A Network Administrator is responsible for managing and maintaining an organization's computer networks. Their primary duties include:

• Monitoring network performance and troubleshooting issues.
• Installing, configuring, and updating network hardware and software.
• Ensuring network security through firewalls and intrusion detection systems.
• Performing regular backups and data recovery operations.
• Managing user access and permissions to network resources.
• Documenting network configurations and changes.
• Providing technical support to staff for network-related problems.
• Planning for future network growth and capacity needs.
• Collaborating with other IT team members to implement solutions.