{"schemaVersion":"jobsearcher.job.v1","id":"43726a366d1c905df58bbccd","url":"https://jobsearcher.com/jobs/43726a366d1c905df58bbccd","canonicalUrl":"https://jobsearcher.com/jobs/43726a366d1c905df58bbccd","title":"Senior Security Systems Engineer","description":"Tharros is seeking a skilled Senior Security Systems Engineer professional to support Department of Defense (DoD) systems through the full lifecycle of Assessment and Authorization (A&A) activities. This position will support NSWCDD in Dahlgren, VA. Responsibilities include authoring cybersecurity documentation, conducting system analysis, and developing A&A artifacts in alignment with DoD policies and standards (e.g., DoDI 8500.2, DISA STIGs, NSA guidelines).\n\nResponsibilities:\n\nDevelop and maintain A&A documentation using Microsoft Office tools (Word, Excel, Visio).\nAnalyze and document system architecture and operations from a cybersecurity perspective.\nIdentify and document system CONOPS and derive Mission Assurance Categorization.\nLead the research and implementation of logical and physical security solutions to meet DoD compliance requirements.\nApply DISA STIGs and NSA recommendations to ensure system hardening.\nIdentify and lead the resolution of compliance gaps, DoD security policies and requirements.\nAuthor and update system security requirements and specifications.\nPlan, execute and document security tests and vulnerability assessments.\nServe as the Information Assurance Officer (IAO) and primary security point of contact for assigned systems.\nConduct and document risk assessments based on known vulnerabilities and threat actor tactics.\nAnalyze and secure physical and virtual connectivity of Naval warfare systems and interfaces.\nServe as Information Systems Security Officer (ISSO), managing all cybersecurity aspects of assigned systems.\nPlan, execute, and document results of system security tests.\nDevelop and manage Information Assurance Vulnerability Management (IAVM) Plans.\nLead the creation of System Security Administrator and Operators Manuals (SSAOM).\nOversee efforts to obtain Authorization to Operate (ATO) and address issues related to Interim ATOs (IATOs).\nDevelop and/or use MBSE models to perform cybersecurity analysis.\nMinimum of 7 years of experience with security engineering with Navy afloat/tactical combat systems\nPreferred experience with Security Engineering on Combat Weapon Systems (Aegis, SSDS, Zumwalt)\nMinimum IAT Level II per DoD 8570.01 and/or Navy Qualified Validator qualification\nStrong understanding of DoD Cybersecurity policies for both Land Based and afloat/tactical systems.\nAbility to communicate clearly and succinctly in written and oral presentations.\nMinimum Active Secret Clearance.\nTharros combines extensive cyber defense knowledge with the world’s preeminent vulnerability expertise to identify and defend against attacks before they become problems. Working at mission speed, we harden mission systems faster and secure them for longer, so agencies never lose the mission edge. Tharros lifts the veil of enterprise cybersecurity to detect zero days before they affect you, enabling mission maneuverability and the confidence to move missions forward.\n\nIn the ever-evolving realm of cyberspace, we are dedicated to becoming the paramount defender in the 5th warfighting domain. By pioneering innovative security solutions and fostering an environment of continuous learning and vigilance, we aim to protect the interests of our nation’s security. Our commitment to excellence in cybersecurity will establish new benchmarks, transforming the digital landscape into a secure and thriving frontier for future generations.\n\nTharros. See Everything. Secure Anything.\n\nTharros is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer and make employment decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected status.","company":"Analygence","rawCompany":"analygence","city":"Dahlgren","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-04-14T11:17:14.386Z","occupations":[{"code":"15-1299.05","title":"Information Security Engineers","slug":"information-security-engineers"},{"code":"15-1212.00","title":"Information Security Analysts","slug":"information-security-analysts"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"928110","title":"National Security","slug":"national-security"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541330","title":"Engineering Services","slug":"engineering-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Security Systems Engineer","description":"Tharros is seeking a skilled Senior Security Systems Engineer professional to support Department of Defense (DoD) systems through the full lifecycle of Assessment and Authorization (A&A) activities. This position will support NSWCDD in Dahlgren, VA. Responsibilities include authoring cybersecurity documentation, conducting system analysis, and developing A&A artifacts in alignment with DoD policies and standards (e.g., DoDI 8500.2, DISA STIGs, NSA guidelines).\n\nResponsibilities:\n\nDevelop and maintain A&A documentation using Microsoft Office tools (Word, Excel, Visio).\nAnalyze and document system architecture and operations from a cybersecurity perspective.\nIdentify and document system CONOPS and derive Mission Assurance Categorization.\nLead the research and implementation of logical and physical security solutions to meet DoD compliance requirements.\nApply DISA STIGs and NSA recommendations to ensure system hardening.\nIdentify and lead the resolution of compliance gaps, DoD security policies and requirements.\nAuthor and update system security requirements and specifications.\nPlan, execute and document security tests and vulnerability assessments.\nServe as the Information Assurance Officer (IAO) and primary security point of contact for assigned systems.\nConduct and document risk assessments based on known vulnerabilities and threat actor tactics.\nAnalyze and secure physical and virtual connectivity of Naval warfare systems and interfaces.\nServe as Information Systems Security Officer (ISSO), managing all cybersecurity aspects of assigned systems.\nPlan, execute, and document results of system security tests.\nDevelop and manage Information Assurance Vulnerability Management (IAVM) Plans.\nLead the creation of System Security Administrator and Operators Manuals (SSAOM).\nOversee efforts to obtain Authorization to Operate (ATO) and address issues related to Interim ATOs (IATOs).\nDevelop and/or use MBSE models to perform cybersecurity analysis.\nMinimum of 7 years of experience with security engineering with Navy afloat/tactical combat systems\nPreferred experience with Security Engineering on Combat Weapon Systems (Aegis, SSDS, Zumwalt)\nMinimum IAT Level II per DoD 8570.01 and/or Navy Qualified Validator qualification\nStrong understanding of DoD Cybersecurity policies for both Land Based and afloat/tactical systems.\nAbility to communicate clearly and succinctly in written and oral presentations.\nMinimum Active Secret Clearance.\nTharros combines extensive cyber defense knowledge with the world’s preeminent vulnerability expertise to identify and defend against attacks before they become problems. Working at mission speed, we harden mission systems faster and secure them for longer, so agencies never lose the mission edge. Tharros lifts the veil of enterprise cybersecurity to detect zero days before they affect you, enabling mission maneuverability and the confidence to move missions forward.\n\nIn the ever-evolving realm of cyberspace, we are dedicated to becoming the paramount defender in the 5th warfighting domain. By pioneering innovative security solutions and fostering an environment of continuous learning and vigilance, we aim to protect the interests of our nation’s security. Our commitment to excellence in cybersecurity will establish new benchmarks, transforming the digital landscape into a secure and thriving frontier for future generations.\n\nTharros. See Everything. Secure Anything.\n\nTharros is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer and make employment decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected status.","datePosted":"2026-04-14T11:17:14.386Z","dateModified":"2026-04-14T11:17:14.386Z","hiringOrganization":{"@type":"Organization","name":"Analygence","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Dahlgren","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"43726a366d1c905df58bbccd"},"url":"https://jobsearcher.com/jobs/43726a366d1c905df58bbccd"}}