Senior Network Engineer

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. 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 Experience supporting high-availability production networks Compensation Starting at $125,000 per year, with the potential for a higher offer based on experience, certifications, and technical expertise. VectorUSA is a proud Equal Opportunity Employer/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. #J-18808-Ljbffr