Senior ATO Subject Matter Expert

Graham Technologies

3d • Hybrid

About The Position

Graham Technologies is seeking a Senior ATO Subject Matter Expert (Cybersecurity Engineer III) to support federal system authorization efforts. This role focuses on executing RMF activities, developing security documentation, and supporting ATOs across classified and unclassified systems.
Location: Hybrid/DC proper

Requirements

• 7+ years performing system security assessments and security documentation.
• 7+ years enhancing IT security policies aligned with federal and international standards.
• 7+ years of IT Security experience supporting A&A / ATO activities.
• Demonstrated experience authoring RMF artifacts.
• Strong working knowledge of: NIST SP 800-53 NIST SP 800-37 (RMF)
• Bachelor's degree.
• Minimum one (1) of the following certifications: CISA CRISC CISM CGEIT CISSP CAP
• Ability to attain a Public Trust.

Responsibilities

• Perform system security assessments and RMF activities through ATO.
• Develop and maintain RMF documentation (SSP, SAR, POA&M).
• Assess security controls against NIST SP 800-53 requirements.
• Support security upgrades and remediation activities.
• Assist with continuous monitoring and compliance reporting.
• Support authorization efforts for classified and unclassified systems.
• Collaborate with system owners, ISSOs, and security engineers.
• Utilize NIST SP 800-37 RMF methodology (JCAM preferred).

Benefits

• Four Weeks of Accrued PTO in the First Year
• Eleven Paid Federal Holidays
• Comprehensive Health, Dental, Vision, and Life Insurance
• 401(k) Plan with Annual Employer Contributions
• Flexible Schedules
• Reimbursements for Continued Education and Training

What This Job Offers

• Job Type: Full-time
• Career Level: Senior