IT Network Administrator
Summary
Manages and secures an organization’s network infrastructure, including routers, switches, firewalls, and VPNs, ensuring reliable connectivity and performance.
An IT Network Administrator is responsible for the design, implementation, operation, security, and ongoing maintenance of an organization’s network infrastructure. This role ensures reliable connectivity, optimal performance, and protection of network resources across LAN, WAN, WLAN, and internet‑facing systems.
Key Responsibilities
- Configure, manage, and maintain routers, switches, firewalls, and wireless access points
- Monitor network performance, availability, and security using NMS tools
- Troubleshoot network outages, latency, and packet loss issues
- Implement VLANs, routing protocols (OSPF, BGP), NAT, and VPNs
- Enforce network security policies (firewall rules, IDS/IPS, access control)
- Perform backups, firmware upgrades, and documentation
- Support users and servers with network‑related issues
- Coordinate with ISPs, vendors, and internal IT teams
Required Skills
- Strong understanding of TCP/IP, DNS, DHCP, ARP, VLANs, and subnetting
- Hands‑on experience with routing and switching
- Firewall and VPN configuration (site‑to‑site and remote access)
- Network monitoring and troubleshooting
- Linux/Windows networking fundamentals
- Documentation and change management
Commonly Required Technologies
- Routers & Switches: MikroTik, Cisco, Ubiquiti, Juniper
- Firewalls: MikroTik, FortiGate, pfSense
- Wireless: CAPsMAN, UniFi, enterprise WLANs
- Tools: Wireshark, The Dude, Zabbix, PRTG
Certifications (Advantageous)
- MTCNA / MTCRE / MTCWE (especially valuable in SMBs and ISPs)
- CCNA / CCNP
- Network+
Industries Hiring Network Administrators
- Internet Service Providers (ISPs, WISPs)
- Corporate enterprises
- Data centers and cloud providers
- Educational institutions
- Managed Service Providers (MSPs)