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Windows/Linux System Administrator

📍 Location
Annapolis Junction, Maryland
⏰ Job Type
Full-time
📅 Posted
May 16, 2026

About the Role

A Global Defense Contractor is seeking a Windows / Linux System Administrator to manage and support internal-use telephony systems for our Homeland Security customer. This role provides technical leadership for the configuration, maintenance, and troubleshooting of enterprise telephony infrastructure, with responsibilities spanning operating systems, networking, security, and application support.

Responsibilities:

Manage and support enterprise telephony systems across these programs, including hardware, software, peripherals, and call applications such as WFO/WFM, CMS, and call recording platforms.

Install, configure, operate, monitor, and maintain enterprise infrastructure, including web servers (e.g., IIS), application servers, and telecom hardware (e.g., Dell PowerEdge servers, Anaya J Series phones).

Install, configure, troubleshoot, and resolve issues related to telephony systems, Windows / Linux servers, network connectivity, and syst...

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