• Senior Linux Systems…

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide...Virtualization + **Security Clearance** : Must have an active Top Secret /SCI with Polygraph cssrc conmd If… more
    Leidos (09/18/25)
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  • Sr. Principal Linux System…

    RTX Corporation (Aurora, CO)
    …You will be supporting a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using and developing… more
    RTX Corporation (07/19/25)
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  • Senior System Administrator

    CACI International (Aurora, CO)
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee ... Posting End: 12/16/2025 CACI is seeking **Systems Administrators** with Linux Infrastructure experience to manage and maintain mission-critical operational IT… more
    CACI International (09/03/25)
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  • Cleared IT Systems Administrator

    BAE Systems (Broomfield, CO)
    …available based on position level and/or job specifics. **Cleared IT Systems Administrator Senior ** **115020BR** EEO Career Site Equal Opportunity Employer. ... Systems Space and Mission Systems is seeking an experienced Linux System Administrator that will support the...of Education, US Department of Education. + A current TS /SCI Security and CI polygraph is required. + Ability… more
    BAE Systems (09/09/25)
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  • (DoD SkillBridge) Software Engineer/Principal…

    Northrop Grumman (Aurora, CO)
    …obtain a Counterintelligence Polygraph (CI-Poly) **Offers are contingent upon receiving the Top Secret ( TS ) / SCI clearance** **Preferred Qualifications:** ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have… more
    Northrop Grumman (09/12/25)
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  • Principal OR Sr. Principal Payloads Field Service…

    Northrop Grumman (Keystone, CO)
    …Program Access (SAP/PAR). **Preferred Qualifications for both levels:** + Active DoD Top Secret clearance (with a background investigation within the past ... the Principal Payloads Field Service Engineer level or the Senior Principal Payloads Field Service Engineer level, depending upon...Continuous Evaluation (CE), with the ability to obtain a Top - Secret /SCI clearance within a reasonable amount of… more
    Northrop Grumman (09/17/25)
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  • Senior Cloud Engineer

    KBR (Colorado Springs, CO)
    …Flexible Qualifications: Required: + Security Clearance: Must have an active US government Top Secret security clearance with the ability to obtain SCI SI/TK, ... Title: Senior Cloud Engineer Belong. Connect. Grow. with KBR!...Azure using Terraform + 3+ years of experience with Linux commands, shell navigation, and Git version control +… more
    KBR (09/19/25)
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  • Senior Data Center Engineer

    SciTec (Aurora, CO)
    …will not be considered. SciTec has an immediate opportunity for a talented Senior Datacenter Engineer to join our team in Boulder, CO. Successful applicants will ... vendors for license renewals, hardware/software, and support contracts. + Support system administrator personnel as necessary to resolve end user and systems issues.… more
    SciTec (09/11/25)
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  • DevSecOps / Cloud Engineer

    DCCA (Broomfield, CO)
    …our website at: www.dcca.com DevSecOps / Cloud Engineer Candidates MUST have an active TS /SCI Clearance For over 40 years, DCCA has provided a broad range of IT ... of computing resources. * Ancillary duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance,… more
    DCCA (08/29/25)
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