Hiring: Tier 3 System Administrator – TS/SCI with Polygraph Company: General Dynamics Information Technology Location: Aurora, CO Job Posted Time: 2026-09-10 11:13:14 Employment Type: Contract / Remote Target Skills & Keywords : AI, Aurora, DNS, Java, Linux, Microsoft Excel, PowerShell, RHEL, ServiceNow, User Experience About the job Experience: •5 + years of related experience •Primary responsibilities include providing Tier II support of maintaining multiple large Enterprise environment. The supporting infrastructure includes multiple Microsoft based networks spanning multiple security enclaves within a hybrid (Windows & RHEL) environment. Required Skills: •Linux, Microsoft Windows, System Administration •System Administrative Advisory duties to include management of Windows and Linux workstations on EVDI and physical •Troubleshooting application functionality, crash and performance •Investigate user performance and work with external teams to improve user experience. •Assist customers with Tier 2 incident resolution for Linux and windows applications. •Provide remote end user desktop support. Compensation: •$110,500 - $149,500 / year •Flexible work environment (work from home / hybrid options) •Competitive benefits and rewards package •Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!