Onyemaobi Emmanuel Ezeogu

EMMANUEL ONYEMAOBI EZEOGU-7769 Willow oak court, Hanover MD 21076 +1(443)- Permanent Resident TECHNICAL SKILL SUMMARY: A highly driven and motivated Linux administrator with proven technical skill in a wide range of operating system platforms and support based system services including and not limited to troubleshooting, maintenance, hardware support, installation and configuration. Possesses strong communication skills and comfortable in team-based roles or single focused positions with minimal supervision. Education: Bsc Building Engineering, University of Jos, Jos Nigeria TECHNOLOGIES AND EXPERTISE Operating systems and related technologies: RHEL 5/6/7, Solaris 9/10, Centos 4/5/6/7, Fedora, Ubuntu, Windows vista/XP/7/8, Active directory, LDAP, Virtualization technologies: KVM, VmWare ESXi, RHEVM Networking: TCP/IP, LAN, WAN, INTERNET Computer skills: Microsoft word, excel, PowerPoint, outlook Software and applications: Oracle 11g, 12c, apache tomcat, ansible/puppet NetBackup(Symantec) Ticketing applications: Remedy IT service management, BMC Remedy Connection tools: ssh, telnet, sftp, ftp, WinScp, putty Backup technologies: NetBackup, gzip, bzip, tar, rsync, Monitoring: HPOV, Nagios PROFESSIONAL EXPERIENCE LINUX SYSTEM ADMIN: FASLINK SERVICES: February 2019 - Present Patching development, test, and production servers based on given patch cycles and times. Worked in NOC, responding to issues/alerts thrown by Nagios and HP Open View and resolving/escalating. Managed and installed packages using yum and rpm tools. Created user accounts, managed user privileges, managed disk space, and set up disk quotas for specific accounts. Created RHEL virtual servers in VMware center from consolidated image and from attached image in datastore. Configured and set up the network for newly created virtual servers and added them to the Red Hat Satellite. Installed, configured, and supported Apache on virtual machines. Managed routing backup using NetBackup. Set up cron jobs and enabled or disabled jobs as required. General troubleshooting. Configured password-less login between servers. Created filesystems using logical volumes and updated fstab. Recovered root password for older generation servers. Performance tuning for the Oracle team, fixing issues with Hugepages and swap space modification. Fixed broken links associated with startup scripts. Fixed NFS stale handles. Installed Red Hat servers using Puppet and Foreman. Cloned virtual machines in VMware ESXi host and migrated between hosts. Created and managed user accounts, user profiles, and privileges. Granted sudo (elevated) privileges as required. Filesystem investigation to find out why the threshold has been passed and fixing as required. Configured local repositories for development servers that were not connected to the satellite server. Responding to alerts thrown by the monitoring tool (HPOV). Configuring and setting up NFS filesystems. Chron jobs set up and administration. Physical server walk-through and observations to determine physical points of failure. Carrying out production readiness reviews. Scanning for LUNS allocated by the storage team and creating logical volumes and filesystems from them. Documentation of work done and uploaded to SharePoint. Shell scripting with bash. Physical disk replacements (Hot swappable). Supported the audit teams. Virtual box set up on Windows machines using CentOS VDI images. General troubleshooting. DATA ANALYST (CONTRACT) Nigeria Centre for Disease Control and Prevention (NCDC): March 2020 - December 2020 Checked that information was accurate and organized. Transcribed data to electronic format. Installed, configured, and maintained Linux systems used for data analysis. Automated data collection processes using shell scripts. Ensured data security and integrity by implementing appropriate security measures. Provided technical support and troubleshooting for data-related issues. LINUX SYSTEM ADMINISTRATOR MTN Nigeria: January 2020 - February 2022 Managed and maintained Linux servers to ensure high availability and performance. Automated routine tasks using shell scripting and configuration management tools. Provided support for network and security configurations. Implemented backup and disaster recovery solutions. Monitored system performance and security, addressing any issues promptly. LINUX SYSTEM ADMINISTRATOR Globacom Nigeria: March 2022 - April 2024 Administered and supported a large environment of Linux servers. Managed virtualization infrastructure using VMware. Implemented and maintained system monitoring solutions. Conducted regular system audits and security checks. Provided technical support and troubleshooting for various teams. Documented system configurations and procedures. Reference: Available upon request