• Tyto Athene (Washington, DC)
    **Description** Tyto Athene is searching fora ** Senior Information Systems Security Officer ( ISSO )** with privacy experience. The candidate will ensure that ... by applicable law. Submit a Referral (https://careers-gotyto.icims.com/jobs/1473/ senior -information-systems- security -officer-%28isso%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834326889) **Location** _US-DC-Washington_ **ID**… more
    DirectEmployers Association (09/24/25)
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  • Tyto Athene (Fairfax, VA)
    **Description** Tyto Athene is searching for a ** Senior Information System Security Officer ( ISSO )** to be responsible for the overall handling of ... of relevant experience. + Minimum of 5 years of relevant functional experience as an ISSO or Security Analyst. + PMP certification + Familiarity with program … more
    DirectEmployers Association (09/16/25)
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  • Applied Research Solutions (Dayton, OH)
    **Description** ARS is looking for an Information System Security Officer ( ISSO ). Our desire is to build a team of highly qualified professionals that will ... our awards and recognition program, and personalized attention from ARS Senior Managers.?? **Responsibilities:** + Maintain the operational security posture… more
    DirectEmployers Association (09/04/25)
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  • Applied Research Solutions (Dayton, OH)
    …assessment and reporting activities. + Analyze and report system and organizational security posture trends to the ISSM/ ISSO . + Provide cybersecurity ... at the edge, that provide enterprise services and cyber network defense capabilities to customers across the DoD. This...+ Audit support responsibilities + Analyze and report organizational security posture trends to the ISSM/ ISSO +… more
    DirectEmployers Association (09/04/25)
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  • COLSA Corporation (Huntsville, AL)
    …Operating Procedures (SOP's), etc. + Support Accreditation and Authorization (A&A) reviews by ISSO /E/M, as well as the Security Controls Assessor (SCA) At COLSA, ... enterprise-wide cyber systems and networks.* + Manages the full range of security issues including architectures, firewalls, electronic data traffic, and network more
    DirectEmployers Association (10/04/25)
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  • COLSA Corporation (Southport, NC)
    …roles, including at least 3-5 years of experience in a senior role with ISSO responsibilities. + Active Secret Security Clearance required. + Security + ... Teams (CPTs) and Black Start Exercises (BSEs), and present findings to senior leadership in a clear, actionable format, while performing all traditional duties… more
    DirectEmployers Association (08/21/25)
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  • Senior Information System Security

    Leidos (Annapolis Junction, MD)
    …and much more. **Join us and make a difference in National Security !** ** Senior Information System Security Officer ( ISSO )** Leidos currently has an ... . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission...opening for a ** Senior Information System Security Officer ( ISSO )** to work at our… more
    Leidos (09/06/25)
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  • Senior ISSO Security Manager

    Leidos (Baltimore, MD)
    …missions. The Digital Modernization Sector at Leidos currently has an opening for a Senior ISSO / Security Manager to work in our Baltimore, Maryland office. ... modernize and transform its legacy system. **Primary Responsibilities:** The Senior ISSO / Security Manager for a...Ability to obtain Public Trust + Knowledge of information security or related field, computer network penetration… more
    Leidos (10/10/25)
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  • Information Systems Security Officer…

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    **Information Systems Security Officer ( ISSO ) - Senior ** **Category:** Cyber Security **Main location:** United States, Virginia, Arlington **Position ... ISSO within our Intel sector advancing the national security mission through cutting edge technology. You must have...security approach. * Monitoring and Evaluation: They monitor network traffic, system logs, and security tools… more
    CGI Technologies and Solutions, Inc. (09/06/25)
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  • Senior Information System Security

    Steampunk (Mclean, VA)
    …(eg, Least Privileged, Defense-in-depth) and associated supporting technologies. + Application security and network security . + Demonstrated ability ... **Overview** The ** ISSO ** serves as a Cyber Security Specialist and will perform level III ISSO and/or ISSO support. **Contributions** + Ensuring that … more
    Steampunk (10/03/25)
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  • Senior Information Systems Security

