Summary
Overview
Work History
Education
Skills
Certification
Timeline
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Jan Gabriel

Ajax,ON

Summary

Experienced IT Administrator with 13+ years in MSP and corporate environments, driving results in enterprise IT infrastructure management. Expertise in Windows Server, virtualization, network security, and escalation support. Adept at team training, PowerShell automation, and implementing scalable solutions. Proven problem-solver, technical leader, committed to delivering efficient, secure, user-focused IT services.

Overview

15
15
years of professional experience
1
1
Certification

Work History

Senior Support Engineer

System Architects Inc.
06.2021 - Current
  • Delivered technical training to new hires, reducing onboarding time and improving first-time ticket resolution rates.
  • Resolved escalated tickets and critical issues monthly in a high-pressure MSP environment, improving SLA compliance and client satisfaction.
  • Managed virtual machine infrastructure across Hyper-V and ESXi, achieving high uptime through proactive maintenance and resource optimization.
  • Conducted monthly firewall and vulnerability reviews, identifying and mitigating security risks, and reducing exposure.
  • Monitored and analyzed security alerts generated by Datto EDR and RocketCyber platforms to identify and respond to potential threats.
  • Collaborated with leadership to streamline IT operations, leading to a significant improvement in support team efficiency.

L3 Engineer

Cognizant Technology Solutions
08.2016 - 02.2020
  • Resolved high-impact incidents as final escalation point, significantly increasing resolution speed and reducing business downtime.
  • Administered enterprise-wide Microsoft infrastructure, including Active Directory, DNS, DHCP, and Exchange Online.
  • Led technology integration projects and continuous estate improvement initiatives.
  • Developed PowerShell scripts automating server monitoring and ticketing, saving hours weekly in manual work.
  • Led patch management for servers and desktops via WSUS, achieving high compliance and minimizing vulnerabilities.

L2 Engineer

Regus Service Center
02.2014 - 08.2016
  • Provided level 2 support for 1000+ endpoints, mentored 5 junior admins, and improved team ticket closure rates.
  • Remediated non-compliant systems and supported antivirus, AD replication, and backup systems.
  • Handled security incidents, malware response, and spam filtering.

Systems Administrator

Regus Service Centre
02.2011 - 02.2014
  • Participated in provisioning and maintaining Windows servers in collaboration with senior engineers.
  • Maintained backup integrity of servers, achieving 100% restore success rate during critical incidents.

Desktop Support Engineer

MAERSK Global Services Centre - Pasig
02.2010 - 01.2011
  • Resolved daily support requests remotely, achieving a high user satisfaction rating over 12 months.
  • Administered Active Directory users and groups, including user creation, group assignment, and password management.

Education

Bachelor of Science - BA - Management of Information Systems

AMA University
Philippines

Skills

  • Operating Systems: Windows Server, Linux
  • Virtualization: Hyper-V, VMware ESXi
  • Networking: SonicWall, pfSense, Meraki, Ubiquiti, VPN (IPSec, SSL, L2TP), NAT & Firewall Rules
  • Cloud & Productivity: Microsoft 365, Azure AD, Intune, SharePoint Online, OneDrive, Exchange Online
  • Scripting/Automation: PowerShell, Bash
  • Security Tools: OpenVAS, Sophos, ESET, McAfee, IronPort, Datto EDR, RocketCyber
  • Server Admin: DNS, DHCP, Active Directory, GPO, WSUS, IIS, SSL Certificates
  • Backup & Recovery: Symantec Backup Exec, Veeam

Certification

- MCITP: Server Administration 2008

- CCNA Security

- ITIL v3 Foundation

- COMPTIA CYSA+

- Security Blue Team (BTL 1)

Timeline

Senior Support Engineer

System Architects Inc.
06.2021 - Current

L3 Engineer

Cognizant Technology Solutions
08.2016 - 02.2020

L2 Engineer

Regus Service Center
02.2014 - 08.2016

Systems Administrator

Regus Service Centre
02.2011 - 02.2014

Desktop Support Engineer

MAERSK Global Services Centre - Pasig
02.2010 - 01.2011

Bachelor of Science - BA - Management of Information Systems

AMA University

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Jan Gabriel