• Senior Software Engineer

    ManTech (Alexandria, VA)
    …a team-oriented environment. **Clearance Requirements:** + Must possess a current and active TS / SCI **Physical Requirements:** + The person in this position must ... MANTECH seeks a motivated, career and customer-oriented **Senior** **Software Engineer ** to join our team in **Alexandria, VA** . As part of the position, you will… more
    ManTech (01/01/26)
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  • Platform/Infrastructure Engineer

    Nightwing (Sterling, VA)
    …the intelligence community, defense, civil, and commercial markets. Job Title: Platform/Infrastructure Engineer Location: Sterling, VA Clearance: TS / SCI Poly ... **This position is CONTINGENT upon contract award** The Platform/Infrastructure Engineer (PIE) designs, builds, and maintains the platforms that Mission Partner… more
    Nightwing (12/26/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …as Nmap, Nessus, and tcpdump. **Clearance Requirements:** + Must have a current/active TS / SCI with CI Polygraph. **Physical Requirements:** + The person in this ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports a… more
    ManTech (12/13/25)
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  • Applied AI Interface Engineer

    ManTech (Alexandria, VA)
    …and transformation. **Clearance Requirements:** + Must possess a current and active TS / SCI clearance **Physical Requirements:** + The person in this position ... MANTECH seeks a motivated, career and customer-oriented **Applied AI Interface Engineer ** to join our team in **Alexandria, VA** . As part of the position, you will… more
    ManTech (12/12/25)
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  • Network Engineer

    Jacobs (Chantilly, VA)
    …to learn and work on Multiprotocol Label Switching (MPLS) Wide Area Networks (WANs). Requirements TS SCI CI Poly The candidate must have 16 years of experience ... Knackworks, a Jacobs Company, has an opening for a Network Engineer (Campus Area Network/Local Area Network (CAN/LAN)) to support our government customer's global… more
    Jacobs (12/12/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …(eg, STIGs, CIS Benchmarks) **Clearance Requirements:** + Must have a current/active TS / SCI with Polygraph **Physical Requirements:** + The person in this ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA** . Senior Cyber Security… more
    ManTech (12/11/25)
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  • Architecture Network Engineer

    Leidos (Chantilly, VA)
    …Wide Area Networks (WANs). **Basic Requirements** + Required Clearance to be considered: TS / SCI with Polygraph + Candidate must have 10 years of experience ... Modernization Sector at Leidos** **has an opening for a** **Network** ** Engineer (Campus Area Network/Local Area Network (CAN/LAN))** to support global enterprise… more
    Leidos (12/09/25)
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  • Principal Network Engineer

    Leidos (Mclean, VA)
    …years of prior relevant experience. + Must have active and current TS / SCI with Polygraph. **Preferred Qualifications:** + Experience developing DevOps ... **Leidos** has a new and exciting opportunity for a **Principal Network Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area… more
    Leidos (01/09/26)
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  • Senior Splunk Cyber Security Engineer

    ManTech (Chantilly, VA)
    …security use cases within Splunk **Clearance Requirements:** + Must have a current/active TS / SCI with CI Polygraph **Physical Requirements:** + Must be able to ... **MANTECH** seeks a motivated, career, and customer-oriented **Senior Splunk Cyber Security Engineer ** to join our team in **Chantilly, VA.** In this role, you will… more
    ManTech (12/30/25)
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  • Systems Engineer 4

    M. C. Dean (Vienna, VA)
    …and must meet eligibility requirements, including US Citizenship, for access to classified information ; **active** **DoD TS / SCI w/ polygraph clearance is ... in electrical, engineering, and cybersecurity industries. We are seeking a **System Engineer 4** to join our **Security and Electronic Systems (SES)** business Unit.… more
    M. C. Dean (12/30/25)
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