TS/SCI Security Specialist RMF Vulnerability & STIG Lead

CACI

Denver (CO)

On-site

USD 63,300 - 129,700

Full time

14 days+

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Job summary

CACI is seeking a Mid Security Specialist in Denver, CO to join an Agile program delivering GEOINT capabilities for NGA. You will be a hands-on security professional supporting RMF activities, vulnerability management, STIG hardening, and security documentation across the development and deployment lifecycle.

You will work with developers, platform engineers, and Government security stakeholders to ensure secure, compliant mission systems.

Qualifications

Bachelor's degree in Cybersecurity, Information Systems, or a related technical discipline (equivalent experience accepted).
4+ years of information security or information assurance experience.
Working knowledge of RMF and NIST SP 800-53 security controls.
Hands-on experience with vulnerability scanning and STIG compliance tools.
DoD 8570/8140 IAT Level II certification (Security+ CE or equivalent).
Strong documentation and communication skills.

Responsibilities

Support RMF activities including security control implementation, assessment, and continuous monitoring.
Conduct vulnerability scanning and analysis using ACAS/Nessus; track remediation through POA&Ms.
Apply and validate DISA STIG hardening across applications, operating systems, and infrastructure components.
Develop and maintain security documentation supporting Authorization to Operate (ATO) packages.
Coordinate with development teams to integrate security requirements into design and delivery.
Monitor security posture and report findings, risks, and metrics to program and Government stakeholders.
Support incident response, audit, and inspection activities as required.