Summary
Overview
Work History
Education
Skills
Certification
Timeline
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Sergio Sanchez

Las Vegas,USA

Summary

Telecommunications professional with solid experience in network design, system optimization, and troubleshooting. Strong focus on team collaboration and achieving results, adapting seamlessly to changing needs. Equipped to drive impactful solutions and enhance operational efficiency. Excel at problem-solving, collaboration, and adaptability, ensuring seamless project execution and innovation in telecommunications projects.


Overview

7
7
years of professional experience
1
1
Certification

Work History

Network Administrator

Dzinex Consulting
05.2024 - Current
  • Designed and deployed secure network infrastructures using Cisco, Fortinet, and Sophos hardware.
  • Managed VPNs and firewall rules across multi-site environments using PfSense, Mikrotik, Unifi and Sophos.
  • Performed proactive monitoring and network diagnostics with Zabbix , Domotz and Nagios.
  • Executed hardware/software upgrades and maintained optimal LAN/WAN performance.
  • Performed troubleshooting for Unifi, Sophos, Cisco, and packet analysis.
  • Collaborated on SD-WAN activation and network cutover.

Network Technician

Nerds to Go
01.2024 - 04.2024
  • Installed and maintained wired/wireless networks using Unifi, Meraki, and PfSense.
  • Supported small business and home network security, implementing solutions with Sophos firewalls.
  • Deployed and configured Nextiva PBX systems for VoIP communication.
  • Provided guidance for MSP onboarding and leveraged Domotz for remote monitoring.

IT Technical Support

Cyberdental Corp
03.2022 - 12.2023
  • Configured and maintained Fortinet, Cisco and Unifi network equipment.
  • Set up secure remote access with SSL/IPsec VPNs on PfSense and Fortinet platforms.
  • Conducted end-to-end PBX implementations (Grandstream, Nextiva) and resolved network-layer issues.
  • Mentored junior IT support engineers, fostering a collaborative environment that promoted professional growth and skill development.
  • Managed help desk tickets for improved response times and resolution rates.

Level 2 IT Support Engineer

New Age Data
07.2018 - 09.2021
  • Managed enterprise infrastructure with Cisco and Fortinet routers and switches.
  • Modeled and deployed LAN/WAN environments across multiple data centers.
  • Provided remote support, scripting automation for repeated tasks with SQL and Java.
  • Managed high-stress situations effectively, maintaining professionalism under pressure while resolving disputes or conflicts.
  • Installed, modified, and repaired software and hardware to resolve technical issues.
  • Provided remote support to users across multiple locations, demonstrating flexibility and adaptability in problem solving.

Education

Bachelor of Science - Telecommunications & Electronics Engineering

Central University "Marta Abreu" of Las Villas
07.2016

Skills

  • Network Design & Implementation (LAN/WAN/VPN)
  • Firewall & Security Appliance Configuration: Cisco, Juniper, Fortinet, Sophos, PfSense
  • Wireless Networking: Unifi, Meraki, Ruckus
  • Network Monitoring Tools: Nagios, Zabbix, Domotz, OvrC
  • Routing & Switching Protocols (TCP/IP, OSPF, VLANs, DHCP, DNS)
  • VoIP & PBX (Nextiva, Grandstream)
  • System Troubleshooting & Optimization
  • Scripting: Basic Java, SQL
  • Technical Documentation & End-user Support

Certification

- Sophos Firewall Certified Engineer

Timeline

Network Administrator

Dzinex Consulting
05.2024 - Current

Network Technician

Nerds to Go
01.2024 - 04.2024

IT Technical Support

Cyberdental Corp
03.2022 - 12.2023

Level 2 IT Support Engineer

New Age Data
07.2018 - 09.2021

Bachelor of Science - Telecommunications & Electronics Engineering

Central University "Marta Abreu" of Las Villas

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Sergio Sanchez