Security Control Assessor

Location: Arlington, VA (On-Site)
Citizenship: US only
Clearance: Active TS/SCI (DHS EOD Suitability required)

About the Company

Argo Cyber Systems provides mission-critical cybersecurity support to U.S. Government agencies and critical infrastructure owners nationwide. Our teams deliver rapid incident response, advanced forensics, and coordinated recovery operations to protect vital systems from evolving cyber threats. We combine technical precision with operational agility, helping federal partners identify, contain, and recover from complex cyber incidents with speed and confidence. Argo Cyber Systems is a Service-Disabled Veteran-Owned Small Business (SDVOSB).

About the Role

Argo Cyber Systems is seeking a RMF/Security Control Assessor to support cybersecurity governance, risk, compliance, and modernization activities in federal environments. The selected candidate will work collaboratively with technical teams, program leadership, and customer stakeholders to deliver high-quality cybersecurity support in alignment with contract requirements and organizational standards. This opportunity is contingent upon the successful win of a contract bid.

Responsibilities

• Perform RMF security control assessments and validate implementation of technical, administrative, and operational controls.
• Review SSPs, policies, procedures, diagrams, and supporting artifacts to determine control compliance and implementation maturity.
• Develop Security Assessment Reports (SARs), assessment findings, risk statements, and remediation recommendations.
• Coordinate with ISSOs, ISSMs, system owners, engineers, and program leadership to collect evidence and resolve assessment issues.
• Support authorization package development, annual assessments, continuous monitoring, and control inheritance analysis.

Requirements

• U.S. Citizenship is required.
• Bachelor's degree with 3–4+ years progressive security control assessor experience.
• Hands-on experience with NIST RMF, NIST SP 800-53, control assessment procedures, and federal authorization packages.
• Ability to write assessment findings, remediation recommendations, and executive-ready assessment documentation.

Preferred Qualifications

• 5–8 years of RMF/A&A/control assessment experience.
• CAP, CISSP, CISM, Security+.
• eMASS/Xacta/CSAM experience.
• Experience assessing cloud, Zero Trust, and hybrid environments.
• Experience with multiple operating systems to include Linux/Unix, Windows, & Splunk.
• Practical experience with different scripting languages (e.g., Python, JavaScript, etc.).
• Practical experience with the Databricks Intelligence Platform.
• Experience with system vulnerability assessments.
• Knowledge of computer programming and scripting languages.
• Excellent written and verbal communication skills.
• Scaled Agile Framework (SAFe) experience.
• CompTIA Security+ or higher certification level preferred.

Benefits

• Medical, dental, vision, life insurance, and 401K.

Why Join Argo

As part of Argo Cyber Systems, you will serve at the forefront of national cyber defense—protecting civilian agencies and high-value assets from persistent and emerging threats. You'll join a veteran-founded, mission-driven team dedicated to operational excellence, collaboration, and innovation in the cyber domain.