L3 Senior LAN Network Engineer - Cisco DNAC & Campus Infrastructure Key Responsibilities Advanced LAN Support 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 9 K 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 Section Title: Skill Requirements Skill Requirements Required Skills Cisco Catalyst Center (DNAC) Cisco Catalyst 9 K Cisco Nexus Aruba CX OSPF BGP EIGRP STP Qo S SDA Cisco ISE Experience 7-10 years of LAN Engineering experience. 3+ years supporting Cisco DNAC. Experience handling major incidents. Preferred Certifications CCNP Enterprise Cisco SDA Specialization Aruba ACNP ITIL Foundation About HCLTech: We are HCLTech, one of the fastest-growing large tech companies in the world and home to 225,000+ people across 60 countries, supercharging progress through industry-leading capabilities centered around Digital, Engineering and Cloud. The driving force behind that work, our people, are diverse, creative, and passionate, raising the bar

📌 senior lan network engineer (Madrid)
🏢 HCLTech
📍 Madrid