Network Administrator (Top Secret Clearance Required)

TEKsystems • Marietta, GA

1d • $45 - $65 • Onsite

About The Position

We are seeking a TS/SCI‑cleared Network Administrator to support secure enterprise and tactical networks in a classified environment. This role requires hands‑on experience with Cisco networking, Palo Alto firewalls, Type 1 encryption devices, and DoD security compliance frameworks. The ideal candidate is a strong troubleshooter with experience operating within RMF‑accredited systems and supporting secure communications technologies.

Requirements

• Must have an active TS/SCI security clearance (required; no exceptions)
• 3–5 years of hands‑on Network Administration experience, primarily with Cisco technologies for routing and switching
• Experience administering Palo Alto firewalls in production environments
• Strong overall network troubleshooting skills in enterprise or DoD environments

Nice To Haves

• Experience with Juniper firewalls in addition to Palo Alto
• Hands‑on experience supporting secure VoIP, VTC, and H.323‑based systems, including Gatekeepers or Call Manager
• Prior experience supporting Army, Air Force, or DoD classified networks
• Familiarity with WAN, perimeter, and enclave‑based network architectures
• Experience with point‑to‑point encryption, with TACLANE (preferred) or other Type 1 encryptors

Responsibilities

• Administer, maintain, and troubleshoot classified network infrastructure using Cisco routing and switching technologies
• Configure, manage, and troubleshoot Palo Alto firewalls in a secure environment
• Support point‑to-point encrypted links using TACLANE or other Type 1 encryption devices
• Perform end‑to-end network troubleshooting across Layer 2–7, including encrypted circuits
• Implement and maintain RMF controls to support system authorization and compliance
• Apply and manage DISA STIGs for network devices and security infrastructure
• Support secure communications systems, including VoIP, VTC, and H.323‑based technologies
• Collaborate with operations, security, and engineering teams to maintain network availability and security
• Document configurations, procedures, and compliance artifacts as required for classified systems

Benefits

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

What This Job Offers

• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 501-1,000 employees