Network Adminstrator

Leidos•Fort Meade, MD

7d•Onsite

About The Position

Leidos is hiring a Network Administrator to support a Department of War customer onsite in Fort Meade, Maryland. The role joins an experienced network operations team maintaining secure, reliable, and highly available infrastructure for critical customer systems. The administrator will support enterprise network operations and troubleshoot connectivity, switching, routing, firewall, and VPN issues, handling routine operational responsibilities independently while developing deeper network engineering and security skills. The position requires U.S. citizenship and the ability to obtain and maintain the required DoW Secret clearance. The employee will work with a hybrid, multi-location operations team, collaborate with other infrastructure and technical teams, participate in scheduled maintenance, and provide after-hours or on-call support as required.

Requirements

Bachelor's degree and 4 or more years of relevant network administration or network operations experience; additional relevant experience may be considered in lieu of a degree.
Hands-on experience administering and troubleshooting enterprise Cisco routing and switching environments.
Working knowledge of TCP/IP, VLANs, subnetting, routing, switching, DNS, DHCP, NAT, ACLs, and VPN technologies.
Experience troubleshooting network connectivity and performance using standard network diagnostic tools.
Working knowledge of enterprise firewall technologies.
Hands-on Palo Alto PAN-OS and Panorama experience.
Experience with GlobalProtect remote access and VPN.
Understanding of ITIL-based incident, request, problem, and change-management processes.
Ability to document technical procedures, network changes, troubleshooting activities, and incident resolution.
Ability to communicate effectively with technical teams, management, and customers.
Ability to work independently on routine operational issues and recognize when escalation to senior engineering staff is needed.
Must be a U.S. citizen and able to obtain and maintain the required DoW Secret clearance.
Must possess or be able to obtain the required DoD 8140/IAT Level II baseline certification within 90 days.

Nice To Haves

Bachelor's degree in information technology, Computer Science, Network Engineering, or a related technical field.
Cisco CCNA certification and/or Palo Alto Networks Next-Generation Firewall Engineer certification.
CompTIA Security+ CE certification.
Experience supporting Palo Alto Next-Generation Firewalls and Panorama.
Experience with Palo Alto security policies, zones, NAT, routing, and threat-prevention profiles.
Experience with enterprise Cisco Catalyst and/or Nexus switching platforms.
Experience supporting network infrastructure in DoD or other federal government environments.
Familiarity with network monitoring and management platforms.
Familiarity with network automation or scripting technologies such as PowerShell, Python, or Ansible.
Experience supporting infrastructure within formal change and configuration management processes.
Active DoD Secret clearance.

Responsibilities

Administer, maintain, and troubleshoot enterprise network infrastructure in a secure production environment.
Support Cisco routing and switching, including VLANs, trunking, routing protocols, access controls, and network connectivity.
Perform network-device configuration changes, software updates, and routine maintenance under established change-management procedures.
Support Palo Alto firewalls and Panorama, including policy updates, rule reviews, troubleshooting, and log analysis.
Monitor network devices, firewall logs, alerts, availability, capacity, and performance to identify and resolve potential issues.
Support and troubleshoot site-to-site and remote-access VPN connectivity.
Troubleshoot incidents involving connectivity, routing, switching, DNS, DHCP, firewall rules, access, and network performance.
Perform initial network-incident analysis and escalate complex engineering issues when appropriate.
Participate in incident and problem management, including identifying root causes and documenting corrective actions.
Coordinate with server, virtualization, cybersecurity, application, and other infrastructure teams on issues spanning multiple technologies.
Manage incidents, service requests, change requests, and problem tickets through their full lifecycle.
Perform network health checks and review performance data for trends or potential issues.
Maintain network diagrams, device inventories, configuration documentation, troubleshooting procedures, and knowledge articles.
Provide status updates on incidents, maintenance activities, and ongoing technical issues.
Assist senior network engineers with upgrades, migrations, refresh activities, and implementation of new technologies.
Identify opportunities to improve operational processes, monitoring, automation, and network reliability.
Participate in scheduled maintenance and provide after-hours or on-call support as required.