Descripción del trabajo

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:
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📌 Senior Lan Network Engineer (Madrid)
🏢 HCLTech
📍 Madrid