IT Security Control Assessor
MCLEAN, VA, United States • Posted June 10, 2026
Job Type:
Full-time
Location:
MCLEAN, VA
Posted:
June 10, 2026
Category:
other-general
Application Deadline:
June 15, 2026
Role Description
**Job Family** **:**
Cyber Consulting
**Travel Required** **:**
Up to 25%
**Clearance Required** **:**
Ability to Obtain Secret
**What You Will Do** **:**
+ Conduct FISMA security control assessments in accordance with NIST SP 800-53 and NIST SP 800-53A
+ Support system authorization efforts across the RMF lifecycle
+ Perform control testing, interviews, and evidence reviews for management, operational, and technical controls
+ Document assessment results, findings, and risk determinations in SARs and related ATO artifacts
+ Identify control gaps, weaknesses, and POA&M items with clear, actionable remediation guidance
+ Coordinate with system owners, ISSOs, engineers, and program stakeholders during assessments
+ Support continuous monitoring activities, including ongoing control assessments and ad hoc reviews
+ Ensure assessments align with agency-specific cybersecurity compliance and information s...
Cyber Consulting
**Travel Required** **:**
Up to 25%
**Clearance Required** **:**
Ability to Obtain Secret
**What You Will Do** **:**
+ Conduct FISMA security control assessments in accordance with NIST SP 800-53 and NIST SP 800-53A
+ Support system authorization efforts across the RMF lifecycle
+ Perform control testing, interviews, and evidence reviews for management, operational, and technical controls
+ Document assessment results, findings, and risk determinations in SARs and related ATO artifacts
+ Identify control gaps, weaknesses, and POA&M items with clear, actionable remediation guidance
+ Coordinate with system owners, ISSOs, engineers, and program stakeholders during assessments
+ Support continuous monitoring activities, including ongoing control assessments and ad hoc reviews
+ Ensure assessments align with agency-specific cybersecurity compliance and information s...
Interested in this role?
Click the button below to start your application for IT Security Control Assessor at Guidehouse.
Apply Now