Data Center Network Migration Lead - Cisco 9300 Specialist

Nexzentek

Jersey City (NJ)

On-site

USD 124,000 - 179,000

Part time

9 days ago

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Job summary

Nexzentek in Jersey City, NJ is seeking a Senior Network Engineer for a multi-phase data center migration and network modernization project. This onsite role focuses on Cisco Catalyst 9300 deployments, Nexus 5K decommissioning, and Cisco ACI-integrated infrastructure migrations in a production environment.

The incumbent will perform cutovers, maintain Layer 2/3 connectivity, and support complex change-management processes across the data center network.

Qualifications

5+ years of hands-on network engineering experience.
Expertise with Cisco Catalyst 9300 (CAT9K).
Experience with enterprise switch refresh projects and migrations.
Strong understanding of Layer 2/3 networking concepts and change management processes.

Responsibilities

Upgrade Cisco Catalyst 9300 switches to IOS-XE releases.
Apply standardized C9300 base configurations and templates.
Migrate port configurations from legacy switches to Catalyst 9300 hardware.
Perform onsite switch replacements and maintenance-window cutovers.
Support migration from Nexus 5K to Catalyst 9300 infrastructure.
Assist staging, validation and deployment of network hardware.
Coordinate network migration activities tied to Change Requests.
Support Cisco ACI-connected uplink migration activities.
Troubleshoot connectivity issues during implementation and post-cutover validation.
Document implementation activities and changes.