– Sr. Network Engineer (L2)

Role: L2 – Senior Network Engineer

Experience Required: 4–8 Years

Employment Type: Permanent

Job Location: Gurugram

Working Days: 5 Days a Week

Job Overview

We are looking for an experienced L2 Senior Network Engineer with strong expertise in network operations, monitoring, troubleshooting, and infrastructure support. The role involves managing day-to-day network operations, monitoring network health, resolving L2 issues, and executing configuration changes under defined SOPs and guidance from L3 teams.

Key Responsibilities

1. Cisco DNAC Support

- Monitor network health, device compliance, and assurance dashboards.

- Assist in provisioning switches and access points using DNAC templates.

- Generate and analyze DNAC reports, including inventory, SWIM, topology, and client health.

- Perform basic troubleshooting of synchronization failures and telemetry issues.

2. Cisco ISE (NAC / EAP-TLS / MDM / RADIUS / TACACS )

- Monitor authentication logs and troubleshoot 802.1X authentication failures (EAP-TLS, PEAP).

- Verify endpoint posture assessments and MDM compliance status.

- Troubleshoot user and machine certificate-related issues.

- Perform ISE node and PSN health checks.

- Handle basic ISE operations, including endpoint addition, profiling checks, and session clearing.

- Escalate complex authentication and policy-related issues to L3 teams.

3. Cisco ThousandEyes

- Monitor agent health, alerts, and network performance.

- Validate synthetic tests and endpoint agent functionality.

- Troubleshoot basic connectivity and agent installation issues.

4. Fortinet – FortiGate, FortiAnalyzer & FortiManager

- Monitor firewall logs and security alerts through FortiAnalyzer.





- Assist with firewall rule reviews and rule lifecycle management.

- Execute standard configuration updates through FortiManager under guidance.

- Perform basic troubleshooting of VPN connectivity, interface flaps, and routing issues.

5. IT Asset Management

- Maintain and update network inventory, including switches, access points, routers, and firewalls.

- Track firmware versions, EOL/EOS status, and compliance requirements.

- Assist with spare inventory management and RMA coordination.

6. LAN Switching – Cisco / Brocade / Nexus

- Troubleshoot access-layer network issues involving VLANs, trunking, and STP.

- Perform switch port configuration, MAC address tracing, and interface health checks.

- Handle basic Cisco Nexus operations, including vPC checks and interface monitoring.

- Perform configuration backups and restoration activities.

7. Scripting & Automation Support

- Execute pre-built scripts using Python, Bash, and Ansible for routine automation tasks.

- Assist in log collection, report generation, and operational activities using automation tools.

8. DHCP Support

- Troubleshoot IP address conflicts and DHCP scope exhaustion.

- Validate DHCP leases and address assignment logs.

- Check DHCP relay configurations (IP Helper) and related connectivity issues.

9.



NIPS (Network Intrusion Prevention System)

- Monitor intrusion alerts and security events.

- Perform initial analysis of suspicious network activity and escalate findings to relevant teams.

- Validate sensor health and connectivity.

10. Cisco Wireless LAN Controller (WLC)

- Troubleshoot wireless client connectivity issues, including authentication failures, DHCP, and roaming.

- Monitor wireless controller and access point health.

- Modify WLAN configurations as per defined SOPs.

- Troubleshoot RF parameters, AP join issues, and client load-related problems.

Required Skills & Qualifications
- Strong understanding of L2/L3 networking fundamentals, including VLANs, STP, EtherChannel, DHCP, and basic routing.

- Hands-on experience in network monitoring, operations, and L2 troubleshooting.

- Familiarity with Cisco DNAC, Cisco ISE, Cisco ThousandEyes, and Cisco WLC.

- Working knowledge of Fortinet solutions – FortiGate, FortiAnalyzer, and FortiManager.

- Understanding of 802.1X authentication mechanisms, including EAP-TLS and PEAP.

- Familiarity with troubleshooting tools such as Wireshark, DNAC Assurance, ThousandEyes, and FortiAnalyzer.

- Basic scripting knowledge in Python, Bash, or Ansible.

- Valuable documentation, incident management, and change management skills.

Experience Requirements
- 4–8 years of relevant experience in Network Operations, Network Support, or Infrastructure Support.

- Experience in monitoring, troubleshooting, and executing network changes in an enterprise environment.

- Ability to handle L2 operational issues independently and coordinate with L3 teams for complex escalations.

📌 Cisco Ise– Senior Network Engineer (Gurugram)
🏢 Neev
📍 Gurugram