> Markdown version of [/jobs/ext/4720703-information-systems-security-officer-ts-sci](https://www.wearedevelopers.com/jobs/ext/4720703-information-systems-security-officer-ts-sci). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Information Systems Security Officer (TS/SCI) - **Company:** Strategic Inc - **Location:** Arlington, VA, United States - **Experience:** Experienced - **Salary:** $122,000 - $222,000 - **Contract:** Permanent contract - **Skills:** Microsoft Access, Cyber Security, File Transfer, Security Content Automation Protocol, Software Vulnerability Management, SARS Software Products, CIS Benchmarks, Vulnerability Analysis - **Published:** November 14, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9312709/information-systems-security-officer-tssci ## About the Role Bachelor's degree and 5+ years of related cybersecurity or information systems security experience. - Minimum of 3 years of experience serving as an ISSO or in a comparable information systems security role. - Strong knowledge of DoD cybersecurity requirements, NIST standards, and the Risk Management Framework (RMF). - Experience supporting system assessment and authorization activities, including ATO processes and security documentation. - Familiarity with cybersecurity assessment and vulnerability management tools, including ACAS, SCAP, and STIGs. - Experience supporting classified information systems or Special Access Programs (SAPs). - Strong analytical, problem-solving, communication, and documentation skills. - Active TS/SCI clearance Certifications: - Intermediate or Advanced 8140 Certificates, one or more of the following: Intermediate: Sec+, SSCP, GSEC, CGRC/CAP, CCSP, CCISO, CASP+ Advanced: CISM, CISSO, CISSP, CISSP-ISSMP, GCIA, GCIH, GCSA, GICSP, GSLC. ## Description Implement and maintain information systems security policies, procedures, and controls in accordance with DoD cybersecurity requirements, NIST standards, and applicable security guidance. - Support Risk Management Framework (RMF) and Authorization to Operate (ATO) processes, including preparation of authorization packages, security assessments, and coordination with Authorizing Officials (AOs) and Security Control Assessors (SCAs). - Develop, review, and maintain security documentation, including System Security Plans (SSPs), Security Assessment Reports (SARs), Plans of Action and Milestones (POA&Ms), and other required authorization artifacts. - Conduct risk and vulnerability assessments using security tools such as ACAS, Tenable, SCAP, and STIGs, and provide recommendations for remediation and risk mitigation. - Support continuous monitoring activities, including evaluating security controls, identifying vulnerabilities, and tracking corrective actions. - Monitor and document security-relevant configuration changes to hardware, software, and systems to maintain compliance with approved security baselines. - Investigate, document, and report security incidents and compliance violations, and assist in implementing appropriate corrective measures. - Coordinate with Information Systems Security Managers (ISSMs), system administrators, government program managers, and other stakeholders to ensure security requirements are addressed throughout the system life cycle. - Support cybersecurity training, awareness, inspections, and self-assessments to maintain compliance with applicable DoD security requirements. - Collaborate with IT, engineering, and technical teams to integrate cybersecurity requirements into system designs, operations, and processes. - Support security procedures for classified information systems, including media handling, sanitization, system interconnections, and Assured File Transfers (AFT), as applicable.