Senior Linux Systems Admin - TS/SCI/Poly | Onsite Aurora
Cornerstone Defense
Cornerstone Defense is seeking a Senior Linux Systems Administrator in Aurora, CO, with active TS/SCI clearance. This role is responsible for maintaining and securing IT systems in a classified environment while supporting customer mission-critical capabilities. The ideal candidate will have extensive experience in Linux administration, automation tools, and scripting. Cornerstone Defense offers a full suite of benefits, including medical insurance, retirement plans, and tuition assistance. #J-18808-Ljbffr Cornerstone Defense
- Avenue Technologies Company in Aurora, CO is seeking a Senior RF Hardware Engineer to... ...involves supporting advanced test systems for hardware validation... ...have a STEM degree, active TS/SCI clearance, and experience... ...systems. The position is onsite and requires U.S. Citizenship...Senior
$155k - $175k
Envision Innovative Solutions is hiring a Systems Administrator Level 2 in Aurora, CO. In this role, you will provide essential support for the implementation... ...'s degree. The position requires a current Active TS/SCI clearance. The projected salary range is $155,000.00-$1...Senior$150k - $175k
...Position : Senior Linux Systems Administrator Location: Aurora, CO Clearance: Active TS/SCI with FSP Polygraph Sign-On Bonus: Yes DeNOVO Solutions, LLC is seeking a highly skilled Senior Linux System Administrator to support an advanced project that...SeniorFull timeRelocation package$89.3k - $157.55k
...a Level 3 Satellite Operations Controller in Aurora, CO. The role involves conducting real-time satellite... ...must have a relevant degree and active TS/SCI w/ Poly clearance. Additional skills in programming languages such as LINUX, JAVA, and Python are desired. This position...Senior$120k - $192k
DCCA is seeking a System Administrator II based in Aurora, Colorado. This role involves supporting the implementation... ...Candidates must have an active TS/SCI clearance with Poly. The ideal candidate will have 1... ...and proficiency in UNIX/Linux administration. The position...Senior- Cornerstone Defense, based in Aurora, CO, is looking for a dedicated Systems Administrator to join... ...and a current TS/SCI CI Poly security clearance. Responsibilities... ...-time position is 100% onsite, supporting critical... ...dynamic environment and have Linux and virtual systems...Full time
$65 - $85 per hour
GeoLogics is seeking a Principal Systems Engineer (MBSE) in Aurora, CO, to provide enterprise-wide systems engineering support. The ideal candidate... ...will have experience in Model-Based Systems Engineering, a TS/SCI clearance, and strong skills in programming (Python)....Contract work- Envision Innovative Solutions is seeking a motivated Systems Administrator Level 3 for their Aurora, Colorado location. The role includes supporting implementation... ...degree in a technical field, and must hold an active TS/SCI clearance with Full Scope Polygraph. Join a...Senior
$130k - $170k
SciTec Incorporated in Aurora, Colorado, is seeking a Sr Staff/Senior Software Engineer to support Missile Defense... ...role involves customer-facing onsite support, system optimization, and... ...engineering, along with an active TS/SCI security clearance. Competitive...Senior- ...large federal client in the Aurora, CO area to identify a Systems Maintainer to join their team... ...role. This role will be fully onsite 5 days a week and requires a TS/SCI CI Poly clearance. This will be a 9... ...with degree to match LCAT) Linux Command Line experience Knowledge...Contract work
$177k - $265.6k
Northrop Grumman in Aurora, Colorado is seeking a Staff Systems Administrator to work on revolutionary systems impacting... ...system administration across Linux and Windows platforms, managing VMware... ...IT experience and active Top Secret/SCI clearance. Compensation includes a salary...Senior$85.5k - $150.77k
...that the Lockheed Martin IT systems are managed, controlled,... ...based domains, and Linux distributions Manage operating... ...procedures Full‑time onsite role, working most of the... ...Basic Qualifications Active TS/SCI clearance with ability to obtain CI Poly U.S. Citizenship...SeniorFull timeTemporary workRelocationFlexible hoursShift work$158k - $190k
...high-tech solutions company is seeking a Senior Systems Administrator to ensure the smooth... ...systems. Candidates must have an active TS/SCI + CI Poly clearance, along with a CompTIA... ...settings. The position is located in Aurora, CO, with occasional travel and offers...Senior$95 - $118 per hour
GeoLogics is looking for a Principal RF Systems/Hardware Engineer in Aurora, Colorado. The role requires an active TS/SCI clearance and offers a rate of $95-$118 per hour based on experience. Candidates must have at least 8 years of RF systems engineering experience, particularly...SeniorHourly pay- Job Details Principal RF Systems/Hardware Engineer with ACTIVE TS/SCI with CI POLY. Location: Buckley, AFB, CO 80011. Duration: 12+ contract. Rate Range: $95/hr... ...Experience upgrading hardware supported by Windows and Linux systems. Experience with Linux-based systems....Contract work
