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# 3363 - Sr. ISSO

- **Company:** Procession Systems
- **Location:** Reston, VA, United States (Remote available)
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** Xacta, Microsoft Access, Cloud Computing, Cyber Security, Information Systems, Network Architecture, SAP (Applications), Information Technology, Plan of Action and Milestones
- **Published:** October 12, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9235778/3363-sr-isso

## About the Role

* Demonstrates strong experience with IC/DoD customer's Assessment and Authorization (A&A) process (e.g., RMF, NIST800-53, ICD503).
 * Experience in developing and implementing DoD/DIA approved information security controls, procedures and documentation for the operation of standalone classified systems.
 * A Bachelor's Degree from an accredited institute in an area applicable to this position and eight (8) years of relevant experience
 * An additional four (4) years of relevant experience may be substituted for the bachelor's degree
 * Must presently be 8570 compliant (IAT Level 2 preferred); must be 8570 compliant (IAT Level 2)
 * Experience with one or more commercial government cloud service provider's system accreditation processes
 * Experience with the Xacta
 * Experience as a Cybersecurity Control Assessor for SAP
 * Experience with Ongoing Authorizations and Assessments
 * Experience with C2S Cloud, or DevOpsSec)

CLEARANCE:

 * TS/SCI with CI Polygraph minimum

## Description

* Provide subject matter expertise and consulting on security related matters for enterprise information system and network architectures, access problems, and implementation of security policies and procedures.
 * Assist in overseeing and managing day-to-day operation of SAP Information Systems.
 * Optimize system operation and resource utilization and performs system capacity planning/analysis while maintaining the security posture.
 * Assist team in Authorization and Accreditation (A&A) process using RMF across the design lifecycle for classified systems obtaining and maintaining Interim Authority to Operate (ATO), ATO and Authority to Connect (ATC).
 * Create and process RMF authorization SAP packages from submission to approval/disapproval
 * Develop and maintain IT security documents, including system security plans, risk assessments, Plan of Action and Milestones (POA&M), contingency plans, incident response plans, IT security policies and procedures.
 * Provide recommendations regarding remediation and mitigation of identified vulnerabilities by developing plan of action and milestones (POA&Ms).
 * Advise developers on integrating security requirements
 * Demonstrate a strong understanding of Networks, Cloud, and IT system security authorization procedures.