    RTX Corporation (Aurora, CO)
    …a safer, more secure world. Our cybersecurity team is seeking a **Information Systems Security Officer ( ISSO )** to support our team **100% onsite** at our ... Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US...facility in **Aurora, Colorado.** The ISSO is responsible for the implementation of the cybersecurity… more
    RTX Corporation (09/16/25)
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  • Information System Security Officer…

    Lockheed Martin (Hanover, MD)
    …program personnel\. The ISSO also works closely with System Administrators and Network Engineers to ensure security patches and secure configurations are in ... & Mission Systems \(RMS\) division is seeking an experienced Information System Security Officer \( ISSO \) to protect mission critical information systems\. This… more
    Lockheed Martin (10/18/25)
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  • Information Security Officer - ISSO

    US Tech Solutions (Columbia, SC)
    …and compliance of **SCDHHS Information Systems and Data** . OCS seeks an expert ** Senior ISSO ** to oversee (and actively participate in) the day-to-day ... compliance requirements of complex information system operating environments. A successful Senior ISSO will lead the establishment, implementation, and/or… more
    US Tech Solutions (10/09/25)
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  • Information System Security Officer…

    Leidos (Oklahoma City, OK)
    … engineering, risk management, and vulnerability assessments. + Strong understanding of network security , security controls, and common cybersecurity tools ... The Multi Domain Solutions Division at Leidos is looking for an **Information Systems Security Officer ( ISSO )** to support a fast-paced program with the Air… more
    Leidos (09/04/25)
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  • Senior Information Systems Security

    Parsons Corporation (Colorado Springs, CO)
    … challenges in the space domain? We need your help. Our team is looking for a ** Senior Information Systems Security Officer ( ISSO )** . In this role you will ... (eg, firewalls, demilitarized zones, encryption); computer networking concepts and protocols, and network security methodologies; network security more
    Parsons Corporation (10/11/25)
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  • Special Access Programs (SAP) - Senior

    RTX Corporation (Marlborough, MA)
    …that create a safer, more secure world. Our cybersecurity team is seeking an ** Senior ** **Information System Security Officer ( ISSO )** to support **Special ... and associated NIST publications + Experience with audit reviews such as physical security , network and system event logs, password administration, file access… more
    RTX Corporation (10/22/25)
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  • Senior Information Security Systems…

    Parsons Corporation (Chantilly, VA)
    …and communication skills + Knowledge of computer networking concepts and protocols, and network security methodologies. + Knowledge of security violation ... Description:** Parsons is looking for a talented **Level 3 ISSO ** to join our growing team! In this mission...Familiarity with conducting research and analysis. + Familiarity with network and information system security principles and… more
    Parsons Corporation (10/10/25)
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  • Senior Information Systems Security

    RTX Corporation (El Segundo, CA)
    …that create a safer, more secure world. Our cybersecurity team is seeking a ** Senior Information Systems Security Officer ( ISSO )** to support our team ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (10/22/25)
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  • Information System Security Officer…

    Lockheed Martin (Colorado Springs, CO)
    …serve as a Classified Cyber Security Senior / Information System Security Officer \( ISSO \) and join our team's efforts in supporting and defending ... networks\. Successful candidates should be knowledgeable of information technology security principles, various computer/ network operating systems, and Microsoft… more
    Lockheed Martin (10/10/25)
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  • Information System Security Officer…

    KBR (Beavercreek, OH)
    …future of space defense. Position Summary: The selected candidate will serve in a Senior ISSO role and perform tasks related to Assessment & Authorization (A&A) ... Title: Information System Security Officer ( ISSO ) Belong. Connect. Grow....in the Digital Infrastructure (DI) Program assisting the DI Network program. Key Responsibilities: + Serve as an Information… more
    KBR (10/01/25)
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