Summary
Overview
Work History
Education
Skills
Timeline
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Aaron Mason

Aaron Mason

Columbus

Summary

Results-driven Senior IT Systems Engineer with over 12 years of progressive experience managing and supporting enterprise IT environments across multiple industries. Proven expertise in Windows Server administration, VMware virtualization, Microsoft 365, Azure AD, endpoint security, and network infrastructure management. Skilled at deploying, configuring, and maintaining critical IT systems, troubleshooting complex technical issues, and implementing security measures to safeguard organizational data. Recognized for strong customer service, leadership, and mentoring skills, with a track record of streamlining IT operations, reducing downtime, and improving system reliability. Seeking to leverage my technical expertise and problem-solving ability to deliver scalable, secure, and high-performing IT solutions while contributing to organizational growth.

Overview

12
12
years of professional experience

Work History

Senior IT Systems Engineer

Crown Services
08.2019 - Current
  • - Manage and maintain Windows Server environments with Active Directory, Group Policy, DNS, DHCP, and Exchange Online for 300+ users.
  • - Administer VMware vSphere/ESXi, performing VM provisioning, lifecycle management, patching, and monitoring to ensure high system uptime.
  • - Oversee Microsoft 365 and Azure AD, handling user licensing, Teams, SharePoint, and security configurations to support hybrid operations.
  • - Configure and troubleshoot network infrastructure (switches, firewalls, VPNs) to optimize connectivity and reduce recurring network issues by 20%.
  • - Deploy and manage Endpoint Detection & Response (EDR) solutions, patch management, and vulnerability remediation to strengthen cybersecurity posture.
  • - Lead hardware lifecycle and imaging processes, reducing deployment times by 30% through automation and standardized procedures.
  • - Collaborate with leadership on IT policies, documentation, and SOPs, ensuring compliance and improved incident response.
  • Advanced Role

Systems Administrator

Crown Services
08.2019 - Current
  • - Managed user accounts, groups, and permissions using Active Directory and Group Policy, ensuring proper access controls.
  • - Performed physical installations and troubleshooting of network equipment (switches, modems, firewalls) for multiple branch locations.
  • - Maintained and supported Windows servers, diagnosing and resolving hardware and OS-related issues.
  • - Imaged, wiped, deployed, and repaired Windows 7 and Windows 10 desktops and laptops to meet end-user needs.
  • - Oversaw Google Workspace administration, handling email account creation, permissions, and troubleshooting for organizational use.
  • - Provided Tier 2 escalation support for on-site and remote employees, resolving critical IT issues in a timely manner.
  • Earlier Phase of Role

Systems Administrator

SurgeForce Group
03.2018 - 08.2019
  • - Managed Active Directory environments, creating and maintaining secure user accounts, OU structures, and GPO policies for multiple client sites.
  • - Supported Windows Server administration and troubleshooting, improving system uptime and user accessibility across remote locations.
  • - Led deployment of mobile device management (iOS, Android) solutions, increasing device security and reducing manual configuration time by 40%.
  • - Collaborated with network teams to install, configure, and troubleshoot firewalls, switches, and VPN connections, ensuring reliable connectivity.
  • - Managed mailbox permissions and distribution lists via Exchange Admin Console, improving email flow efficiency for departments.
  • - Created detailed IT documentation and SOPs for common processes, reducing repeat support tickets.

Tech Ops Specialist

JP Morgan Chase
08.2017 - 03.2018
  • - Oversaw hardware refresh projects, decommissioning and installing new equipment across multiple sites, reducing deployment errors by 25%.
  • - Used remote tools to wipe, reimage, and push software to endpoints, ensuring timely delivery of standardized configurations.
  • - Managed ticket queues, documenting technical resolutions and prioritizing critical issues to minimize business impact.
  • - Coordinated with on-site techs to troubleshoot server, PC, and printer hardware issues, ensuring smooth operations for end users.
  • - Provided guidance and technical support for junior technicians during large-scale IT upgrades.

Escalation Specialist

The Wendy’s Company
08.2013 - 05.2017
  • - Acted as Tier 2 escalation point for unresolved technical issues, consistently meeting SLA targets for incident resolution.
  • - Supervised and coached Tier 1 agents, improving troubleshooting accuracy and reducing repeat tickets by 35%.
  • - Developed and delivered training materials and process documentation to enhance team knowledge and efficiency.
  • - Conducted root cause analysis on recurring issues, implementing fixes and coordinating with other teams to improve IT systems stability.
  • - Managed high-priority escalations from district managers and directors, ensuring timely resolution of critical restaurant IT problems.

Education

VMware VSphere: Install, Configure, Manage V7

New Horizons Computer Learning Centers
Online
01-2021

Comptia A+ Certification - Information Technology

Per Scholas
Columbus
03-2013

Some College (No Degree) - Computer Science

Columbus State Community College
Columbus, OH

Skills

  • Systems administration: Windows Server, Active Directory, Group Policy
  • Virtualization and cloud: VMware vSphere, Microsoft Azure
  • Network security: Firewalls, VPN configuration, IT security hardening
  • Endpoint management: Device imaging and support
  • Troubleshooting: Tier 2-3 escalation, hardware diagnostics
  • Automation: PowerShell for system monitoring
  • Project management: IT documentation and SOP creation
  • Collaboration: Mentoring and cross-team coordination

Timeline

Senior IT Systems Engineer

Crown Services
08.2019 - Current

Systems Administrator

Crown Services
08.2019 - Current

Systems Administrator

SurgeForce Group
03.2018 - 08.2019

Tech Ops Specialist

JP Morgan Chase
08.2017 - 03.2018

Escalation Specialist

The Wendy’s Company
08.2013 - 05.2017

VMware VSphere: Install, Configure, Manage V7

New Horizons Computer Learning Centers

Comptia A+ Certification - Information Technology

Per Scholas

Some College (No Degree) - Computer Science

Columbus State Community College

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