Infrastructure • Support • Security-minded

I help keep systems reliable, secure, and usable.

I’m an Information Systems Technician and soon-to-be BS graduate focused on infrastructure, endpoint management, and high-quality end-user support. I enjoy solving real problems for real people, with a strong emphasis on doing things the right way.

Windows • Microsoft 365 • AD Networking & VPN Security-first mindset
About

Who I am

I bridge the gap between end-users, infrastructure, and security by combining hands-on technical skills with clear communication and documentation.

I’m Christopher Montelongo, an Information Systems student and IT technician based in the DFW area. I’ve worked across helpdesk, infrastructure, and operations—supporting Windows environments, Microsoft 365, networking equipment, and line-of-business applications.

I enjoy taking messy, unclear technical problems and turning them into well-documented, repeatable solutions. My experience spans:

  • • Day-to-day support for users across different departments and skill levels
  • • Troubleshooting authentication, connectivity, and endpoint issues
  • • Working with vendors, IT leadership, and cross-functional teams
  • • Building a security-conscious approach into everyday IT operations

Outside of work and school, I spend time building out my home lab, working through security platforms like TryHackMe, and refining my understanding of how real-world systems behave under load, failure, and attack.

I’m especially interested in roles where I can:

  • • Support and harden infrastructure at scale
  • • Own problems from ticket to resolution and documentation
  • • Grow into more advanced security or infrastructure engineering work
Skills

What I work with

A mix of infrastructure, endpoint, networking, and security-oriented skills I use in school, work, and my home lab.

Windows 10/11 • Windows Server Active Directory / Entra ID Microsoft 365 (Teams, SharePoint, OneDrive) VPN, basic routing & switching Ticketing & ITSM workflows Endpoint security fundamentals PowerShell basics Python & Java (academic + projects) Home lab / virtualization

Infrastructure & Support

  • • User & workstation support (Tier 1 & 2)
  • • Endpoint deployment & imaging
  • • Basic Group Policy awareness
  • • Printer, POS, and peripheral support
  • • Remote access & RDP troubleshooting

Security & Reliability

  • • Security-first mindset in day-to-day IT
  • • Patch/updates coordination with minimal disruption
  • • TryHackMe / lab-based security practice
  • • Account, MFA, and access troubleshooting
  • • Documentation & knowledge base updates
Experience

Where I’ve been applying it

A snapshot of roles and environments where I’ve supported users, systems, and infrastructure.

Information Systems Support Technician
Six Flags Over Texas • Arlington • 2023 – Present
Provide Tier 1–2 support for Windows endpoints, Microsoft 365, and network-connected systems. Own tickets from intake to resolution, coordinate with vendors when needed, and keep users in the loop with clear communication. Focus areas include endpoint stability, account & access issues, VPN, and incident documentation.
Projects

Selected work & labs

A few examples that show how I think about infrastructure, security, and building useful tools.

Personal Finance Web App
Python • Flask • SQLite • IIS (Reverse Proxy)

A small full-stack app for tracking personal expenses, deployed behind IIS on a Windows Server. Focused on authentication, data validation, and simple, reliable deployment.

Python Flask IIS SQLite Windows Server
Java Desktop Inventory Tool
Java • JavaFX • SQLite

Inventory management app built for a real muffler shop, modeled with proper database design, JavaFX UI, and DAO pattern for clean separation of concerns.

Java JavaFX SQLite
Security Labs & TryHackMe
TryHackMe • Windows & Network Security

Ongoing hands-on work in lab environments covering recon, basic exploitation concepts, Windows security hardening, and blue-team perspectives on monitoring and incident response.

Security Fundamentals TryHackMe Blue-team mindset
Certifications

Validated knowledge

Industry certifications that back up my hands-on experience in support and infrastructure.

CompTIA A+
CompTIA
Issued: 2025 • Active
CompTIA Network+
CompTIA
Issued: 2025 • Active
CompTIA Security+ (In Progress)
CompTIA
Actively studying and labbing
Contact

Let’s talk

If you’re looking for someone who can support your users, stabilize your endpoints, and bring a security-conscious mindset to everyday IT operations, I’d love to connect.
Email me View LinkedIn