• Sr Principal Systems Engineer

    RTX Corporation (Richardson, TX)
    …provide the training and tools to help grow the skills you will need to become a subject matter expert ( SME ) in the systems engineering lifecycle. You ... only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret **Are you looking to make a meaningful, positive impact… more
    RTX Corporation (11/01/25)
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  • System Administrator

    Parsons Corporation (Colorado Springs, CO)
    …Information (SCI) and Special Access Program (SAP) activities. **"What You'll Be Doing"** + Provides Subject Matter Expert ( SME ) support to Tier 1 ... create game changing space solutions by teaming highly respected subject matter experts with brilliant technologists. Do...accredited university with minimum 8 years of experience + Top Secret ( TS ) security clearance… more
    Parsons Corporation (11/14/25)
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  • Lead Systems Engineer

    ManTech (Chantilly, VA)
    …+ Leadership & Mentoring: Lead technical projects, mentor junior engineers, and act as a subject matter expert ( SME ). + Providing server/operating system ... is seeking a motivated, career and customer-oriented Lead Systems Engineer to join our team in Chantilly, VA. This...technical projects, mentor junior engineers, and act as a subject matter expert ( SME more
    ManTech (12/17/25)
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  • Virtual Network Engineer

    CACI International (Austin, TX)
    …system administrators. As the onsite Subject Matter Expert ( SME ) and lead Virtual Network Engineer for NAVAIR's Minotaur data distribution and ... Virtual Network Engineer Job Category: Information Technology Time Type: Full...Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel… more
    CACI International (12/17/25)
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  • UC Engineer - Principal

    Amentum (Fort Meade, MD)
    …Address challenges related to data flow, security policies, and interoperability **Requirements:** * Subject Matter Expert in UC design, Edge services, ... up to 20% **Clearance Required:** * Must have active Top Secret clearance with SCI eligibility **Minimum...Cisco Certified Network Professional (CCNP) - Collaboration certification * Subject Matter Expert of Cisco… more
    Amentum (12/09/25)
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  • Systems Engineer

    ManTech (Washington, DC)
    …to drive workload automation and continuous process improvement across the enterprise. + Provide Subject Matter Expert ( SME ) guidance to customers, ... and/or other scripting languages **Clearance Requirements:** + Must have a current/active DOD Top Secret security clearance, adjudicated within the last 6 years… more
    ManTech (12/28/25)
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  • Consulting Systems Engineer - Ship…

    Northrop Grumman (Baltimore, MD)
    …the best work of your career. The Surface Ship Construction & Sensor Installation Subject Matter Expert provides technical leadership and expertise across ... global security environments, Northrop Grumman brings informed insights and software -secure technology to enable strategic planning. We're looking for...related technical fields. + A current / active DoD Top Secret Clearance or higher + Prior… more
    Northrop Grumman (12/19/25)
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  • Systems Engineer Staff (Level 4)

    Lockheed Martin (Littleton, CO)
    …happen in order to mitigate them and maintain schedule * Current or Active Top Secret clearance, thus US Citizenship is required\. * **A successful candidate ... Space is looking for an innovative and experienced Systems Engineer to support the team that designs, develops, fields...our Littleton, CO campus\. **Basic Qualifications:** * Current/Active DoD Top Secret Security Clearance * Familiarity with… more
    Lockheed Martin (12/06/25)
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  • Network Implementation Engineer

    SAIC (Panama City Beach, FL)
    …to all Layer 2 and Layer 3 network services, including switches, routers, and firewalls. + Subject Matter Expert ( SME ) level knowledge in the deployment ... **Description** SAIC is seeking a Network Implementation Engineer to join our team supporting the JEXC2...IAT Level II certification. + US Citizen. + Full Top - Secret clearance preferred; Full Secret more
    SAIC (10/28/25)
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  • DCGS Field Engineer

    CACI International (Hampton, VA)
    …diagnostics and fault isolation for the SIGINT sensors and associated End-to-End Sensor paths. + Subject Matter Expert ( SME ) that provides SIGINT and ... DCGS Field Engineer Job Category: Information Technology Time Type: Full...Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: None… more
    CACI International (11/08/25)
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