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Email Services Systems Administrator - TS/SCI with Polygraph

General Dynamics Information Technology

Annapolis Junction, Maryland, United States Full time July 08, 2026
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Vacancy Description

ENDPOINT MANAGEMENT SYSTEMS ADMINISTRATOR

YOUR IMPACT

Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise—directly, contributing to a mission that protects our nation every day.

CIO Infrastructure Services (CIS) is growing, and we invite both our experienced incumbents and new team members to be part of what’s next. Incumbents bring invaluable mission insight, while new talent adds fresh ideas and energy. Together, we’ll strengthen continuity and drive the next generation of innovation.

MEANINGFUL WORK AND PERSONAL IMPACT

As an Email Services Systems Administrator supporting CIS, you will operate, secure, and optimize enterprise email and messaging services across complex multinetwork environments. You will maintain high availability email platforms, ensure reliable communication services, and sustain cloud enabled collaboration capabilities...

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