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Jax Riddell

Jax Riddell

IT & Systems Support

B.S. Computer Science · Lamar University · Expected Dec 2026

CompTIA Security+ (SY0-701)
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Technical Skills

DHCP · DNS · routing · Group Policy · SIEM · ticketing workflows

Operating Systems

Linux / UNIX

Windows

Systems & Networking

TCP/IP & DNS

Active Directory

Firewalls & NAT

VirtualBox

Tools & Platforms

Git

AWS

Bash / CLI

SQL

Python

Experience

CS Success Tutor

Lamar University — Computer Science Department

Jan 2025 – Dec 2025

  • Provided technical support for students across Linux and Windows environments, diagnosing software and OS-level issues.
  • Used ticketing systems to prioritize requests, document resolutions, and track recurring problems.
  • Explained systems concepts including networking, operating systems, and security fundamentals during tutoring sessions.

Produce — Perishables Representative

H-E-B

Aug 2023 – Present

  • Responded to inventory and workflow issues under time pressure in a high-volume retail environment.
  • Coordinated with team members through a shared ticketing workflow for stock exceptions and operational blockers.
  • Maintained accuracy and communication standards during peak customer traffic.

Projects

Active Directory Homelab

Windows Server 2025 · VirtualBox

Mar 2026 – Apr 2026

  • Deployed Windows Server 2025 domain controller in VirtualBox with AD DS, DNS, and dual-adapter internal networking.
  • Provisioned users, security groups, and OUs via PowerShell; enforced password and lockout policies with GPOs.
  • Forwarded domain logs to Splunk SIEM on Ubuntu for real-time alerting.
  • Deployed osTicket on IIS with MySQL to simulate enterprise help desk workflows.

pfSense Firewall Homelab

pfSense · LAN/WAN segmentation

Jan 2026 – Feb 2026

  • Configured pfSense with LAN/WAN segmentation, DHCP scopes, and NAT rules.
  • Troubleshot Layer 2/Layer 3 issues including DHCP conflicts and routing failures.
  • Validated connectivity with ICMP testing and DHCP lease verification.