Network Administrator - Palo Alto

Description 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.

Responsibilities:

• Diagnose and resolve day-to-day network issues involving firewalls, switches, wireless systems, and local area connectivity.

• Administer and troubleshoot Palo Alto firewall environments, including policy updates, configuration changes, and issue resolution.

• Configure, maintain, and upgrade Cisco switching infrastructure, including VLANs, trunk links, and related network settings.

• Support SD-WAN environments using Cisco or Meraki platforms by identifying faults and restoring reliable site connectivity.

• Manage and troubleshoot Aruba wireless networks to ensure consistent coverage and dependable user access.

• Provide network support for nearby facilities in the Brookhaven, New York area, with occasional local travel as needed.

• Assist with infrastructure rollouts, equipment installations, and deployment activities, including work that may occur during evenings or weekends.

• Handle physical network hardware as required, including moving or installing equipment weighing up to 50 pounds. Requirements • Proven experience supporting enterprise network environments in an on-site role.

• Strong hands-on knowledge of Palo Alto firewalls, including troubleshooting and configuration of PAN-OS environments.

• Solid experience with Cisco networking, including switch configuration, VLANs, trunking, and firmware or software upgrades.

• Working understanding of SD-WAN concepts and the ability to troubleshoot Cisco SD-WAN or Meraki-based solutions.

• Experience configuring and supporting Aruba wireless infrastructure.

• Ability to travel occasionally to nearby sites and respond to after-hours deployment needs when required.

• Familiarity with firewall technologies, Cisco routers, LAN environments, and core network administration practices.

• Exposure to tools and platforms such as Panorama, Active Directory, Azure, or manufacturing-related network systems is a plus. Technology Doesn't Change the World, People Do.®

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All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

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