A Network Engineer's role involves designing, implementing, and maintaining the organization's network infrastructure. This includes setting up and managing networks like LAN (Local Area Network), WAN (Wide Area Network), and cloud networks. They are also responsible for troubleshooting network issues, ensuring network security, and optimizing network performance. A Network Engineer works with a range of network hardware like routers, switches, and firewalls, and network management software. In some organizations, Network Engineers might also be involved in managing telecommunication networks. Overall, they ensure the smooth running of the network, enabling the organization's computer systems to communicate efficiently.