Job Summary
The L3 LAN Engineer serves as the highest technical escalation point for enterprise LAN infrastructure and is responsible for advanced troubleshooting, design support, capacity planning, lifecycle management, automation, and major incident resolution.
Key Responsibilities
- Act as L3 escalation point for critical LAN incidents.
- Perform advanced troubleshooting across campus networks.
- Support large-scale Cisco and Aruba switching environments.
- Troubleshoot complex routing and switching issues.
LAN Technologies
- Cisco Catalyst 9K
- Cisco Nexus
- Aruba CX
- HPE Comware
- SDA (Software Defined Access)
Cisco Catalyst Center (DNAC)
- Device onboarding and provisioning
- Assurance Management
- Software Image Management (SWIM)
- Template deployment
- Compliance management
- SDA operational support
Problem Management
- Lead Root Cause Analysis (RCA).
- Identify recurring infrastructure issues.
- Implement permanent corrective actions.
- Maintain technical knowledge articles.
Upgrade & Lifecycle Management
- IOS-XE upgrades
- Switch refresh initiatives
- Software lifecycle planning
- Validation and rollback testing
Capacity & Performance Management
- Capacity forecasting
- Utilization analysis
- Performance optimization
- Infrastructure modernization
Security & Compliance
- Vulnerability remediation
- Security advisory reviews
- Configuration compliance audits
- Network segmentation support
Automation
- Python scripting
- Ansible automation
- DNAC API integrations
Required Skills
- Cisco Catalyst Center (DNAC)
- Cisco Catalyst 9K
- Cisco Nexus
- Aruba CX
- OSPF
- BGP
- EIGRP
- STP
- QoS
- SDA
Cisco ISE
Skill Requirements
- 7-10 years of LAN Engineering experience.
- 3+ years supporting Cisco DNAC.
- Experience handling major incidents.
Other Requirements
- CCNP Enterprise
- Cisco SDA Specialization
- Aruba ACNP
- ITIL Foundation