• Lead Web App Pen Tester

    CoStar Realty Information, Inc. (Arlington, VA)
    Lead Web App Pen Tester Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... / AD Pentesting Expert (CAPE) + INE Security Web Application Penetration Tester eXtreme (eWPTX) + **Those certifications can be substituted with considerable… more
    CoStar Realty Information, Inc. (10/03/25)
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  • Pen Tester

    Insight Global (Washington, DC)
    …Led and executed penetration testing engagements across diverse environments including computer systems, cloud platforms, networks, and web applications. Conducted ... software assurance assessments and vulnerability scans using both automated tools and manual techniques. Identified and exploited security weaknesses, documented technical findings, and provided clear, actionable remediation guidance to reduce risk and enhance… more
    Insight Global (10/24/25)
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  • OSINT and Technical Targeter

    SOS International LLC (Reston, VA)
    …to support social media and OSINT analysis. + Experience as a network pen - tester , use of Cali Linux open-source exploitation tools, Security+ or similar ... IT certifications are also of interest. + Advanced skills (reading, some listening) in prioritized languages, including Chinese and Russian. Evidence of language capability determined by standardaized testing scores (minimum ILR 2+ for reading and listening)… more
    SOS International LLC (09/03/25)
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  • Pen Test Operator

    Guidehouse (Beltsville, MD)
    …HVA Assessment certification with proof of certification as a CISA-AES HVA Pen Test Operator. + Experience supporting US government cybersecurity programs. + CISSP ... certifications: Offensive Security Certified Professional (OSCP) or GIAC Penetration Tester (GPEN) or Certified Ethical Hacker (CEH) Certification. + Experience… more
    Guidehouse (10/20/25)
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  • Penetration Tester

    Leidos (Ashburn, VA)
    …scale and repeatability. Leidos has a critical need for a Junior Penetration Tester to support a large Cyber program within Leidos. The Department of Homeland ... security violations. **Primary Responsibilities:** + Perform internal and external pen test against systems to determine vulnerabilities and offer mitigation… more
    Leidos (09/14/25)
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  • Penetration Tester , Senior

    CACI International (Herndon, VA)
    Penetration Tester , Senior Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular ... * **The Opportunity:** CACI is seeking a talented Penetration Tester to work on a niche project team with...day using your breadth of computer, network, and applications pen -testing experience. As a functional member of a cyber… more
    CACI International (10/18/25)
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  • Penetration Tester - Part Time & Remote

    TestPros (Sterling, VA)
    …Corp. to Corp) Job Summary TestPros is looking for an experienced Penetration Tester professional to support our IT Security consulting work for various Commercial ... external networks, web applications, and application/code review + Understanding of Pen Test methods such as Open Source Security Testing Methodology Manual… more
    TestPros (08/19/25)
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  • Fips 140 Security Engineer

    System One (Columbia, MD)
    …in your resume/cover letter) will be automatically rejected. No exceptions-general security, pen testing, or app sec experience does not substitute. Join Us! ... for Consideration): + Active CVP Certification: Proven track record as a CVP-certified tester in a NIST NVLAP-accredited lab (include cert #, lab affiliation, and 2+… more
    System One (10/10/25)
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  • T1 AS&W Analyst - Day Front

    Leidos (Ashburn, VA)
    …media forensic, monitoring and detection, incident response, vulnerability assessment and pen test; OR cyber intelligence analysis + Extensive experience analyzing ... + GCFA - Forensic Analyst + GPEN - Penetration + GWAPT - Web Application Penetration Tester + GCFE - Forensic Examiner + CEH - Certified Ethical Hacker + CHFI -… more
    Leidos (09/06/25)
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