Mid Security Specialist

CACI International•St. Louis, MO

7d•$63,300 - $129,700•Onsite

About The Position

Join an Agile program delivering GEOINT capabilities to the National Geospatial-Intelligence Agency (NGA) as a hands-on security professional. Help keep mission systems secure and compliant across the full development and deployment lifecycle. Work alongside developers, platform engineers, and Government security stakeholders in a fast-moving environment. Directly support the security posture of systems that enable intelligence analysis and mission execution. This position is contingent upon contract award.

Requirements

TS/SCI Security Clearance with ability to obtain Polygraph
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.

Nice To Haves

Experience with eMASS, Xacta, or similar A&A management tools.
Familiarity with container and cloud security practices.
Experience operating within SAFe or Agile delivery frameworks.

Responsibilities

Support Risk Management Framework (RMF) activities including security control implementation, assessment, and continuous monitoring.
Conduct vulnerability scanning and analysis using tools such as 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.