Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Hanzel Espinosa

Apopka,FL

Summary

Network Engineer with enterprise, service provider, and managed services experience, having led large-scale campus deployments, data center decommissions, and mission-critical network operations across banking and telecom environments. Known for strong ownership, adaptability, and accountability.

Overview

10
10
years of professional experience
1
1
Certification

Work History

Network Engineer II

Insight
Lake Mary, FL
04.2023 - 10.2025
  • Led the deployment of BNY Mellon’s new Lake Mary technology hub, delivering a large-scale campus network across two 4-story buildings, supporting ~6,000 users, including 4 routers, 4 distribution switches, 128 access switches, and ~120 Aruba wireless access points.
  • Configured and implemented Cisco routing and switching infrastructure using enterprise standards, while engineering site-specific IP addressing and VLAN segmentation to meet local design requirements.
  • Decommissioned two enterprise data centers and more than 10 production sites, safely removing and migrating over 2,000 devices (routers, switches, firewalls, wireless controllers) with zero incidents or outages.
  • Served as site lead for the Lake Mary deployment. Coordinated with cross-functional teams, vendors, and project managers to deliver the site on schedule and within scope.

Network Tech II

FirstLight Fiber
Albany, NY
09.2022 - 03.2023
  • Operated in a service provider NOC environment, supporting enterprise and educational customers
  • Diagnosed and resolved Layer 1–Layer 3 issues, including fiber faults, equipment failures, and routing-related outages.
  • Served as an escalation and coordination point during major outages and service-impacting events.

Network Tech II

T-Mobile
Maitland, FL
06.2015 - 08.2022
  • Provided operational support for managed customer networks, ensuring the availability of business-critical connectivity services.
  • Diagnosed and resolved Layer 1/Layer 2 transport and access-layer issues, including circuit outages, handoff failures, and equipment faults.
  • Managed incident tickets in a high-volume NOC environment, consistently meeting SLA requirements.

Education

Bachelor of Science - Information Technology

Seminole State College of Florida
Sanford, Florida, FL
12-2020

Skills

  • Network troubleshooting
  • Incident management
  • Ownership
  • Leadership
  • Delivery
  • Accountability
  • Adaptability

Certification

  • Former CCNA (CSCO12814396) Network Associate Routing and Switching

Timeline

Network Engineer II

Insight
04.2023 - 10.2025

Network Tech II

FirstLight Fiber
09.2022 - 03.2023

Network Tech II

T-Mobile
06.2015 - 08.2022

Bachelor of Science - Information Technology

Seminole State College of Florida
Hanzel Espinosa