Caleb Luh logo

CL

Loading Experiences...

Welcome, I'm Caleb Luh

Infrastructure & Security Specialist (Net+, Sec+, SecAI+) & Former NCAA and MCLA Athlete. Now running enterprise ITSM & Identity Automation for 2,100+ users at J.F. Ahern Co.

The Origin Story

From Command Blocks
to Command Lines.

I've been the go-to computer guy since I was ten years old, when I built my first PC for my grandmother. Since then, I've gone from modding Minecraft to architecting Active Directory environments and deploying enterprise virtualization.

If you boil down what I enjoy doing, it's a simple mix: I like computers, I like building things, and I like helping people. Enterprise IT is one of the few fields where I get to do all three every single day. I realized early on that I didn't want to build software all day; I wanted to build and secure the heavy infrastructure that everything else runs on.

Today, I'm a Network Administrator at J.F. Ahern Co., leading identity automation and modernizing ITSM infrastructure for over 2,100 users. My background includes managing IT infrastructure across both municipal government and a global defense contractor. I graduated from UCF with my IT degree in May 2026, hold Network+, Security+, and SecAI+ certifications, and I'm currently working toward the Azure Network Engineer Associate (AZ-700) to bridge the gap between on-premise hardware and the cloud.

Outside of tech, I'm competitive and love to travel. I recently spent time exploring Portugal and Spain, and when I'm home, I'm usually out on the golf course working on my swing. I also bring that same competitive drive to gaming, at one point reaching a global Top 200 ranking in Brawl Stars.

Interests

Lacrosse
Hiking
Travel
Gaming
Golfing
Quantum Computing
Alto & Soprano Saxophone
LinkedIn ↗GitHub ↗Fond du Lac, WI

The Résumé — Updated 2026

PROVEN IN PRODUCTION.

Download PDF
3,300+
Enterprise Users Supported
300+
IT Tickets Resolved
1,000+
Active Directory Accounts
8 certs
+ 1 in progress
/01

Network Administrator

CURRENT

J.F. Ahern Co.

June 2026 – Present

  • Architected and executed the enterprise migration from legacy Track-It! to Freshservice ITSM for 2,100+ users, building custom service catalogs, automated ticket routing, and departmental SLAs in collaboration with IT leadership.
  • Developed PowerShell automation scripts for Active Directory identity lifecycles, reducing onboarding provisioning time by 50% and deprovisioning turnaround by 60% across Joiner/Mover/Leaver workflows.
  • Packaged and deployed 60+ custom Win32 applications using Microsoft Intune, configuring silent installation switches and custom detection rules to accelerate modernization away from legacy SCCM.
/02

Information Technology Intern

City of Oconomowoc

June 2025 – May 2026

  • Acted as a primary technical contact for the Police Department and 12+ other municipal departments, ensuring rapid responses for mission-critical hardware, including MDTs, body-worn cameras, CCTV, servers, and firewalls.
  • Configured and troubleshot Unifi wireless networks and Fortinet/FortiGate IPsec VPN solutions, ensuring reliable and secure remote access for ~20 field iPads and GIS-enabled devices.
  • Led the Windows 11 OS migration for 50+ workstations, enforcing TPM and UEFI compliance to meet government security standards, alongside SSD migrations and storage expansions.
/03

Information Technology Intern

Sparton Corporation

October 2025 – April 2026

  • Architected a proof-of-concept Active Directory virtual network to implement on-premises Microsoft Edge data syncing, engineering a secure workaround for GCC High cloud restrictions.
  • Executed Joiner/Mover/Leaver processes for 1,000+ users, including Active Directory provisioning, role changes, and deprovisioning of accounts and applications.
  • Managed YubiKey hardware MFA lifecycle, including assignment, recovery, and secure user support.

Skills & Tools

Cloud & Identity: Active Directory, Microsoft Intune, M365 Administration, Group Policy (GPO), Hardware MFA (YubiKey, Token2), Exchange Online, Defender for Office 365Infrastructure: Windows Server (2016–2022), VMware vSphere & Proxmox VE, Endpoint Deployment, Windows 10/11, Ubuntu Linux, Apache & TomcatAutomation: Docker, PowerShell and Bash, PythonNetworking: Fortinet (FortiGate), VPN (IPsec/SSL), DNS, Network Troubleshooting, Wireshark, UEFI/TPM Security Standards, OpenSSLDevelopment: JavaScript / TypeScript, HTML / CSS, SQL, Git & GitHubProcess & Tools: ManageEngine ServiceDesk, ITIL Framework, Freshservice (ITSM), Spiceworks, Hesk Help Desk, Track-It!

Selected Work

Featured
Projects

PRJ.01Windows 11

Enterprise OS & Hardware Migration

Led the deployment of Windows 11 across 50+ municipal and Police Department workstations.

Windows 11Hardware UpgradesTPM/UEFI
PRJ.02Ubuntu Linux

Secure Internal Utility Deployment

Architected self-hosted internal utilities by deploying Stirling PDF on an Ubuntu Linux VM and Hesk Help Desk on Windows Server.

Ubuntu LinuxWindows ServerApache/Tomcat
PRJ.03VMware vSphere

Virtual Infrastructure Expansion

Provisioned and configured multiple Windows Virtual Machines within a VMware vSphere enterprise environment.

VMware vSphereWindows ServerVirtualization
PRJ.04Linux

Home Infrastructure Lab (Raspberry Pi Node)

Hybrid-Cloud & Infrastructure Hardening

LinuxDockerPi-hole
PRJ.05Linux

Luhbuntu (Custom Linux Distribution)

Custom OS Development

LinuxDebianBash Scripting
PRJ.06HTML

Interactive 2D Portfolio Game

Retro-style interactive portfolio with HTML Canvas, Firebase, and Formspree.

HTMLCSSJavaScript

Interactive

Portfolio
Game

Always under active development to reflect changes in my life and career.

Loading game…

(Best experienced on desktop)

Research

Beyond the Rack.

Are Quantum Computers a Cryptography Pandemic Waiting to Happen?

An exploration of post-quantum cryptography and what Shor's algorithm means for today's public-key infrastructure.

Read the Paper
Loading…

Get My Socials.

Join my professional network, explore my GitHub, or shoot me an email to collaborate.