Track Lead - Wireless Networking
Spain
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Job Description
Track Lead - Wireless Networking
Others, Barcelona

Job Summary

JD: L3 Senior LAN Network Engineer

Role Title

L3 Senior LAN Network Engineer - Cisco DNAC & Campus Infrastructure

Role 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

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

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

 

Other Requirements

Other Requirement : Advanced Wireless Engineering 
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion.