ABOUT ME

Hi, I'm Patrick Chung. Windows Infrastructure Engineer with extensive experience managing and supporting large-scale enterprise Windows environments across Microsoft Azure, VMware, and hybrid infrastructures. Strong technical expertise in Active Directory, Group Policy, DNS, DHCP, Windows Server security, enterprise patch management, disaster recovery, virtualization, and PowerShell automation. Proven track record of maintaining highly available, secure, and reliable mission-critical IT infrastructure in complex enterprise environments. Skilled in incident response, root cause analysis, infrastructure optimization, platform standardization, and driving operational excellence within highly regulated organizations.

I built this page as part of the Cloud Guru Azure Resume Challenge.

Work

Cencora

Infrastructure Engineer II• 2019 - 2025

  • Supported production Windows servers across Azure and VMware in a 24/7 mission-critical environment.
  • Operated within an IT Command Center, triaging incidents based on business impact, SLOs, and SLA targets.
  • Performed root cause analysis and drove remediation using New Relic One and performance telemetry.
  • Led monthly OS patching and vulnerability remediation using SCCM, improving compliance and security posture.
  • Maintained ESXi hosts and virtual infrastructure, including patch cycles and capacity planning.

    • NTT Data

    System Administration Advisor• 2010 - 2019

  • Supported federal-grade Windows and VMware environments for Department of Education and Federal Student Aid systems.
  • Built and maintained virtualized server infrastructure supporting mission-critical applications.
  • Conducted capacity planning, performance monitoring, and incident response.
  • Performed monthly vulnerability remediation and compliance enforcement.

    • Fidelity Investments

    Server Security & Systems Engineer• 2001 - 2010

  • Supported 5,000+ Windows servers including Citrix, IIS, and McAfee ePO platforms.
  • Led enterprise antivirus deployment (McAfee ePolicy Orchestrator).
  • Built and deployed automated patching packages using scripting and deployment frameworks.
  • Provided secure access control and compliance remediation for development and operations teams