server health such as disk space, memory, and CPU load of UNIX hosts using Nagios, BMC Patrol and Big Brother.• Troubleshooting and resolving software issues such as remote server blocked by firewall or incorrect TCP port being used.• Vulnerability assessments and security reviews through a comprehensive testing process to identify weaknesses and vulnerabilities.• Creating and modifying shell scripts to monitor & restart processes as well as system start/stop scripts upon system boot.• Create installation and configuration procedures and uploaded them onto online knowledge base.• Performance Tuning: Ensured that assigned systems were configured and optimized for maximum functionality and availability. • Configured high availability infrastructure (VCS) by adding nodes to existing clusters.• Configure SAN based storage on UNIX hosts by creating diskgroups, and volume, then create and mount the file system.• Configuring and adding new services such as autofs, autosys and bpcd (Netbackup service).• Worked with Production Support Team to fix internal and external customer connectivity such as FTP transfer.• Worked with Development Team to install, deploy web and java applications such as Apache and Tomcat, modifying its configuration files, troubleshoot and resolve application issues such as TCP port connectivity.• Applied Operating System patches on cycled basis, addressing system vulnerabilities and ensuring audit compliance.• Deploy server and networking hardware. Monitor rack space and power usage.• Construct rack layout, create and maintain rack elevation drawings and documentation.

Master Of Science (M.S.), Bioengineering And Biomedical Engineering

Bachelor Of Science (B.S.), Electrical Engineering

Shakespearian Theatre

Conservatory, Method Acting