Erin Fernando

IT Administrator
Tucson, AZ  ·   ·  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.

Portfolio

Project: Nightingale

2026 · Failure Analytics · Workflow Automation · Live Metrics via Automated Monitoring

Live dashboard tracking 10 categories of process failures in my AI agent workflow. Interactive chart with daily updates.

View live tracker →

Operation: LAN Before Time

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

Network Architecture · Firewall Rules · VLAN Design

Network diagram and firewall rule table designed for a PCI-compliant small business.

View topology →

Small Business Firewall Rules

Zone-Based Firewall · PCI DSS · Inter-Zone Policy

Initial firewall ruleset for a PCI-compliant small business — zone-based policies covering POS, staff, guest, and management traffic.

View rules →

Blog

Guide To: PCI Compliance

For All Sizes
Part 1

The Importance of PCI Compliance

PCI DSS 4.0 · Breach Analytics · Compliance ROI

What compliance costs vs. what a breach costs. The business case for why security is a low-cost no-brainer.

See for yourself →
Small Business
Part 2

PCI-Compliant Network Roadmap

VLANs · Firewall Rules · Equipment Budget

A simple, affordable roll-out strategy for small businesses that handle card transactions — budget-friendly equipment, easy to implement.

View roadmap →
Small Business
Part 3

Firewall & VLAN Rules

Firewall Policy · VLAN Segmentation · Inter-VLAN Routing · PCI DSS

Complete firewall ruleset with VLAN segmentation, inter-zone policies, and DNS filtering for a PCI-compliant small business.

View rules →
Small Business
Part 4

PCI Hardening Basics

Endpoint Protection · VPN · Password Policy · Windows & macOS Tabs

Practical hardening guide with platform-specific recommendations for Windows and macOS — endpoint protection, VPN, password managers, POS tamper checks.

View guide →
Small Business
Part 5

Employee Security Training

Phishing · Social Engineering · Incident Response · PCI Requirement 12.6

Ready-to-use training outline for front-line staff — phishing, POS tamper checks, password hygiene, and what to do when something goes wrong.

View training guide →
Small Business
Ransomware

Ransomware Backup Strategy

Backup Tiers · Encrypted SSDs · Air-Gapped Storage · Calendar Reminders

Three-tier backup plan with encrypted SSD rotation, cloud sync, and one-click calendar reminders for backup schedules.

View strategy →

Certifications

CompTIA Security+ Certified badge
CompTIA Security+ Earned May 2026

Technical Skills

Operating Systems

Windows 10, Windows 11, Windows Server 2022

Networking

TCP/IP, DNS, DHCP, VPN, 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, vendor management, IT asset management, subscription and license auditing, root cause analysis

Web

HTML, CSS, small business website design

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.

Education

Marana High School

Diploma, May 2012

Honor Roll. Coursework in Computer Programming.

Contact

Download Resume (PDF)
SHA-256: CD1DCB79DF803CA5BFF52A0F861C92970ACA7968EA7676865023A4D16CE29DA6