Senior Network Administrator

Our client, a well-established enterprise organization with a nationwide footprint, is seeking a Senior Network Administrator to join their Infrastructure team. This direct hire opportunity is ideal for a hands-on networking professional who enjoys balancing day-to-day operational support with enterprise infrastructure projects. The successful candidate will help maintain and modernize a large-scale network environment while partnering with internal teams and external vendors to ensure secure, reliable, and high-performing network operations. This is a hybrid position requiring 3 days onsite each week.

Responsibilities

• Support and maintain enterprise network infrastructure across corporate offices, remote locations, and data centers.
• Troubleshoot complex routing, switching, wireless, and network connectivity issues while performing root cause analysis.
• Lead network infrastructure projects, including hardware refreshes, upgrades, and modernization initiatives.
• Install, configure, and support enterprise networking equipment including switches, routers, wireless infrastructure, firewalls, and load balancers.
• Partner with vendors and managed service providers to support ongoing operations and project delivery.
• Develop and maintain technical documentation, implementation plans, and network diagrams.
• Support cloud networking initiatives and assist with disaster recovery and business continuity efforts.
• Travel occasionally to remote sites for network deployments and infrastructure upgrades.
• Mentor junior team members and collaborate across infrastructure teams to ensure successful project execution.

Requirements

• 6+ years of hands-on enterprise networking experience.
• Strong experience supporting Cisco switching, routing, and enterprise wireless environments.
• Experience troubleshooting complex network issues in a multi-site enterprise environment.
• Strong understanding of TCP/IP, routing, switching, VLANs, and overall network infrastructure.
• Experience leading infrastructure projects from planning through implementation.
• Experience working with third-party vendors and managed service providers.
• Strong technical documentation, communication, and problem-solving skills.
• Preferred experience with Juniper Mist, Cisco ISE, Cisco Nexus, Fortinet Firewalls, F5 Load Balancers, Azure and/or AWS networking, and network automation tools such as Ansible.