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Arthur Yee

@arthuryee

Network Operations Engineer at UnitedHealth Group / Optum Care, troubleshooting enterprise networks and restoring services in a 24×7 NOC.

United States

Message

At UnitedHealth Group / Optum Care, I supported enterprise network infrastructure in a 24×7 NOC/Command Center, troubleshooting connectivity issues, device alerts, and circuit problems. I used Splunk, LogicMonitor, PRTG, and ServiceNow to investigate incidents, document resolutions, and support root cause analysis.

At AHEAD Managed Services (MSP), I supported enterprise customers across Cisco and Meraki environments, improving monitoring through alert tuning and false-positive reduction. Earlier, at Windstream, I supported ISP/carrier networks and participated in a network bifurcation project; at Rockwell Automation, I supported data center operations and Cisco networking.

Experience

Work history, roles, and key accomplishments

Network Operations Center / Command Center Analyst

UnitedHealth Group / Optum Care

Jun 2024 - Aug 2025 (1 year 2 months)

Supported enterprise network infrastructure within a 24×7 NOC/Command Center environment, monitoring routers, switches, WAN connectivity, and critical network services. Performed Tier II troubleshooting and incident remediation for connectivity issues, device alerts, circuit problems, and service-impacting events.

Splunk LogicMonitor PRTG ServiceNow ITIL Incident Management Root Cause Analysis Network Monitoring WAN Routers Switche

NOC Administrator

AHEAD Managed Services

Oct 2021 - Jun 2023 (1 year 8 months)

Supported multiple enterprise customers within an MSP 24×7 Network Operations Center environment. Performed Tier 2 network troubleshooting across Cisco and Meraki environments involving routing, switching, WAN connectivity, VLANs, firewalls, wireless technologies, and IPSec/GRE VPNs.

Cisco Meraki Routing Switching WAN VLAN Firewalls Wireless IPSEC GRE VPN LogicMonitor PRTG Solarwinds Datadog Dynatrace ThousandEyes ServiceNow VSphere AWS Azure SD WAN Alert Tuning Run Books Incident Management

Network Operations Engineer

Windstream

May 2019 - Dec 2020 (1 year 7 months)

Supported ISP/carrier network infrastructure, troubleshooting routers, switches, WAN circuits, transport networks, and customer connectivity issues. Performed advanced troubleshooting involving routing, switching, connectivity issues, and carrier network services.

Routing Switching WAN Transportation Infoblox DNS IPAM Cacti VRFs Ansible Zabbix Network Segmentation IP Addressing Subnetting Router Staging Hardware Diagnostics

Data Center Engineer

Rockwell Automation

Aug 2018 - Jun 2019 (10 months)

Supported enterprise data center operations including server infrastructure, hardware troubleshooting, and production environment maintenance. Performed rack-and-stack activities including installation, mounting, cabling, labeling, and initial hardware setup for servers and network equipment.

Data Center Operations Rack And Stack hardware troubleshooting Cisco Networking Wireshark Visual Fault Locator (VFL)Cable Management Remote Hands Support

Tier 2 Network / Telecom Support

Progressive Insurance

Aug 2015 - Aug 2017 (2 years)

Provided Tier 2 escalation support for enterprise network and telecom issues across a large corporate environment. Supported infrastructure troubleshooting for 500+ enterprise servers and resolved Avaya telecommunications issues.