Senior Federal Security Control Assessor – A&A/ATO Expert

Intellect Solutions LLC; Rockville (MD); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Intellect Solutions LLC in Rockville, MD, is seeking a Security Assessor to support federal A&A/ATO and continuous monitoring. You will independently assess controls, review documentation, identify risks, and validate remediation.

The ideal candidate has 5+ years in cybersecurity, 3+ years in federal A&A/NIST RMF, and hands‑on assessment experience, with strong NIST knowledge and communication skills. Onsite at federal facilities with cross‑agency collaboration.

Qualifications

• Bachelor’s degree in cybersecurity, IT, computer science, engineering, or related field.
• 5+ years of cybersecurity/information security experience.
• 3+ years of direct federal A&A, ATO, or NIST RMF experience.
• Hands‑on Security Control Assessor experience.
• Strong knowledge of NIST SP 800-37, 800-53, 800-53A, and 800-30.
• Experience reviewing federal security authorization packages and technical security evidence.
• Strong written and verbal communication skills.

Responsibilities

• Conduct security control assessments in accordance with the NIST RMF.
• Support A&A/ATO activities, including initial authorizations, renewals, and continuous monitoring.
• Develop and execute Security Assessment Plans and prepare Security Assessment Reports.
• Review SSPs, SAPs, SARs, POA&Ms, risk assessments, contingency plans, vulnerability scans, and supporting evidence.
• Document findings, assess risk, validate corrective actions, and support closure of deficiencies.
• Coordinate with system owners, engineers, ISSOs, cybersecurity teams, and government stakeholders.

Skills

Security assessment

NIST RMF

Communication

Hands-on

Education

Bachelor’s degree in cybersecurity/IT/CS/engineering

Tools

GRC platforms

Tenable Nessus Qualys Splunk

Job description

Intellect Solutions LLC in Rockville, MD, is seeking a Security Assessor to support federal A&A/ATO and continuous monitoring. You will independently assess controls, review documentation, identify risks, and validate remediation.

The ideal candidate has 5+ years in cybersecurity, 3+ years in federal A&A/NIST RMF, and hands‑on assessment experience, with strong NIST knowledge and communication skills. Onsite at federal facilities with cross‑agency collaboration.