• Senior Systems Administrator

    Leidos (Aurora, CO)
    **Description** Leidos is seeking a highly skilled ** Senior Systems Administrator ** to support mission-critical operations across various laboratory ... systems to address complex mission-specific challenges. The ** Senior Systems Administrator ** will work...considered in lieu of a degree. + An active TS /SCI with Poly security clearance. + At least 5… more
    Leidos (06/11/25)
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  • Senior Systems Administrator

    Leidos (Aurora, CO)
    …Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Senior Systems Administrator to join a new cyber security program ... and play a key role in supporting government-critical systems . You will be part of a program that...optimization. **What does Leidos need from me?** + Active Top Secret /SCI ( TS /SCI) with Polygraph… more
    Leidos (03/31/25)
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  • Senior Systems Administrator

    TekSynap (Denver, CO)
    **Responsibilities & Qualifications** **RESPONSIBILITIES** The​Sr. Systems Administrator -Directory Services, ICAM, & ZTA ​is expected tobe able to: + Monitors ... disk usage, and response times tomaintainoperating efficiency. + Performs systems security administration functions, including creating user profiles and accounts.… more
    TekSynap (04/19/25)
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  • Senior Systems Engineer

    SAIC (Aurora, CO)
    …SAIC is looking for a senior network engineer / systems administrator with background in configuring, maintaining, and troubleshooting networking ... equipment, servers and processing systems . Must have knowledge of Linux/UNIX operating ...partial degree in progress. + Must have an active TS /SCI security clearance and current Poly. + Database, network… more
    SAIC (05/07/25)
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  • Senior Network Administrator

    Fluor (Aurora, CO)
    …(or ability to obtain) TS /SCI with Polygraph Clearance The Senior Network Administrator has advanced knowledge within designated Information Technology ... development, implementation and integration of IT solutions. The Network Administrator analyzes, evaluates, and recommends innovative solutions. Proficient with… more
    Fluor (04/16/25)
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  • Software Engineer 3/4 (Active TS /SCI & CI…

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and...can be considered in lieu of degree + **Active Top Secret /SCI security clearance required at time… more
    Northrop Grumman (05/13/25)
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  • Software/DevOps Engineer 3/4 (Active TS

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and...can be considered in lieu of degree. + **Active Top Secret /SCI security clearance required at time… more
    Northrop Grumman (05/14/25)
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  • Contracts Administrator - Level 3 or 4

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have ... Administrator - Level 3 (Principal) or Level 4 ( Senior Principal)** , to join our Payload & Ground...Management Association (NCMA) + An active US Government DoD Top Secret security clearance, with Sensitive Compartmented… more
    Northrop Grumman (04/08/25)
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  • Systems Administrator , Junior

    Leidos (Aurora, CO)
    …techniques to improve IT workflows. **What does Leidos need from me?** + Active Top Secret /SCI ( TS /SCI) with Polygraph security clearance required. Must be ... the Leidos National Security Sector is seeking a skilled Systems Administrator , Junior to join a new...cloud computing, and system administration. + Work closely with senior IT staff to ensure the reliability and security… more
    Leidos (03/29/25)
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  • Senior System Administrator

    CACI International (Denver, CO)
    Senior System Administrator Job Category: Information...your work life. More About This Role: As the Systems Administrator on this contract, you will ... Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of… more
    CACI International (06/12/25)
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  • Senior / Principal Windows System…

    SciTec (Boulder, CO)
    …will not be considered. SciTec has an immediate opportunity for a talented Senior Principal Windows System Administrator to join our team in Boulder, ... clear focus on supporting customer needs. Responsibilities + Provide Windows systems administration in multiple heterogeneous Microsoft Windows and Red Hat… more
    SciTec (06/18/25)
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  • Principal System Administrator

    RTX Corporation (Aurora, CO)
    …eligible for a security clearance​ **Security Clearance:** TS /SCI with Polygraph + ** Senior Red Hat Linux Administrator Aurora, CO, 100% on site, must have ... active TS /SCI CI Poly, we offer relocation!** + At Raytheon,...to solve complex digital infrastructure problems.Our **Principal** **L** **inux Administrator ** to achieve the mission of our customer, we… more
    RTX Corporation (06/18/25)
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  • Help Desk Systems Administrator

    TekSynap (Denver, CO)
    **Responsibilities & Qualifications** **RESPONSIBILITIES** The Help DeskSystems Administrator ​is expected tobe able to: + Uses automated information systems to ... code and may prioritize for proper action. + Resolvesproblems orcontactsmore senior technicalsupportas necessary. + Supports users by fulfilling individual requests… more
    TekSynap (05/07/25)
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  • Senior Database Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …Linux command line to perform database administration activities. + Active and transferable Top Secret US government issued security clearance is required prior ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI without Polygraph At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (06/06/25)
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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 (06/13/25)
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  • Senior Network Engineer

    Lockheed Martin (Boulder, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression of ... As we enter a new era of Strategic Weapon Systems , Lockheed Martin is a pioneer, partner, innovator and...\- Maintenance and troubleshooting\. \- Working with the System Administrator , Hardware, and Software teams to maintain/update system\. \-… more
    Lockheed Martin (06/05/25)
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  • Principal Engineer Software

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and...be considered in lieu of a degree. + **Active Top Secret /SCI security clearance required at time… more
    Northrop Grumman (04/30/25)
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  • Sr Principal Engineer Software

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Engineering department which has 200+ Software Engineer, DevOps Engineer, Systems Administrator , Database Administrator , and...in lieu of a degree. + **Current and active Top Secret /SCI security clearance required at time… more
    Northrop Grumman (04/18/25)
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  • Senior Network Engineer

    Lockheed Martin (Boulder, CO)
    …Hardware, and Software teams to maintain/update system\. \- Install/build rack mounted systems \. **Basic Qualifications:** \- Ability to obtain TS /SCI clearance ... new sites\. \- Support the design, build, test, and troubleshoot computer systems \. \- Network and System Administration\. \- Workstation and server configuration\.… more
    Lockheed Martin (04/27/25)
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  • Hybrid Systems Engineer, Sr (Windows…

    Lockheed Martin (Littleton, CO)
    …support to the critical Programs that the Special Programs Division are responsible for\. This Systems Engineer Senior \- IT role is a Hybrid Systems ... compliance, security, and optimal functionality of our vital information systems \. This includes the expert\-level installation, configuration, and maintenance of… more
    Lockheed Martin (05/02/25)
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