Joe Yeom

Network Engineer with over 10 years of hands-on experience supporting and deploying enterprise network infrastructures across multi-site environments. Skilled in routing, switching, VPN technologies, and multi-vendor firewall platforms including FortiGate, SonicWall, and Meraki. Strong background in maintaining stable WAN/LAN connectivity, improving network reliability, and supporting hybrid on-prem and cloud environments.

Known for practical troubleshooting skills, clear communication, and consistent delivery of dependable network operations.

Networking

Routing & Switching (OSPF, BGP basics, VLANs, STP, EtherChannel)

IPSec VPN design & maintenance (branch connectivity, redundancy)

High-availability configurations and WAN stability tuning

Wireless networking (Meraki, Cisco)

Security

FortiGate / SonicWall firewall policies, VPN, and security zones

Access control enforcement and segmentation

Email security filtering (Barracuda)

Cloud & Infrastructure:

AWS: VPC, subnets, routing, security groups, EC2

VMware ESXi administration

Active Directory, Group Policy, Microsoft 365, Google Workspace

Veeam Backup & Disaster Recovery

Tools & Automation:

Basic Python/Ansible for small automation tasks

NEMS and other network/server monitoring tools

KW INTERNATIONAL, INC | Carson, CA

System & Network Administrator | 01/2024 – Present

 Maintain and support enterprise WAN/LAN connectivity across 40+ branch locations.

 Configure and manage FortiGate and Meraki platforms, applying firewall rules,

segmentation, and network policies.

 Build and maintain 36+ site-to-site IPSec VPN tunnels to ensure stable remote branch operations.

 Support AWS workloads including VPC networking, EC2 instances, and secure access between cloud and on-prem systems.

 Manage user access and identities for 500+ employees through Active Directory,

Microsoft 365, and Google Workspace.

 Perform routine maintenance, network monitoring, and troubleshooting to minimize downtime.

NASSER COMPANY, INC | Yorba Linda, CA

IT System Administrator | 05/2021 – 06/2023

 Managed VMware ESXi servers, Active Directory, and Exchange services to support daily operations.

 Administered SonicWall firewalls and Barracuda email filtering to strengthen network security.

 Performed backup operations and verified disaster recovery plans using Veeam.

 Supported VoIP, NAS, and ERP systems while providing general IT support for staff.

IK TELECOM | Buena Park, CA

Network & VoIP Engineer | 02/2020 – 05/2021

 Deployed client network infrastructure including VLANs, routing, and switching on

Cisco devices.

 Configured firewalls, routers, and site-to-site VPNs for secure client connectivity.

 Installed and maintained PBX and VoIP systems including SIP configuration and call routing.

DIGITAL WATCHDOG | Cerritos, CA

Product Test Engineer / Help Desk | 09/2014 – 01/2020

 Provided support for workstation, printer, and basic network issues for internal staff.

 Tested and validated IP/analog surveillance devices, firmware, and NVR systems.

Education Bachelor of Science: Information Computer Network Engineering 03/2008 to 02/2015 Dongseo University, South Korea