Senior System Administrator - FS Poly with Security Clearance

Who We Are Stanley Reid is a specialized recruiting firm connecting top contractors with exciting IC/DoD opportunities. We're dedicated to a personalized, stress-free job search, matching your unique skills and goals with the perfect role. About Our Client Since 2006, our client's agile, tech-savvy teams have tackled complex missions for the IC/DoD, crafting elegant solutions that leave a lasting mark. Forget the corporate grind and embrace a collaborative, small-company culture where creativity thrives. They value your unique spark, empowering you to make a real difference alongside like-minded experts passionate about bleeding-edge technologies and safeguarding our nation. You'll receive a competitive salary, comprehensive family healthcare, generous PTO, and a rewarding 10% 401k match. The true reward, however, is the impact you'll make, wielding cutting-edge tech to solve real-world challenges. The Role Our client is seeking an experienced System Administrator to manage, troubleshoot, and maintain complex Information Technology (IT) systems across the enterprise infrastructure. You will be responsible for the day-to-day operation, monitoring, and problem resolution for client/server/storage/network devices and mobile systems. This role includes providing both Tier 1 (Help Desk) and Tier 2 (Escalation) support, configuring and managing UNIX and Windows operating systems, and supporting the installation and maintenance of Cisco routers and switches to ensure optimal system integrity and performance. Compensation for highly qualified candidates can reach 220k, with a robust benefits package.  What You'll Bring Fifteen (15) years of experience as a System Administrator (SA) in programs of similar scope and complexity. A Bachelor’s degree in a technical discipline (or five [5] years of additional SA experience in lieu of a degree). Strong experience in configuring and managing UNIX and Windows operating systems. Expertise in installing and maintaining Cisco routers and switches. Experience with AWS and Linux environments (Preferred). Ability to analyze and resolve complex problems associated with server hardware, applications, and software integration. Clearance Requirements TS/SCI with FS Polygraph is required. We are not able to upgrade clearances or accept CCAs. Please note, you must have the required clearance for consideration; under-cleared applicants will not receive a response. Location Aurora, CO   Ready for Next Steps? We encourage you to apply and connect with us even if a direct match isn't currently listed. Apply online at https://careers.stanleyreid.com/ or contact our MD team for more info: , . Please Note Due to high application volume, we are unable to confirm receipt of submissions or provide updates. We will contact you directly if there is a match. Opportunities change frequently; We cannot guarantee availability. Posted on (10/09/2025)