Open to opportunities

Stephen Yang

@stephenyang

Senior Network Engineer specializing in enterprise routing, security, and cloud networking with strong incident leadership.

United States

Message

What I'm looking for

I seek remote full-time or contract network engineering roles focused on reliability, security, cloud networking, incident leadership, and opportunities to improve automation and operational excellence.

I am a Senior Network Engineer with 7–10 years' experience owning, designing, and operating large-scale enterprise network infrastructure across on-prem and cloud environments. I focus on routing, switching, firewall security, load balancing, DNS/DHCP/IPAM, and Azure networking while serving as an escalation engineer for Sev-1 incidents.

I've driven reliability and operational excellence through certificate automation, firewall migrations, proactive monitoring, and cloud networking solutions, delivering high SLA compliance and reduced risk across regulated and global environments.

Experience

Work history, roles, and key accomplishments

Current

Senior Network Engineer

Current

Centene Corporation

Jun 2023 - Present (2 years 7 months)

Own and operate enterprise DNS/DHCP/IPAM services and design application delivery with Citrix ADC, reducing manual certificate risk via AppViewX and restoring Sev-1 outages as escalation lead.

AppViewX Aviatrix Cisco ACI DNS DHCP IPAM Incident Response

Network Engineer / Cyber Security Engineer

HealthEquity, Inc.

May 2021 - Jun 2023 (2 years 1 month)

Owned Palo Alto firewall policy design and lifecycle with Panorama, improved MTTR via LogicMonitor, and delivered 95%+ SLA compliance across on-prem and Azure network services.

Palo Alto Networks Cisco ASA LogicMonitor FireMon MTTR SLA Management

Network Engineer

Eurofins

Oct 2020 - May 2021 (7 months)

Designed and deployed Check Point CloudGuard firewalls in Azure, led migration from Cisco ASA to Check Point 6000/7000 series, and implemented SNMPv3 and AAA for improved monitoring and security.

Cisco ASA Firewall Migration NAT

Network Engineer

Macquarie Group

Apr 2018 - Apr 2020 (2 years)

Supported a global network across 25+ countries, resolved BGP routing issues affecting WAN stability, and managed F5 LTM/GTM for application delivery while acting as escalation for WAN and VPN outages.

BGP F5 LTM Cisco ASA IronPort Solarwinds Splunk WAN Troubleshooting

Network Administrator

Southern Glazer’s Wine & Spirits

Aug 2017 - Feb 2018 (6 months)

Supported nationwide WAN/LAN/WLAN for 20,000+ users, deployed branch network infrastructure, assisted with post-acquisition integrations, and reduced ticket backlog by 75%.

WAN Integration Troubleshooting