Summary
Overview
Work History
Education
Skills
Certification
CLEARANCE
Timeline
Generic

KENNETH UGWUOZOR

Upper Marlboro,MD

Summary

Highly skilled Linux System Administrator with over 9+ years of experience in managing and maintaining Linux-based systems, specializing in RHEL, Ubuntu, and Oracle Linux. Experienced in comparing system performance metrics and identifying optimization opportunities to improve efficiency and reliability. Proficient in system automation, server monitoring, and network configuration. Adept at troubleshooting and ensuring system security.

Overview

1
1
Certification
11
11
years of professional experience

Work History

Linux System Engineer

LCG, INC.
08.2024 - 04.2025
  • Performed general Linux administration, including installation, Management, configuration, and troubleshooting.
  • Ansible Automation deployed Ansible nodes on Azure VMs and managed connectivity using Ansible playbooks.
  • Installed and enabled security agents such as Nessus agent, CylancePROTECT, MDE-agent Microsoft Defender for Endpoint agents, Splunk Universal Forwarder and BigFix using RPM with a playbooks
  • Deployed a new Oracle server on KVM hypervisor and connect with IPMI then joined server to the domain.
  • Transferring data from one Linux system to another using TMUX to run RSYNC scheduled with cronjob
  • Created Vlan and configured from 1GB to 10GB Connection
  • Installed Avamar agents to all the servers and enabled to be connected with the Avamar Server.
  • Connected with Oracle Vendors to troubleshoot and get issues resolved

Linux Engineer

LTIMindtree
11.2021 - 01.2024
  • Managed RHEL and Ubuntu servers, automating configurations with Ansible.
  • Monitored system health with Nagios, proactively addressing issues.
  • Configured secure SSH practices and managed firewall rules.
  • Automate my patching with Ansible Tower
  • Provisioned AWS services and managed cloud resources efficiently.
  • Built and managed VMware VMs, KVM optimized storage on servers with NAS, SAN, LVM, and automated backup processes.
  • Configured GPU for monitoring and scheduling
  • On prem Installed and configured web server like (Apache Server HTTP, Apache Tomcat and Nginx) to be responding to different firewall ports.
  • Deployed docker container application on ECS, connect with Amazon Linux EC2 instance to AWS RDS PostgreSQL and integrated with S3 for seamless injection of data to the PostgreSQL.
  • Managed security SELinux, firewalled, best practice for access control and kernel hardening on KVM.
  • Performed OS and kernel updates to maintain security compliance.
  • Provided L3 (Level 3) support in production environments by troubleshooting complex Linux server issues, including kernel crashes, performance bottlenecks, storage failures, and configuration drift.
  • Performed L2 and L3 level system monitoring and maintenance, proactively identifying and resolving issues related to CPU, memory, disk usage, and network bottlenecks, while automating alerts and recovery using custom Shell scripts and monitoring tools.
  • Implemented secure web hosting by configuring Apache Tomcat with SSL/TLS certificates to enable HTTPS, ensuring encrypted client-server communication and improved application security.
  • Automated software deployment with DevSecOps tools like Docker and Kubernetes.
  • Maintained detailed documentation for virtualization infrastructure, system maintenance and best practices.
  • Deployed and managed servers on virtualization hyper-v deploying of Azure VM Gen 2.
  • Worked with Microsoft storage, Azure Policy, or Azure EntraID.
  • Created and deployed Window Server 2016 for configuring of DNS, DHCP, AD DS and LDAP authentication.
  • Used AZ Copy to efficiently transfer large volumes of data between on-premises systems and Azure cloud storage.
  • Installed, configured maintained sql Server database in Azure cloud and MySQL.
  • Worked with IBM BigFix servers in Filesystem management using (LVM, XFS, EXT4, NFS).
  • Network configuration IP, DNS, GATEWAY, Monitor system logs /var/log
  • Used dnf and yum in managing software’s packages security updates.
  • Used Wiki for knowledge base and Microsoft office 365 with Excel
  • Analyzed performance issue on CPU and memory with top, htop, free -m, Load average with uptime and processes with ps aux.
  • Configured SELinux, firewalld, and SSH hardening.
  • Automated backup and recovery of trillium directories and configure file using bash and Ansible
  • Applied OS-level patches and ensuring java and dependencies (Apache Tomcat, Oracle/OpenJDK used by Trillium were up to date
  • Created a Bash script to monitor CPU usage and trigger alert notifications when usage exceeds 80% threshold, helping proactively manage system resource utilization and avoid performance degradation.
  • Used ansible for automating RHEL OS patching and post-install configuration across IBM systems.
  • Administered RHEL, Ubuntu, and CentOS servers, focusing on system stability.
  • Used ISO and Template to deploy and configured VMs on virtualization using VMware Esxi 7.x, 8.x vCenter Server and vSphere to work with the advance features HA, DRS, vMotion, and Snapshot.
  • Performed vMotion migrations of live VMs from on-prem VMware to AVS
  • Executed live migration (vMotion) through HCX and minimized downtime
  • Automated routine maintenance tasks with Ansible.
  • File sharing using SAMBA/NFS/CIFS across different operation systems.
  • Used FTP/SFTP/FTPS protocols and tools to transfer data from one server to another
  • Deployed LAMP stack for web hosting and maintained high availability.
  • Managed network configurations, including firewall and VPN setup.
  • Provided training on Linux system maintenance and troubleshooting.
  • Managed Linux storage with LVM, and NAS.
  • Collaborate with L2 and L3 support teams to troubleshoot critical infrastructure problems, implement system hardening measures, apply kernel patches, and optimize server performance with tailored Shell scripting solutions.