$115k - $175k
Senior Infrastructure/DevSecOps Engineer (TS/SCI with CI Poly) {S} Job Category: ENG Requisition Number: SENIO003006 Posted: August 8, 2025 Job Type: Full-Time Workplace: On-site Location Stratagem Group Aurora 3855 Lewiston St Suite 250 Aurora, CO 80011, USA ARKA...SeniorFull timeTemporary workWork experience placementWork at officeRemote workVisa sponsorshipRelocation packageFlexible hours- Title: Principal RF Systems/Hardware Engineer with ACTIVE TS/SCI with CI POLY Rate Range: $95/hr - 118/hr W2 (depends on experience and benefits chosen) Location... ...upgrading hardware supported by Windows and Linux based systems. Previous experience working with systems...Contract workRelocation
$49.25 - $118.3 per hour
Wyetech, LLC is looking for a qualified System Administrator with at least 15 years of experience and a TS/SCI clearance to work in Aurora, Colorado. This role involves managing IT systems, providing support, and troubleshooting. The candidate will also ensure optimal...SeniorHourly pay$85.5k - $150.77k
...Space division in Littleton, Colorado. The role involves managing Linux and Windows servers, ensuring cyber compliance, and providing... ...Candidates must possess a Security+ certification and an active TS/SCI clearance. This full-time position follows a 9x80 schedule, offers...SeniorFull time- Wyetech, LLC is seeking a Systems Administrator to provide IT support and system administration... ...for federal government customers in Aurora, Colorado. Responsibilities include managing... ...in a technical discipline and possess a TS/SCI security clearance. The role offers...SeniorHourly pay
$90 - $110 per hour
A defense contractor in Aurora, CO, is seeking an experienced Software Architect with a strong... ...C++, cloud environments, and an active TS/SCI clearance. This position offers a full-... ...$90 to $110 per hour, depending on experience. #J-18808-Ljbffr Associates Systems LLCSeniorHourly payFull timeFor contractors- ...client is seeking an experienced System Administrator to manage,... ...switches. Experience with AWS and Linux environments (Preferred).... ...integration. Clearance Requirements TS/SCI with FS Polygraph is required.... ...receive a response. Location Aurora, CO Ready for Next Steps? We...SeniorFor contractors
$190k - $280k
...notable technology solutions provider in Aurora, CO, is looking for a Principal Software... ...will develop and enhance complex software systems while ensuring adherence to design requirements... ...candidates must possess an active TS/SCI with Polygraph clearance and have over 20...Remote job$86k - $200k
...position that can be located at either our Aurora, CO or King of Prussia, PA location. In... .../or algorithm development ~ Active TS/SCI with CI Poly U.S. Government Security Clearance... ...Face and LangChain Experience with Linux Familiarity with using AWS cloud computing...Temporary workWork at officeRemote workVisa sponsorshipRelocation packageFlexible hours- Leidos LLC in Aurora, Colorado is seeking a qualified individual for a position that requires active TS/SCI clearance. The successful candidate will be responsible for troubleshooting hardware and system issues, communicating with customers, and coordinating maintenance...
- Riverstone Enterprise Solutions is looking for a motivated Systems Administrator Level 2 in Aurora, CO, for a hybrid position. Responsibilities include... ...or equivalent experience is needed. An active TS/SCI with Full Scope Polygraph clearance is required. #J-188...Senior
- A leading recruiting firm is seeking an experienced System Administrator in Aurora, CO. The ideal candidate will manage complex IT systems, providing... ...familiarity with UNIX and Windows operating systems. A TS/SCI clearance is required. This position offers an excellent compensation...Senior
$115k - $160k
NASK Incorporated in Aurora, Colorado is looking for candidates to analyze complex communications signals for national security. This role... ...in intelligence operations, with a strong proficiency in Linux environments and Python scripting. Your responsibilities will include...Senior$69.72 - $79.33 per hour
EverWatch, located in Aurora, Colorado, is seeking an experienced System Administrator to support mission-critical enterprise IT systems. The ideal candidate... ...federal clients. Successful applicants will require TS/SCI clearance with a polygraph. Compensation ranges from...SeniorHourly pay$175k - $200k
An information technology services company is seeking a qualified Systems Administrator in Aurora, Colorado. Candidates must be US citizens with an active TS/SCI security clearance and a bachelor’s degree. Responsibilities include managing IT system infrastructure, troubleshooting...Senior
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