DoD RMF/ATO Security Officer | eMASS Expert

CACI International Inc; United States; Remote; USD 100,000 - 150,000; Full time

Job summary

CACI International Inc. is seeking a cybersecurity professional to maintain RMF authorization postures for US federal or defense information systems. The role involves RMF documentation, authorization package coordination, continuous monitoring, and remediation tracking with stakeholders across security, engineering, and operations.

The candidate will create SSPs, coordinate ATO submissions using eMASS, and manage POA&Ms through remediation. Strong knowledge of NIST SP 800-53 Rev.

Qualifications

• 3–5 years supporting RMF, ATO, or cybersecurity compliance in a DoD or federal setting.
• Active Secret or Top Secret clearance required.
• Hands-on experience with eMASS and SSP development.
• Strong knowledge of NIST SP 800-53 Rev.5 and DoD RMF.
• Experience managing POA&Ms through remediation and closure.
• Ability to collaborate with security, engineering, operations, and system stakeholders.

Responsibilities

• Create and maintain System Security Plans (SSPs) for assigned systems.
• Coordinate Authorization to Operate (ATO) submissions and keep authorization records current using eMASS.
• Track Plans of Action and Milestones (POA&Ms) from discovery through remediation and closure.
• Carry out continuous monitoring and assess whether security controls are implemented and effective.
• Prepare Security Assessment Plans and coordinate Security Assessment Report activities.
• Track authorization status and compliance measures, and contribute to supply chain risk documentation and RMF governance planning.

Skills

Analytical skills

Communication skills

Organizational skills

Education

Bachelor’s degree

Tools

eMASS

Job description

CACI International Inc. is seeking a cybersecurity professional to maintain RMF authorization postures for US federal or defense information systems. The role involves RMF documentation, authorization package coordination, continuous monitoring, and remediation tracking with stakeholders across security, engineering, and operations.

The candidate will create SSPs, coordinate ATO submissions using eMASS, and manage POA&Ms through remediation. Strong knowledge of NIST SP 800-53 Rev.