ISSO Assessor

Systems Engineering Services is seeking a ISSO Assessor based in the Rockville, MD area. this will require work In Office.

This is a hybrid position based in Rockville, MD (3 days in office / 2 days remote) with a Public Trust clearance requirement.

Key Responsibilities:

• Conduct security control assessments in accordance with NIST RMF, NIST SP 800-53, and FedRAMP requirements
• Perform vulnerability testing, control validation, and security assessments across federal systems
• Document assessment findings, develop POA&Ms, and track remediation efforts
• Collaborate with system owners and ISSOs to ensure controls are properly implemented and maintained
• Support ATO package development, continuous monitoring activities, and authorization boundary definition
• Utilize ServiceNow for ticketing, workflow, and A&A documentation (integration experience highly valued)
• Provide recommendations to improve the client s security posture and streamline assessment processes

Required Qualifications:

• 3+ years of experience performing security assessments or A&A work in a federal environment
• Strong working knowledge of NIST SP 800-53, NIST RMF (800-37), and federal authorization processes
• Experience with vulnerability scanning, control testing, and POA&M management
• Ability to obtain and maintain a Public Trust clearance (U.S. Citizenship required)
• Strong written and verbal communication skills with the ability to produce clear, professional assessment documentation
• Willingness to work hybrid schedule (3 days onsite in Rockville, MD)

Preferred Qualifications:

• Prior experience supporting NIH, HHS, or other health-related federal agencies
• Hands-on experience with ServiceNow GRC / ITSM modules for A&A workflows
• Familiarity with Tenable, Microsoft Defender for Endpoint, or similar security tools
• Experience supporting large portfolios of systems and managing multiple ATOs simultaneously
• CISSP, CISM, CAP, or similar security certification

Jake Lutman

Technical Recruiter

Systems Engineering Services