Linux System Administrator

Super User Consulting
01.2020 - 11.2021
  • Managed on prem RHEL and various Linux distributions and ensured optimal system performance running on virtual machines.
  • Migrated RHEL 7.6 to 8 using LEAP utility tool
  • Automated administrative tasks using Ansible and Bash scripting for user’s management where I created multiple user’s which will need them to change their password at the first login.
  • Created networking concepts like VLANs, DNS, TCP/IP and SSH on machines built on KVM
  • Worked with disaster recovery and backup for virtualized environments using Avamar server syncing data with Avamar clients.
  • On prem Installed and configured web server like (Apache Server HTTP, Apache Tomcat and Nginx) to be responding to different firewall ports.
  • Installed and configured trillium note, trillium server and trillium director on RHEL 7, 8 and 9
  • Managed cloud resources on GCP, AWS and Azure, configuring VMs and network policies.
  • Installed and configured web servers, ensuring secure and efficient operation.
  • Provided extensive documentation for configurations and troubleshooting procedures.
  • Red Hat Satellite in Provisioning, Patching, Deployment of RHEL Systems and Ansible for automation with Ansible tower.
  • RHEL IDM design, deploy, and mange IDM centralized identity, authentication and authorization services in Redhat-base environment, using Free IPA.
  • Docker building application and Kubernetes in scaling pods
  • Maintained the storage back up by using Veeam on Linux and Window server to create policy for the backup.
  • Managed FTP server configuration and troubleshooting (e.g., vsftpd)
  • Deployed and Configured VMs on VMware Esxi in vCenter Server using vSphere Client administer and managed VMware vSphere environments.
  • Enforced least privilege to limit admin rights on both Window and Linux OS.
  • Installed packages using Yum, RPM, Wget to download
  • Perform upgrade on Red Hat Linux whenever required
  • Worked with Windows Server 2016 for Active Directory
  • Configure Logical Volume Manager, create and modify file system, Logical Volume, Physical Volume, Volume groups and Swap
  • Created/managed user and group account, security, permissions, password recovery aging
  • Working with RHEL7.X and MFA
  • Installed and configured LAMP STACK Apache, MySQL/MariaDB, PHP
  • Performed Network configurations in Linux environment, vulnerability and penetration test, identifying against threats and developing disaster recovery plans

System Administrator

Lo-Ween Engineering
01.2014 - 07.2019
  • Administered RHEL, Ubuntu, and CentOS servers, focusing on system stability.
  • Configured VMs on VMware vCenter/vSphere and managed performance monitoring.
  • Automated routine maintenance tasks with Ansible.
  • File sharing using SAMBA/NFS across different operation systems.
  • Deployed LAMP stack for web hosting and maintained high availability.
  • Managed network configurations, including firewall and VPN setup.
  • Provided training on Linux system maintenance and troubleshooting.
  • Managed Linux storage with LVM, and NAS.
  • Managed the securities in the GCP as a Linux administrator in area of instance hardening, vulnerability/ patch management, IAM, encryption and data protection, firewall and network securities, infrastructure as a code.
  • Documentation and version control Git, and GitHub for source codes
  • Managed system configurations and software installations across diverse environments.

Education

Bachelor of Engineering - Metallurgical & Materials Engineering

Enugu
Enugu, Nigeria
09-2020

Skills

  • Linux Administration: RHEL, Ubuntu, Oracle, Centos
  • Networking: TCP/IP, router, switches, DNS, SSH, VPN
  • Security: SELinux, FirewallD, Password policies, SSH Hardening, DISA STIG
  • Configuration Management: Ansible
  • Storage: NAS, SAN, LVM
  • Cloud Platforms: AWS, Azure, GCP
  • Virtualization: VMware vCenter, vSphere, ESXI, KVM, Hyper-v
  • Migration: RHEL 7 to 8 and on prem servers to cloud with vMotion
  • Automation: Cron jobs, Rsync, Tmux, Ansible
  • Monitoring: Splunk Indexer and Forwarder
  • Scripting: Bash shell
  • Documentation: Version control with Git
  • Vulnerability: STIG Viewer, Tenable Security centre, Nessus Manager/agents, update/patches
  • Window Server: AD DS, OU, User’s, groups, and DNS
  • Container: Docker, Podman and Orchestration Kubernetes
  • Filesystem management: Ext2, Ext3, Ext4, vFat, and XFS
  • Package manager management: dnf, yum, Wget and apt
  • Troubleshooting: journalctl -xe, tail /var/log/
  • Backup: EMC/Avamar Server enterprises backup/restore
  • RHEL IDM: user, group and host group, Sudo access, SSSD/PAM, password policy, HBAC

Certification

  • AWS Solution Architect – Associate Certification (SAA-C01) June 2020 – June 2023
  • (RHEL 7) Red Hat Certified System Administrator (RHCSA) July 2020 – July 2023
  • (RHEL 9) Red Hat Certified System Administrator (RHCSA) February 2024 – February 2027.
  • CompTIA Security + Certification (SY0-701) May 2025 – May 2028

CLEARANCE

Public Trust

Timeline

Linux System Engineer

LCG, INC.
08.2024 - 04.2025

Linux Engineer

LTIMindtree
11.2021 - 01.2024

Linux System Administrator

Super User Consulting
01.2020 - 11.2021

System Administrator

Lo-Ween Engineering
01.2014 - 07.2019

Bachelor of Engineering - Metallurgical & Materials Engineering

Enugu
KENNETH UGWUOZOR