L2 Network Administrator

Description :

1) Act as an escalation point for complex network issues that L1 support cannot resolve :

- Diagnose and resolve problems related to :

1. Routers, switches, firewalls

2. LAN/WAN connectivity

3. VPNs and remote access

4. Wireless networks

- Perform packet captures and log analysis to troubleshoot network issues.

2) Network Maintenance :

- Monitor network performance and ensure system availability and reliability.

- Implement routine configuration changes and firmware/software updates on network devices.

- Maintain network diagrams and documentation.

- Conduct regular network audits and performance tuning.

3) Implementation & Configuration :

- Assist in deploying new network devices (routers, switches, firewalls).

- Configure VLANs, routing protocols (OSPF, BGP, EIGRP), and ACLs.

- Implement QoS, NAT, and port forwarding as needed.

- Participate in network upgrades and migration projects.

4) Documentation & Reporting :

- Maintain accurate records of configurations, incidents, and resolutions.

- Create and update Standard Operating Procedures (SOPs).

- Provide detailed incident and change reports for stakeholders.

5) Security & Compliance :

- Implement and monitor basic security controls (firewall rules, access policies).

- Ensure compliance with internal security policies and external regulations.

- Respond to network-related security alerts and assist in investigations.

6) Collaboration & Communication :

- Work closely with L1 and L3 teams, as well as with other IT departments (Server, Security, etc.).

- Escalate unresolved issues to L3 or vendors as needed.

- Participate in on-call rotations or after-hours maintenance windows.

7) Typical Skills/Tools :

- Strong knowledge of TCP/IP, DNS, DHCP, VLANs, routing, and switching.

- Experience with Cisco, Juniper, or other networking equipment.

- Familiarity with network monitoring tools like SolarWinds, Nagios, or PRTG.

- Proficiency in CLI for routers/switches and possibly scripting (Python, Bash).

- Understanding of ITIL processes and ticketing systems like ServiceNow.