• Lead Information Security Engineer-Federal…

    Lumen (Washington, DC)
    …(ISSO) for government system + Achieve and maintain ATO ( Authority to Operate ), as required. + Write System Security Plans (SSP), Plan of Actions & ... and shape the future. **The Role** The Lead Information Security Engineer is a member of the Industrial ...Security Engineer is a member of the Industrial Security team supporting Lumen Government Services and is responsible… more
    Lumen (10/01/25)
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  • Information System Security Officer (ISSO)

    St. George Tanaq Corporation (Washington, DC)
    …a critical role in supporting the Risk Management Framework (RMF) lifecycle, maintaining Authority to Operate ( ATO ) status, and enforcing cybersecurity ... Information System Security Officer (ISSO) WFH Flexible*Remote from MD, VA,...**About the Role** We are seeking an **Information System Security Officer (ISSO)** to support our federal government customer.… more
    St. George Tanaq Corporation (08/02/25)
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  • Cyber Security Analyst (Mid-Level)

    Oasis Systems, LLC (Rockville, MD)
    …reports, deviation requests, and any other necessary documents to support a system's authority to operate ( ATO ). LOCATION: Rockville, MD EXPERIENCE LEVEL: ... of Oasis Systems has an exciting opportunity for aCyber Security Analystin Rockville, MD. The Cyber Security ...aCyber Security Analystin Rockville, MD. The Cyber Security Analyst acts as a lead consultant, interfacing between… more
    Oasis Systems, LLC (09/19/25)
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  • Splunk Security Engineer (TS/SCI) (Ft.…

    SMX (Fort Belvoir, VA)
    …redundancy. + Compliance and Security : + Maintain RMF (Risk Management Framework) ATO ( Authority to Operate ) compliance for the Splunk system, ensuring ... Splunk Security Engineer (4672) (TS/SCI) (Ft. Belvoir, VA)at SMX(View...managing Splunk environments to support the organization's data analytics, security , and operational goals. This role focuses on onboarding… more
    SMX (10/03/25)
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  • Security Controls Assessor - Part time…

    TestPros (Sterling, VA)
    …are looking for professionals with experience in conducting NIST 800-53 Rev 5 based Authority To Operate ( ATO ) support. Responsibilities and Duties: You ... Program Management, Program Oversight, Process Audit, Intelligence Analysis, Cyber Security , NIST 800-53, NIST SP 800-171 / CMMC Consulting/Assessment/Compliance,… more
    TestPros (08/19/25)
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  • Information Systems Security Engineer

    SAIC (Chantilly, VA)
    …Subject Matter Experts (SMEs) on developing authorization packages in support of Achieving Authority to Operate ( ATO ) with required timelines. + Participate ... **Description** SAIC is seeking an experienced Information Systems Security Engineer (ISSE) for a position located in Chantilly, VA. The successful candidate will… more
    SAIC (08/07/25)
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  • Information System Security Officer ISSO

    TekSynap (Springfield, VA)
    …well as new IT Systems that are slated as new work products to develop an Authority to Operate ( ATO ) and follow-on Continuous Monitored system. As a ... **Responsibilities & Qualifications** **RESPONSIBILITIES** Information System Security Officer (ISSO) acts as the Designated Person(s) assigned to one or more… more
    TekSynap (07/26/25)
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  • Information System Security Officer

    Chenega Corporation (Arlington, VA)
    …to acquire and maintain an Information System's Authority to Operate ( ATO ) under the Federal Information Security Management Act (FISMA) of 2002. + Lead ... **Req ID:** 37610 **Summary** **Information System Security Officer (ISSO)** **Alexandria, VA** Are you ready...in support of their missions to sustain the national security and economic interests of our nation. SecuriGence is… more
    Chenega Corporation (09/15/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …Factor Authentication (MFA) solution + Manage Continuous Monitoring (CONMON) activities + Maintain Authority to Operate ( ATO ) + Provide status reports in ... ManTech seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer** to join our team in **Chantilly, VA.**...to join our team in **Chantilly, VA.** Senior Cyber Security engineers are responsible for the quality of cyber… more
    ManTech (09/17/25)
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  • RMF Cybersecurity Analyst - TS/SCI with CI Poly

    ENS Solutions (Washington, DC)
    … Officer (CISO), and Authorizing Official (AO) to successfully justify the issuing an Authority to Operate ( ATO ). + Acting as an appointed Information ... with ensuring our IT engineering solutions meet the highest security standards, that they adhere to all applicable standards,...+ Assisting with the transition of systems granted an ATO to the Operations branch and the assignment of… more
    ENS Solutions (09/20/25)
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