Security Assessment & Authorization Lead (Remote)

Unissant; Bethesda (MD); Hybrid; USD 120,000 - 150,000; Full time

Job summary

Unissant, Inc. is seeking a Security Assessment & Accreditation Lead to join our team and support our client.

The ideal candidate will manage the full lifecycle of Security Assessment and Authorization across enterprise systems and cloud environments, translating security requirements into practical, well-documented solutions that support compliance and mission success. The role requires 5–8 years of SA&A experience, proficiency with NIST RMF, and the ability to collaborate with ISSOs and

Qualifications

• Bachelor's Degree required; preferred fields include CS/IT/IS/OM.
• MBA/Master's preferred.
• Certifications such as CISSP and CAP desirable.

Responsibilities

• Lead full lifecycle of Security Assessment and Authorization activities across enterprise systems and cloud environments.
• Oversee development, review, and maintenance of ATO packages and security documentation.
• Prepare System Security Plans, Security Assessment Reports, POA&M, Risk Registers and compliance artifacts.
• Support assessment interviews, control validation, and risk-based decision documentation.
• Coordinate with system owners, ISSOs, and stakeholders throughout authorization and remediation tasks.
• Review packages prior to submission and ensure documentation aligns with federal requirements.

Skills

Security Assessment

ATO Packages

NIST RMF

POA&M

Risk Assessments

Control Testing

Stakeholder Interviews

TIC 3.0/Zero Trust

Cloud Security

AI Security

Education

Bachelor's Degree

MBA/Master's Degree (preferred)

Job description

Unissant, Inc. is seeking a Security Assessment & Accreditation Lead to join our team and support our client.

The ideal candidate will manage the full lifecycle of Security Assessment and Authorization across enterprise systems and cloud environments, translating security requirements into practical, well-documented solutions that support compliance and mission success. The role requires 5–8 years of SA&A experience, proficiency with NIST RMF, and the ability to collaborate with ISSOs and