IT Instructor • 6 Years in the Field

Joshua Cervantes

IT Instructor and Industry Practitioner. I teach networking, security, and systems from 6 years in the field, not from a textbook.

Enterprise IT Support & Operations turned educator. I translate real-world systems into lessons students can actually use.

Who I am

About

Portrait of Joshua Cervantes

I spent six years on the front lines of enterprise IT, doing Support and Operations, keeping systems, networks, and end users running. I've deployed and managed fleets of workstations, defended uptime, and dealt with the kind of messy, real-world problems that never show up in a textbook.

Now I'm putting that experience into teaching. What makes me a strong instructor isn't theory, it's that I've actually done the work. I can show students how a concept plays out in a live environment, why it matters, and where it breaks.

I teach bilingually in English and Tagalog, and I've worked with learners at every level, from absolute beginners touching a command line for the first time to students preparing for industry certifications.

  • 6 years enterprise IT
  • Support + Operations
  • Bilingual EN / Tagalog
  • All learner levels
What I teach

Teaching

I teach the subjects I've lived. Every topic below comes with field stories, live demos, and the context that turns memorization into understanding — delivered bilingually in English and Tagalog.

Networking

OSI & TCP/IP models, subnetting, routing & switching, VLANs — with hands-on labs in Cisco Packet Tracer.

Hardware & Computer Systems Servicing

PC assembly, troubleshooting, and maintenance aligned to CompTIA A+ competencies.

Security Fundamentals

Core security concepts, threats, hardening, and safe operations practices for everyday IT.

Intro to Programming

Foundations of programming and problem solving in C, C++, C#, Java, PHP, and SQL.

Live teaching demo

Delivering live IT lessons — slides, whiteboard, and a full class.

Joshua Cervantes presenting an IT lesson with slides to a class in a computer lab
Joshua Cervantes explaining a concept at the whiteboard during a live teaching demo
Joshua Cervantes teaching a full class of students in a computer lab
YouTube · Sir Vantes

See me teach, live

Watch a live teaching demo and see how I break down complex IT topics into clear, practical lessons.

Visit the channel
TikTok · @sir.vantes

Catch my latest clips

Helping senior high students pick the right course and IT students figure out their next move, straight talk, no sugarcoating. New clips every week.

Visit the profile
What I work with

Technical Skills

Six years of doing, not just knowing. Grouped by domain — these are tools and systems I've worked with hands-on in production environments.

99.9%
System uptime maintained
92%
First-contact resolution
80+
Workstations deployed

Networking

  • TCP/IP
  • OSI Model
  • Subnetting
  • Routing & Switching
  • VLANs
  • Cisco Packet Tracer
  • DNS / DHCP

Systems & Active Directory

  • Windows Server
  • Active Directory
  • Group Policy
  • User & Access Management
  • Backup & Recovery

Security

  • Endpoint Security
  • Hardening
  • Security Fundamentals
  • Incident Response
  • Patch Management

Operating Systems

  • Windows
  • Linux
  • macOS
  • Command Line

Programming & Scripting

  • PowerShell
  • Bash
  • C / C++
  • C#
  • Java
  • PHP
  • SQL

Cloud

  • Microsoft Azure (AZ-900)
  • Oracle Cloud Infrastructure
  • Cloud Fundamentals
What I build

Projects & Labs

Hands-on labs and projects — the kind of work I both do and teach.

Packet Tracer Lab: Multi-VLAN Network

Packet Tracer Lab: Multi-VLAN Network

A segmented campus network with inter-VLAN routing, DHCP, and access control — built and documented in Cisco Packet Tracer as a teaching reference.

  • Networking
  • Cisco
  • VLANs
  • Packet Tracer
Home Lab: Active Directory Domain

Home Lab: Active Directory Domain

A virtualized Windows Server domain with organizational units, Group Policy, and managed user accounts — used to demo enterprise identity concepts.

  • Windows Server
  • Active Directory
  • Virtualization
Automation Scripts & Configs

Automation Scripts & Configs

A collection of PowerShell and Bash scripts for provisioning, backups, and routine maintenance — refined over years of operations work.

  • PowerShell
  • Bash
  • Automation
Credentials

Certifications & Education

Credentials that back the experience.

CompTIA A+

CompTIA · 2025

CompTIA Network+

CompTIA

In progress

Google Cybersecurity Professional

Google

Microsoft Azure Fundamentals (AZ-900)

Microsoft

Oracle Cloud Infrastructure Foundations

Oracle

Master in Information Technology

Graduate Studies

In progress
Get in Touch

Let's talk

Hiring for a teaching role, or want to talk shop about IT? I'd love to hear from you.

yt.sirvantes@gmail.com