Network Engineer
Quick Summary
Network Engineers design and maintain the systems that connect users, servers, and applications across an organization. They manage routing, switching, firewalls, and connectivity to ensure reliable and secure communication.
Day in the Life
A Network Engineer ensures that communication between devices and systems works reliably. Your day often begins by checking network monitoring dashboards for unusual spikes in traffic, outages, or dropped packets.
You may troubleshoot slow connectivity complaints, investigate packet loss, or diagnose issues with DNS and DHCP. Some days are calm and involve planned upgrades, while others require urgent incident response.
Network Engineers often configure switches, routers, and firewalls. You might implement VLAN segmentation, update routing tables, or adjust access control lists. You may also work on VPN tunnels connecting remote offices.
Security is deeply tied into networking. You collaborate with Security Analysts and Security Engineers to enforce firewall policies and detect suspicious traffic patterns.
Network Engineers frequently support cloud networking too, including AWS VPC architecture, subnets, routing tables, and hybrid connectivity.
Over time, many Network Engineers advance into Network Architect, Cloud Network Engineer, or Network Security Engineer roles.
Core Competencies
Scores reflect the typical weighting for this role across the IT industry.