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Security Control Assessor (SCA) (Need Top secret clearance)

Delviom LLC
Washington, DC Full Time
POSTED ON 10/16/2026
AVAILABLE BEFORE 11/15/2026

Senior Security Control Assessors to lead complex cybersecurity assessment and authorization activities involving classified DHS Intelligence Enterprise systems, Cross Domain Solutions (CDS), Special Access Program (SAP) systems, C-LAN extension sites, and cloud environments.

The role requires advanced RMF expertise, independent assessment leadership, risk evaluation, security authorization knowledge, and the ability to mentor junior assessment personnel.

Key Responsibilities

  • Lead complex security control assessments involving classified, sensitive, and mission-critical information systems.
  • Evaluate security controls employed directly by systems and inherited from enterprise common control providers.
  • Perform security assessments according to established Security Assessment Plans and applicable federal and IC requirements.
  • Assess Cross Domain Solutions, Special Access Program systems, cloud-hosted environments, and C-LAN extension sites.
  • Analyze implementation and effectiveness of security controls against NIST RMF, ICD 503, and CNSSI 1253.
  • Conduct vulnerability and configuration security assessments using enterprise security assessment tools.
  • Identify control deficiencies and provide technical recommendations for correcting vulnerabilities and compliance gaps.
  • Evaluate security risks and provide assessment findings supporting authorization decisions.
  • Develop and improve assessment methodologies, SOPs, and authorization processes.
  • Support improvements toward ongoing authorization and security assessment reciprocity.
  • Provide technical oversight and mentoring to junior security assessors.

Mandatory Skills

  • Advanced NIST Risk Management Framework
  • ICD 503 and CNSSI 1253
  • Security Control Assessments and A&A
  • Cross Domain Solutions and/or SAP system assessment requirements
  • Cloud security authorization principles
  • SSP, SAP, SAR, and POA&M evaluation
  • Security assessment methodologies and risk analysis
  • Hands-on experience with at least two tools such as NessACAS, SCAP, WebInspect, SonarQube, or STIG Viewer
  • Assessment procedure development and technical leadership
  • Experience leading complex assessments independently

Salary.com Estimation for Security Control Assessor (SCA) (Need Top secret clearance) in Washington, DC
$99,699 to $127,336
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