Information Systems Security Officer, Senior (TS Clearance w/SCI eligibility)

Overview: **AMERICAN SYSTEMS, a 100% employee\-owned contractor company,** is seeking an experienced **Senior Information Systems Security Officer (ISSO)** to support our customer's **Special Access Program** at **NAS Jacksonville, FL**. This role requires a highly capable information systems security professional with extensive **RMF and JSIG experience**, strong authorization package expertise, and **demonstrated ability to manually develop, organize, and maintain** **Bodies of Evidence (BOEs)**. The successful candidate will apply sound technical judgment to complex security issues, produce accurate and defensible security documentation, and **work effectively with** **government, technical, and security stakeholders** to support **mission\-critical national security systems**. Responsibilities: As a **Senior Information Systems Security Officer**, you will:* Maintain the security posture and operational readiness of assigned information systems. * Partner with ISSMs, ISOs, system owners, administrators, engineers, assessors, and Authorizing Officials. * Prepare and maintain RMF authorization packages and supporting security documentation. * Conduct system reviews, self\-inspections, continuous monitoring, and security assessments. * Develop and maintain system descriptions, network topologies, security plans, POA\&Ms, and assessment artifacts. * Create, organize, and maintain **Bodies of Evidence manually without GRC tools**. * Apply **RMF, JSIG, SAP, DoD, NIST**, and applicable STIG requirements. * Review system changes and conduct security impact analyses for hardware, software, firmware, configuration, and authorization boundary changes. * Coordinate proposed changes with the ISSM, ISO, AO, or DAO before implementation. * Monitor system recovery activities to ensure security protections are restored and functioning properly. * Ensure proper procedures are followed for clearing, sanitizing, storing, transporting, and destroying media and hardware. * Review audit records, document anomalies, and support vulnerability remediation efforts. * Support assessments, audits, inspections, ATO activities, design reviews, and corrective action tracking. * Prepare security status reports, briefings, and other program documentation. * Maintain accurate, current, and accessible security records. * Provide RMF support to DoD, National Agency, SAP, and contractor organizations. * **Travel within CONUS, generally up to 10 days annually.** Qualifications: * **U.S. citizenship required to obtain and maintain a security clearance**. * Active **TOP SECRET/SCI clearance** with SAP eligibility. * **8\-10 years of relevant experience** in roles such as ISSO, ISSM, system administrator, network administrator, cybersecurity analyst, or security engineer. * DoD 8140 **IAM Level III** certification, (*e.g., CISSP, CISM, C\-CISO, GSLC*) or ***the ability to obtain certification within 6 months from hire*** * Experience supporting classified or mission\-critical information systems. * Deep knowledge of the DoD RMF process, including authorization and continuous monitoring activities. * Working knowledge of **DoDI 8510\.01, NIST SP 800\-37, NIST SP 800\-53, NIST SP 800\-53A, CNSSI 1253, DoDM 5205\.07, JSIG, STIGs, and SRGs**. * **Demonstrated JSIG experience** supporting **Special Access Program** information systems. * Experience manually creating, compiling, and maintaining **Bodies of Evidence without GRC tools**. * Experience preparing authorization packages, **POA\&Ms**, control documentation, assessment artifacts, and continuous monitoring reports. * Experience conducting security impact analyses for system changes and configuration management activities. * Strong understanding of system and network administration, access control, audit logging, vulnerability management, and secure configurations. * Strong written and verbal communication skills. * Ability to work independently, manage competing priorities, and produce accurate, inspection\-ready documentation. **Travel:** Up to 10 days annually within CONUS to support program requirements. Pay Transparency Statement: AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee\-owners. The salary range for this position is USD $140,000\.00/Yr. \- USD $165,000/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