We are looking for a hands-on Network Administrator to support and maintain critical network infrastructure in Brookhaven, New York. This Long-term Contract position is ideal for someone who enjoys solving connectivity issues, restoring service quickly, and keeping network environments stable across multiple facilities. The role requires an on-site presence five days a week and offers the opportunity to work with firewalls, switching, wireless, and SD-WAN technologies in a fast-paced operational setting.<br><br>Responsibilities:<br>• Diagnose and resolve day-to-day network issues involving firewalls, switches, wireless systems, and local area connectivity.<br>• Administer and troubleshoot Palo Alto firewall environments, including policy updates, configuration changes, and issue resolution.<br>• Configure, maintain, and upgrade Cisco switching infrastructure, including VLANs, trunk links, and related network settings.<br>• Support SD-WAN environments using Cisco or Meraki platforms by identifying faults and restoring reliable site connectivity.<br>• Manage and troubleshoot Aruba wireless networks to ensure consistent coverage and dependable user access.<br>• Provide network support for nearby facilities in the Brookhaven, New York area, with occasional local travel as needed.<br>• Assist with infrastructure rollouts, equipment installations, and deployment activities, including work that may occur during evenings or weekends.<br>• Handle physical network hardware as required, including moving or installing equipment weighing up to 50 pounds.