Senior Global Network Administrator

DigiCert; Pennsylvania; On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Generous time off policies.

Top shelf benefits.

Education, wellness and lifestyle supp

Job summary

DigiCert is seeking a seasoned Network Administrator to join the Corporate Network Infrastructure team. You will be the first responder for network incidents and will administer, troubleshoot, and support enterprise LAN, WAN, and wireless services across global offices.

You will configure switches/firewalls, manage VLANs, DNS, DHCP, VPNs, and work with service providers to resolve outages. Candidates should have 5+ years of experience, hands-on Palo Alto firewall experience, and Cisco/Arista

Qualifications

• 5+ years of enterprise network administration in a corporate office environment.
• Strong understanding of networking concepts and OSI model.
• Experience administering Palo Alto firewalls in an enterprise environment.
• Hands-on experience with Cisco and/or Arista switching platforms.
• Experience implementing and troubleshooting 802.1X authentication for wired and wireless environments.
• Strong knowledge of TCP/IP, VLANs, routing, switching, DNS, DHCP, VPNs, and network security fundamentals.
• Experience using packet capture and troubleshooting tools such as Wireshark.

Responsibilities

• Administer and support corporate LAN, WAN, and wireless network environments across global office locations.
• Configure, monitor, and troubleshoot switches, firewalls, and wireless infrastructure.
• Manage VLANs, routing, switching, DNS, DHCP, VPN connectivity, and network access services.
• Perform network performance monitoring and proactive issue resolution.
• Participate in incident response, troubleshooting, and root-cause analysis.
• Work with Internet service providers and carriers to diagnose and resolve outages and routing issues.

Skills

Enterprise network admin

OSI concepts

Palo Alto firewalls

Cisco/Arista switching

802.1X auth

TCP/IP

VLANs

DNS

DHCP

VPNs

Wireshark

Network security basics

Tools

Jira

Job description

DigiCert is seeking a seasoned Network Administrator to join the Corporate Network Infrastructure team. You will be the first responder for network incidents and will administer, troubleshoot, and support enterprise LAN, WAN, and wireless services across global offices.

You will configure switches/firewalls, manage VLANs, DNS, DHCP, VPNs, and work with service providers to resolve outages. Candidates should have 5+ years of experience, hands-on Palo Alto firewall experience, and Cisco/Arista