Sr. Information Systems Security Officer

Knowledge Management • Washington, DC

1d • Onsite

About The Position

Serve as the primary ISSO responsible for maintaining the full security authorization posture of multiple federal operational divisions information systems. Manage the complete RMF lifecycle and serve as the key technical advisor to System Owners and Authorizing Officials.

Requirements

• 7+ years of direct ISSO experience in a federal cleared environment.
• Deep working knowledge of NIST SP 800-53, RMF, FISMA, and eMASS.
• Experience preparing and maintaining System Security Plans (SSPs) and ATO packages.
• Strong background in security control assessments and POA&M management.
• Proven ability to conduct continuous monitoring and vulnerability remediation tracking.
• Experience supporting FISMA audit preparation and quality reviews.
• Excellent stakeholder management and communication skills with senior government personnel.
• Demonstrated success managing multiple systems simultaneously.
• Strong documentation and artifact quality assurance skills.
• Ability to provide clear risk-based recommendations to Authorizing Officials.
• TS/SCI Eligible (must be able to obtain and maintain) security clearance.
• IAM Level III certification - CISSP, CISM, or CAP.
• CRISC, CISA, or Security+ certification.
• Bachelor's degree in Cybersecurity, Information Technology, or related field required.

Nice To Haves

• Master's degree preferred.
• Experienced federal ISSO from DOJ, DHS, or DoD with excellent communication and leadership skills.

Responsibilities

• Maintain the full security authorization posture of multiple federal operational divisions information systems.
• Manage the complete RMF lifecycle.
• Serve as the key technical advisor to System Owners and Authorizing Officials.
• Prepare and maintain System Security Plans (SSPs) and ATO packages.
• Conduct security control assessments.
• Manage POA&M.
• Conduct continuous monitoring and vulnerability remediation tracking.
• Support FISMA audit preparation and quality reviews.
• Provide clear risk-based recommendations to Authorizing Officials.
• Manage multiple systems simultaneously.

Benefits

• Health, dental, and vision insurance
• 401(k) retirement plan
• Paid time off (PTO) and holidays
• Group Term Life and Accidental Death and Dismemberment Insurance
• Voluntary Term Life Insurance
• Short and Long-term disability insurance

What This Job Offers

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