Omar Llerena

Summary

Systems Administrator and Military Veteran with a Secret Clearance and 6 years of proven experience in the United States Marine Corp. Started with the basic IT job of a helpdesk administrator where professional customer service skills were created. Accomplished multiple domain level tasks as an systems administrator with a team. Which could not be accomplished without attention to detail and leadership. Later managed networks across naval ships and in foreign countries as a supervisor in the IT field. Recipient of certificate of commendation as young IT professional an d have certified developed myself since 2019.

Overview

years of professional experience

Certification

Work History

System Administrator

Marine Corps

02.2019 - 04.2022

Monitored system performance to ensure optimal operations and identified potential issues with a One Note Tracker for all 58 computers, 3 video teleconferencing cameras and 20 phones for a two story government building.
Installed, tested and evaluated new applications Microsoft apps and VPN security patches via a software center when required for DoD. Relieving the government facility from 100% vulnerabilities and productive user-use.
Troubleshot application errors and provided technical support to over 40 end-users.
Resolved complex technical problems within established service level agreements.
Maintained inventory of hardware assets including servers, laptops, desktops via a One Note Tracker.

Education

Park University

Kansas City, MO

Miracosta College

Oceanside, CA

Skills

CISSP certification
Comptia Security Certification
Spanish Speaker and Writer

Google Cyber Security Certificate
Skill-bridge Internship
Military Network Plus and CCNA certifications

Accomplishments

Leadership Course for supervisors or managers