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 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 Section Title: Skill Requirements Skill Requirements Required Skills * Cisco Catalyst Center (DNAC) * Cisco Catalyst 9K * Cisco Nexus * Aruba CX * OSPF * BGP * EIGRP * STP * QoS * 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. Th

📌 Senior LAN Network Engineer (Barcelona)
🏢 HCLTech
📍 Barcelona