Erin Fernando

IT Administrator
Tucson, AZ  ·  (858) 243-6917  ·  fernando.erin.c@gmail.com  ·  LinkedIn
Download Resume (PDF)
SHA-256: CD1DCB79DF803CA5BFF52A0F861C92970ACA7968EA7676865023A4D16CE29DA6

About

Ten years as the sole IT admin for a small business — I built the network, brought it to PCI compliance, and owned every problem end-to-end. CompTIA Security+ certified, 20+ years building and troubleshooting hardware. Looking for a full-time IT role in Tucson where I can bring that to a team.

Technical Skills

Operating Systems

Windows 10, Windows 11, Windows Server 2022

Networking

TCP/IP, DNS, DHCP, VPN (NordLayer), firewall configuration, network segmentation, VLANs, Wi-Fi site surveys, wireless bridging (Ubiquiti airMAX), cable management

Security

CompTIA Security+, PCI compliance, endpoint protection (Avast Small Office), endpoint management, antivirus management, access control, password policies, phishing awareness training, backup and disaster recovery, incident response

Systems & Cloud

Microsoft 365 administration, OneDrive, Active Directory (AD), Group Policy (GPO), Hyper-V, domain and tenant migrations, remote desktop support

Hardware

20+ years building PCs — component selection, diagnostics, hardware-level troubleshooting, hardware configuration

Support

Technical support, help desk, remote support, end-user training, documentation, error reporting, vendor management, IT asset management, asset lifecycle management, subscription and license auditing, root cause analysis

Web

HTML, CSS, small business website design

Certifications

CompTIA Security+ May 2026

Experience

IT Administrator

2016 – Present
Oasis at Wild Horse Ranch  ·  Contract: Project-based + On-Call  ·  Tucson, AZ

Meeting the various needs of an indoor/outdoor wedding space was often difficult. They needed nighttime maintenance, remote work, in-office installations, extensive Wi-Fi coverage.

Earlier Roles (2012 – 2016)

Married to an active-duty Navy servicemember during this period — short tenures reflect military relocations.

Library Page

July 2012 – October 2014
Geasa-Marana Public Library

Troubleshot public computers and printers, taught one-on-one computer classes to patrons, and handled front-desk customer service. First role where I explained technical concepts to non-technical users on a daily basis.

Sales Associate (Seasonal)

October 2014 – January 2015
Best Buy

Sold consumer tech during the holiday season. Leaned on years of PC-building knowledge to help customers pick the right hardware.

Crew Member

January 2016 – October 2016
Dunkin' Donuts

Fast-paced customer service — point-of-sale (POS) operations, cash handling, sales floor. Transitioned to the IT admin contract at Wild Horse Ranch after this role.

Lab & Side Work

Windows Server and Active Directory (AD) Lab

I was concerned about my lack of training on common tools used by larger firms, so I used AI to generate structured lab exercises, tailored to my Security+ coursework and experience level, for learning Active Directory. I spun up a Windows Server 2022 as the domain controller, and joined three other Windows 11 VMs. From there I established a few GPOs, like standardized desktop backgrounds and password hardening measures, mapped a network drive and shared it with role-based access control (RBAC), to learn the workings of Active Directory better.

AI-Driven Business Operations

Designed a workflow using specialized AI agents as force multipliers for marketing analytics, drafting complex documents, security auditing, and streamlining vendor communication. Creating an automated workflow for baseline productivity tasks.

Portfolio

Operation: Casita Unwired

2017 · Ubiquiti airMAX · WDS Bridge · PtP Wireless

Extended internet to a detached building via rooftop wireless bridge — running unattended since 2017.

View documentation →

Small Business Network Topology v1

2019 · Cisco Meraki · VLANs · Firewall Rules · PCI Compliance

Built a PCI-compliant network from scratch for a venue processing card transactions daily.

View documentation →

Small Business Network Topology v2

2026 · Cisco Meraki · VLANs · Firewall Rules · Cross-VLAN Routing

Redesigned with isolated VoIP and printer VLANs — tighter segmentation, same print access.

View documentation →

Education

Marana High School

Diploma, May 2012

Honor Roll. Coursework in Computer Programming.

Contact

Download Resume (PDF)
SHA-256: CD1DCB79DF803CA5BFF52A0F861C92970ACA7968EA7676865023A4D16CE29DA6