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Senior Information Systems Security Officer (ISSO) Location US-WA-Whidbey Island ID 2026-3959 Category IT / Cyber Security / Network Systems Position Type Full-Time Remote No Clearance Required Top Secret/SCI Overview AMERICAN SYSTEMS is hiring a Sr Information Systems Security Officer to support mission-critical DoD systems at Whidbey Island, Washington. This role is suited for a TS/SCI-cleared security professional with strong RMF and JSIG experience who partners closely with ISSMs and AOs to maintain a compliant, resilient security posture across complex environments. Responsibilities As a Senior Information Systems Security Officer with AMERICAN SYSTEMS you will have the opportunity to: Maintain the operational security posture of assigned information systems in close coordination with the ISSM, ISO, and AO/DAO Prepare, review, and update RMF authorization packages, including continuous monitoring activities Conduct security impact analyses for configuration changes within authorization boundaries Ensure compliance with DoD, NIST SP 800-series, and DoDI/D 8500-series requirements Review audit logs, identify anomalies, and ensure security documentation remains current and accessible Identify cyber security vulnerabilities and support implementation of effective countermeasures Support system self-inspections, assessments, and RMF activities for internal and external stakeholders Coordinate and approve changes to system hardware, software, and firmware prior to implementation Ensure approved procedures are followed for media handling, sanitization, and destruction Provide ISSO support to in-house and customer organizations Participate in required technical and security training Travel within CONUS up to 10-20 percent annually in support of the program Qualifications Active TS clearance with SCI eligibility, SAP eligibility, and JSIG experience 5-7 years of experience in information assurance or cyber security roles, such as ISSO, system administrator, or network administrator Strong working knowledge of RMF, DoD security policy, and system authorization processes Demonstrated experience managing day-to-day security operations for DoD information systems DoD 8570 IAT Level II certification (e.g., Security+ CE, CySA+, GSEC, SSCP, CCNA-Security) IAM Level II certification preferred (e.g., CISSP or CISM) Solid understanding of network security principles and best practices Proven ability to troubleshoot security issues, automate repetitive tasks, and work independently or within a team Detail-oriented with a strong commitment to accuracy and compliance. Note: Travel will be less than 10 days per year in support of occasional functions Pay Transparency Statement AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $108,100.00/Yr. - USD $180,600.00/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance. EEO Statement EEO Race/Sex/Disability Status/Veteran Status EOE M/F/Disability/Veterans