Olufemi Onafuye

Work History

Linux Administrator

Alokazor

01.2024 - Current

Managed and monitored installed systems for highest level of availability.
Installed packages and software upgrades using rmp, yum, dnf, apt as needed.
installed ,configured and maintained services such as Apache web server, Nginx , apache tomcat, SSH, load balancer, Samba, SAN, HAproxy.
Managed use of various types of databases and configured, installed and upgraded new ones like MySQL ,Mariadb
Wrote and maintained custom scripts to increase system efficiency and performance time such as back-ups, collecting and sorting logs, installation and monitoring
Created profiles in Ansible and pushed across all the servers across LINUX environments
Provided technical support and troubleshooting to internal and external clients
Supporting operating systems Red Hat Linux, CentOs, Fedora and Ubuntu
Experience working with Vmware Exsi, setting hard Partitioning using VM Utilities Performing change operations, performing disk backup, recovery and upgrade Interacted with vendors, contractors and professional services personnel to receive orders, direct activities and communicate instructions
Worked on virtual and physical Linux hosts and involved in day-to-day administrative activities such as maintaining user accounts, password management, providing advanced file permissions to specific users etc
Enhanced system security through regular vulnerability assessments and timely patch management.
Knowledge in system hardening such as SElinux, ACL , visudo chroot, etc.
Resolved day to day problems raised by users and lodged incidents presented by even monitoring system
Handled critical outages effectively minimizing the downtime of the servers
Enhanced system performance by optimizing server configurations and implementing regular updates.
Reduced downtime by proactively identifying and resolving potential issues through thorough system monitoring.
Improved security measures by conducting vulnerability assessments and applying necessary patches.
Collaborated with IT team to develop and implement comprehensive disaster recovery plans, ensuring minimal data loss during critical incidents.
Streamlined network operations by automating routine tasks using advanced scripting techniques.
Enabled smooth transitions during hardware and software upgrades, minimizing disruptions to endusers.

System Administrator

Teleworld Solutions

08.2021 - 12.2023

Managed and maintained a large-scale Linux server environment comprising over 500-1000 servers, ensuring optimal performance and reliability
Automated routine tasks using shell scripting (Bash) to improve efficiency and reduce manual errors
Implemented and managed backup and recovery solutions to safeguard critical data
Monitored system performance, analyzed logs, and resolved performance issues in a timely manner
Collaborated with other teams to deploy and support applications on Linux servers
Implemented security best practices, and ensured compliance with industry standards
Provided technical support and troubleshooting for Linux-related issues to internal teams and clients
Installed system-wide hardware components, confirming interoperation and compatibility with Linux-based software distros
Installing, configuring and maintaining Linux operating systems (OS), analyze and resolve problems
Administrations of servers based on Linux, CentOS and RHEL 5,6 and 7 which includes installations, testing tuning upgrading and loading patches
System disk expansion for both fixed and LVM partitions
RPM and YUM package installations, patch and other server managements Interacted directly with users to diagnose and correct major system issues and address concerns
Created and serviced administrator and user accounts on Linux-based systems, managing various deployments
Developed organization-wide administration policies to encourage continuity across multiple systems and facilities
Patched up the systems with the Linux servers and created tickets for the respective services
Documented system configurations, procedures, and troubleshooting steps.
Optimized server performance by implementing efficient system configurations and monitoring tools.
Enhanced system security through regular vulnerability assessments and timely patch management.
Streamlined software deployment processes for increased efficiency and reduced downtime.
Collaborated with cross-functional teams to design and implement infrastructure improvements, leading to enhanced system stability.
Reduced operating costs by migrating legacy systems to more cost-effective open-source solutions.
Developed custom automation scripts, significantly reducing time spent on routine administrative tasks.
Maintained high availability of critical systems by proactively addressing issues and conducting regular backups.

System Administrator

Thanos Consulting

06.2019 - 07.2021

Monitored the performance of Linux servers both on premise and virtual
Responsible for user management and patching on Linux servers (Red hat and CentOS)
Provided support for escalated tickets from Technical Specialist and/or Network/System architect(s) Provided internal analysis and support to ensure stability and reliability of infrastructure
Created processes from current state to maturity through facilitation and requirement gathering
Interacted with internal users and customers to learn and document requirements used to produce business required documents
Communicated highly technical information to both technical and non-technical stakeholders
Provided support during system development by interacting with software architect to understand software limitations
Documented requirements and contribute to user manuals on all activities
Implemented new systems by liaising with other IT staff such as programmers, networking to produce new systems
Performed evaluation of the functionality of Linux systems
Consulted with users to ascertain needs and to ensure that facilities meet user or project requirements.
Enhanced system performance by optimizing server configurations and implementing regular updates.
Reduced downtime by proactively identifying and resolving potential issues through thorough system monitoring.
Improved security measures by conducting vulnerability assessments and applying necessary patches.
Collaborated with IT team to develop and implement comprehensive disaster recovery plans, ensuring minimal data loss during critical incidents.
Supported the implementation of new technologies by providing technical expertise and training to colleagues as needed.
Enabled smooth transitions during hardware and software upgrades, minimizing disruptions to endusers.
Streamlined network operations by automating routine tasks using advanced scripting techniques.

Junior Linux Administrator

Top View Tour

06.2013 - 02.2016

Enhanced system performance by optimizing Linux server configurations and implementing efficient backup procedures.
Streamlined software deployment processes for increased productivity and reduced downtime during critical updates.
Collaborated with cross-functional teams to troubleshoot network issues, resulting in improved overall system stability.
Managed user accounts and access permissions, maintaining a secure environment for sensitive data storage.
Developed scripts for automating repetitive tasks, increasing efficiency of the IT team.
Monitored system logs and performed routine maintenance tasks, ensuring optimal server performance at all times.
Worked with users to determine areas of technology in need of improved usability.

System Administrator

Masha Academy

11.2011 - 01.2016

Resolved issues and escalated problems with knowledgeable support and quality service
Involved in installing ,configuring and maintenance of window servers
Create user Account and Group in Active Directory AD
Involved in troubleshooting issues related to servers, local services, and Data Centers for Microsoft windows system,
Compiled, processed and analyzed test data and results to improve product quality
Monitor security programs and alerts for anomalous behavior Developed IT policies to comply with applicable laws
Assisted employees with resolving network problems at remote locations
Handled critical outages effectively minimizing downtime of the server Monitoring security programs and alerts for anomalous behaviors Updated latest security patches for different Linux distributions (Redhat, Ubuntu etc).
Improved system performance by proactively monitoring and maintaining hardware, software, and network components.
Streamlined processes for increased efficiency by automating repetitive tasks through scripting.
Reduced downtime during system upgrades by carefully planning and executing migration projects.
Enhanced security measures with the implementation of patches and updates in a timely manner.

Summary

Overview

Work History

Linux Administrator

System Administrator

System Administrator

Junior Linux Administrator

System Administrator

Education

Bachelor of Science - Information Technology

Continuing Education - Computer Science

Associate degree - Computer Engineering

Skills

Certification

Timeline

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