Senior Network Engineer

• Job Openings: 1
• Experience: 6-15Yrs
• Published On: Aug 28, 2026, 12:51 pm

Job Description

Role: Senior Network Engineer

Location: Jersey City, NJ Onsite

Overview:

We are seeking a highly skilled Senior Network Engineer to support a large-scale enterprise network modernization and data center migration initiative. This role will focus on Cisco Catalyst 9300 deployments, Cisco Nexus 5K decommissioning, network cutovers, and Cisco ACI-integrated infrastructure migrations within a production environment.

The ideal candidate is a hands-on engineer with deep experience in Cisco enterprise networking, switch migrations, maintenance-window implementations, and data center operations.

Project Details

• Role Type: Contract / Project-Based
• Location: Jersey City, NJ Onsite (Data Center Environment)
• Duration: Multi-phase migration project
• Schedule: Must be available for maintenance windows and after-hours cutovers as required

Responsibilities

• Upgrade Cisco Catalyst 9300 switches to Cisco-recommended IOS-XE releases
• Apply standardized C9300 base configurations and templates
• Migrate existing port configurations from legacy switches to new Catalyst 9300 hardware
• Perform onsite switch replacements and execute maintenance-window cutovers
• Support migration of network connections from Cisco Nexus 5K environments to new Catalyst 9300 infrastructure
• Assist with staging, validation, and deployment of network hardware
• Coordinate and execute network migration activities tied to approved Change Requests (CRs)
• Support Cisco ACI-connected uplink migration activities
• Troubleshoot Layer 2 and Layer 3 connectivity issues during implementation and post-cutover validation
• Work closely with internal engineering teams to ensure successful deployment and minimal operational impact
• Document implementation activities, migration procedures, and technical changes

Required Qualifications

• 5+ years of hands-on network engineering experience
• Strong expertise with:
• Cisco Catalyst 9300 (CAT9K) switches
• Cisco Nexus 5K platforms
• Cisco IOS-XE
• Cisco ACI environments
• Experience with:
• Enterprise switch refresh projects
• Network migrations and cutovers
• Data center networking
• Configuration migration and deployment
• Maintenance-window implementations
• Strong understanding of Layer 2 and Layer 3 networking concepts
• Experience working within structured change management processes
• Ability to work onsite and support after-hours maintenance activities when required

Preferred Qualifications

• CCNP or CCIE certification
• Experience with Cisco FEX environments
• Previous enterprise data center migration experience
• Experience supporting high-availability production networks

Skills

• Data Center
• Cisco Nexus Dashboard
• Cisco Catalyst

Work Location

Jersey City, New Jersey, New Jersey, United States