Essential Functions: Design, implement, configure, monitor, and maintain global Wide Area Network (WAN) and Local Area Network (LAN) infrastructure, including Software-Defined WAN (SD-WAN), Multiprotocol Label Switching (MPLS), switches, routers, firewalls, wireless systems, Voice over Internet Protocol (VoIP), Virtual Private Network (VPN), and multi-factor authentication (MFA). In-depth knowledge of networking technologies and protocols, including but not limited to, TCP/IP, DNS, DHCP, VPNs, VLANs, routing, switching, WAN, LAN, wireless networking, and VoIP systems.