Night Network Administrator – 3rd Shift | TS/SCI

Tetrad Digital Integrity LLC; Virginia (MN); On-site; USD 95,000 - 125,000; Full time

Job summary

Tetrad Digital Integrity LLC in Arlington, VA is seeking a Network Administrator for the 3rd shift (10 PM–6 AM) to join the CESO program. The role supports a modern, highly automated secure web service operation for a growing customer base.

The ideal candidate holds an active TS/SCI clearance, DoD 8750 IAT II, a Bachelor’s degree with 4+ years of related experience, and hands-on expertise with switches, routers, VLANs, 802.1X, and IPsec VPNs. Ability to work nights/weekends/holidays is required.

Qualifications

• Active TS/SCI clearance required.
• DoD 8750 IAT II certification or equivalent (e.g., Security+ CE).
• Bachelor’s degree with 4+ years related experience.
• Hands-on experience configuring and managing network infrastructure (switches, routers, VLANs, 802.1X).
• Ability to monitor, troubleshoot, and secure network performance, security, availability.

Responsibilities

• Network monitoring of connections and performance to ensure network availability for user access and services.
• Proactively identify risks and issues in the network and complete actions to mitigate them.
• Plan, coordinate and implement network maintenance, installation, and security to protect and improve network infrastructure.
• Receive and review user requests to establish or resolve issues with user access to services.
• Troubleshoot and resolve network issues and escalate complex problems to senior engineers or vendors.
• Configure, install, and maintain network devices and software.

Skills

Active TS/SCI clearance

DoD 8750 IAT II (e.g., Security+ CE)

Bachelor’s degree + 4+ years related

Network configuration and management

Routing protocols: BGP/OSPF

IPsec VPN troubleshooting

24x7 shift readiness

Education

Bachelor’s degree or equivalent experience + 4+ years

Tools

Palo Alto devices

S2S IPsec VPN

BGP

OSPF

Job description

Tetrad Digital Integrity LLC in Arlington, VA is seeking a Network Administrator for the 3rd shift (10 PM–6 AM) to join the CESO program. The role supports a modern, highly automated secure web service operation for a growing customer base.

The ideal candidate holds an active TS/SCI clearance, DoD 8750 IAT II, a Bachelor’s degree with 4+ years of related experience, and hands-on expertise with switches, routers, VLANs, 802.1X, and IPsec VPNs. Ability to work nights/weekends/holidays is required.