Network Administrator, 3rd Shift
Job in
Arlington, Arlington County, Virginia, 22201, USA
Listed on 2026-09-02
Listing for:
TDI (Tetrad Digital Integrity)
Full Time
position Listed on 2026-09-02
Job specializations:
-
IT/Tech
Cybersecurity, Systems Administrator, Network Security, Network Engineer
Job Description & How to Apply Below
Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age.
TDI is currently seeking a Network Administrator, 3rd shift (10PM to 6AM) to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population .
This position is onsite 5 days/week in Arlington, VAand requires an active TS/SCI clearance.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
- Able to 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 escape complex problems to senior engineers or vendors
- Configure, install, and maintain network devices and software
- An active TS/SCI security clearance is required for this position
- Currently possess DoD 8750 certification at least IAT level II, e.g Security+ce
- Bachelor's degree and 4+ years of overall related experience.
Additional experience may be considered in lieu of degree - Hands-on knowledge of configuring and managing network infrastructure, including switches, routers, VLANs, and 802.1X network access controls
- Proficiency with dynamic routing protocols, including BGP and OSPF, as well as troubleshooting Site-to-Site (S2S) IPsec VPN tunnels
- Ability to monitor and troubleshoot network performance, security, availability, and connectivity
- Comfortable working 24×7 shifts, including nights, weekends, and holidays
- Prior experience with DISA and DISA’s support to mission partners
- AWS Cloud service experience
- Experience with Palo Alto devices
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