• Test Engineer (Senior)

    Cintel Inc (Huntsville, AL)
    …and report on system test cases, providing progress updates. + Serve as a subject matter expert in testing practices for highly complex software/hardware ... Full-Time Position Overview Cintel is seeking an experienced Test Engineer to join our team supporting mission-critical systems...technical reporting and briefings. + Must hold an active Top Secret clearance . CULTURE REQUIREMENTS: +… more
    Cintel Inc (12/16/25)
    - Related Jobs
  • Software Engineer Senior - Level 3

    Lockheed Martin (Palmdale, CA)
    …to learn from some of our most talented and senior engineers to grow into a subject matter expert to support both our current platforms and our platforms ... and avionics and your experience as an embedded software engineer and use it to help develop software for...must be a US Citizen for consideration\. **Clearance Level:** Top Secret with Investigation or CV date… more
    Lockheed Martin (09/26/25)
    - Related Jobs
  • Lead Information Security Engineer

    Lumen (Herndon, VA)
    …escalation support for Junior Engineer SOC personnel. **The Main Responsibilities** + Subject Matter Expert on DDoS attacks, mitigation and threat ... Mitigation for Lumen Federal Customers. This position will provide subject matter expertise to DoD customers on...Candidate must be a US Citizen with an active TOP SECRET clearance Preferred: + 5-7 years… more
    Lumen (12/10/25)
    - Related Jobs
  • Electrical Engineer III

    Service Source (St. Louis, MO)
    …humanity. Job Summary The Facility Electrical Engineer III Project Manager will be subject matter expert for all aspects of electrical engineering at the ... PE or EIT certification preferred. + Ability to obtain and maintain a Top Secret /SCI government security clearance with polygraph is required. Knowledge, Skills,… more
    Service Source (10/27/25)
    - Related Jobs
  • Senior Cybersecurity Engineer

    ManTech (Washington, DC)
    …authorization + Provide cybersecurity Risk Management Framework (RMF) support + Serve as a subject matter expert in the validation of the implementation of ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Cybersecurity Engineer ** to join our team working in the **Washington,...a US Citizen and possess an active or current Top Secret clearance. **Physical Requirements:** + Must… more
    ManTech (10/30/25)
    - Related Jobs
  • Lowband Software Support Engineer (Onsite)

    RTX Corporation (Langley AFB, VA)
    …diagnostics and fault isolation for the SIGINT sensors associated with End-to-End Sensor paths + Subject Matter Expert ( SME ) that provides SIGINT and ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI - Current Raytheon Company Managed by Collins Aerospace...Collins Aerospace is seeking an onsite Sensor Resource Manager Expert to join our team at Langley AFB, VA… more
    RTX Corporation (12/11/25)
    - Related Jobs
  • Senior Software Engineer -Technical Lead

    KBR (Beavercreek, OH)
    …future of space defense. Position Summary: KBR is looking for a Technical Team Leader/ Subject Matter Expert to support the horizontal integration of multiple ... Title: Senior Software Engineer -Technical Lead Belong. Connect. Grow. with KBR! KBR's...either open source or professional team environments. + Active Secret Clearance; Top Secret eligible… more
    KBR (12/09/25)
    - Related Jobs
  • Scientist, Software Engineer / Cloud…

    L3Harris (Melbourne, FL)
    …with security teams to help define and implement security controls. + Serve as a Subject Matter Expert on Cloud, Microservices, IaC, and DevSecOps topics to ... the interest of national security. Job Title: Scientist, Software Engineer / Cloud Architect Job Code: 30484 Job Location:...to obtain and maintain an FAA public trust or Top Secret clearance which requires US Citizenship.… more
    L3Harris (11/06/25)
    - Related Jobs
  • Boundary Protection Engineer

    Leidos (Las Cruces, NM)
    …policy exceptions in response to ongoing technology implementation activities on the program + Proxy Subject Matter Expert ( SME ) for integration of other ... to an enterprise level infrastructure across multiple classifications and act as subject matter experts in boundary technologies across multiple vendors. The… more
    Leidos (12/03/25)
    - Related Jobs
  • Senior Structural Engineer

    Parsons Corporation (Fort Belvoir, VA)
    …for buildings and facilities. + Must have a Valid Passport + Must have an Active Top Secret Clearance with SCI Eligibility + Must be able to travel up to ... Parsons is looking for an amazingly talented **Senior** **Structural Engineer ** to join our team! In this role you...to the Home Team. **Security Clearance Requirement:** An active Top Secret SCI security clearance is required… more
    Parsons Corporation (10/31/25)
    - Related Jobs