Junior Security Control Assessor

System One Holdings, LLC

$100K — $115K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's in Cybersecurity, IT, Computer Science, Information Systems, or similar; OR 4 additional years of relevant experience instead of a degree.
  • 3-5 years in cybersecurity, information assurance, RMF, security assessments, compliance, or IT operations.
  • Working knowledge of NIST RMF (800-37) and NIST SP 800-53 Rev. 5.
  • Experience reviewing security documentation and assessment evidence/artifacts.
  • Strong analytical skills with an emphasis on technical writing.

Responsibilities

  • Support independent Security Control Assessments (SCAs) throughout the authorization lifecycle.
  • Review and validate security authorization documentation such as SSP, SAP, SAR, and POA&M.
  • Assess security control implementation via documentation review, interviews, and technical validation.
  • Evaluate cloud security packages and inherited controls, as necessary.
  • Document findings and recommendations clearly and professionally.
  • Assist with validating evidence and tracking remediation activities.
  • Maintain partnerships with system owners and ISSOs while ensuring assessor independence.

Benefits

  • Remote work flexibility with occasional onsite requirements.
  • Opportunity for professional development under senior assessors.
  • Engagement with innovative cybersecurity frameworks and practices.
Full Job Description
Location: Bethesda, MD (mostly remote, occasional onsite required)
Work schedule: 40 hrs/week
Compensation: $100,000-$115,000/year
Target start: by end of August 2026
Clearance / Public Trust: Public Trust eligibility (Tier 2/3) required

About the role

We're hiring a Junior Security Control Assessor to support independent security control assessments across the system authorization lifecycle. You'll work under a senior assessor and help evaluate security control implementation, validate evidence, and document results in alignment with NIST Risk Management Framework (RMF) and NIST SP 800-53 Rev. 5, using JCAM practices.

This is a great fit for someone who enjoys cybersecurity compliance, evidence-based assessments, and strong technical writing-without being the person who authors the entire authorization package.

What you'll do

  • Support independent Security Control Assessments (SCAs) across the authorization lifecycle
  • Review and validate security authorization documentation (SSP, SAP, SAR, POA&M, contingency plans, and supporting artifacts)
  • Assess security control implementation through documentation review, interviews, and technical validation
  • Help evaluate cloud security packages and inherited controls (as applicable)
  • Document findings, recommendations, and remediation activities clearly and professionally
  • Assist with evidence validation and remediation tracking
  • Partner with system owners and ISSOs while maintaining assessor independence

Required qualifications

  • Education: Bachelor's in Cybersecurity, IT, Computer Science, Information Systems (or similar)
    • OR 4 additional years of relevant experience in lieu of a degree
  • Experience: 3-5 years supporting cybersecurity, information assurance, RMF, security assessments, compliance, or IT operations
  • Working knowledge of:
    • NIST RMF (800-37) and NIST SP 800-53 Rev. 5
    • JCAM methodology
  • Experience reviewing security documentation and assessment evidence/artifacts
  • Strong analytical skills and technical writing ability

Preferred (nice to have)

  • Experience with eMASS or similar GRC platforms
  • Familiarity with FedRAMP, cloud security concepts, C-SCRM, and related federal security frameworks
  • Experience supporting independent audits/assessments (e.g., external review organizations)

Tools/tech exposure (helpful)

  • JCAM
  • Tenable
  • CrowdStrike
  • Splunk / Splunk Enterprise
  • AWS
  • Python (plus)

Certifications (preferred, not all required)

  • ISC2 CC or CGRC
  • CompTIA Security+, CySA+, PenTest+, CASP+
  • CEH
  • Microsoft SC-900

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