Network Administrator L2 & L3

Key Responsibilities*

Network Operations & Support

Administer and support LAN, WAN, WLAN, and Internet connectivity.

Monitor network performance, availability, and capacity using standard tools.

Perform incident management, troubleshooting & root cause analysis.

Ensure network uptime and adherence to SLAs.

Configuration & Maintenance

Configure & maintain routers, switches & wireless controllers.

Perform basic firewall & VPN device administration.

Execute standard changes, patching, firmware upgrades & backups.

Implement approved network design changes following standards.

Security & Compliance

Administer firewall rules & VPN user settings.

Support network segmentation and access controls.

Help ensure compliance with security and governance requirements.

Assist in vulnerability remediation & audit activities.

Monitoring & Documentation

Monitor alerts, logs & events; take proactive preventive actions.

Maintain diagrams, documentation & network asset inventory.

Update runbooks, SOPs & operational procedures.

Collaboration & Escalation

Work with Network Architects/Sr. Engineers for complex issues.

Coordinate with vendors & ISPs for issue resolution.

Escalate unresolved issues per ITIL/Incident Management process.

Continuous Improvement

Identify recurring problems & contribute to longterm fixes.

Participate in problem management & PIR discussions.

Support automation & network standardization initiatives.