TS/SCI ISSO — Cloud Security & RMF Specialist

CACI International; Aurora (CO); On-site; USD 75,000 - 158,000; Full time

Job summary

CACI International is seeking an Information Systems Security Officer to support RMF/ATO activities, assess cloud security postures, and coordinate with developers and government stakeholders. You will maintain SSPs, POAMs, and system inventories while monitoring security controls across complex environments.

The role requires TS/SCI with Poly and DoD 8140 IAT II certifications, with hands-on work in RMF, risk management, and continuous monitoring.

Qualifications

• 3–6 years of cybersecurity experience.
• Active TS/SCI with Poly.
• DoD 8140 IAT Level II certification (e.g., Security+, CCNA Security, SSCP).
• Knowledge of RMF, NIST 800-53/800-171 control sets.

Responsibilities

• RMF & ATO: build/update SSPs, POAMs, inventories, and topology diagrams.
• Security engineering & cloud oversight for AWS/Azure platforms.
• Vulnerability/risk analysis to support continuous monitoring and ATO.
• Establish continuous monitoring and briefing of risks to stakeholders.

Skills

RMF & ATO

Cloud Security

Vulnerability Analysis

Continuous Monitoring

NIST Controls

Governance Docs

Technical Oversight

Security Engineering

Dev Collaboration

Risk Assessment

Education

TS/SCI with Poly

DoD 8140 IAT II (Security+, CCNA Security, SSCP)

Tools

Xacta

SNOW

Nessus

Splunk

Anchore

AWS

Azure

Job description

CACI International is seeking an Information Systems Security Officer to support RMF/ATO activities, assess cloud security postures, and coordinate with developers and government stakeholders. You will maintain SSPs, POAMs, and system inventories while monitoring security controls across complex environments.

The role requires TS/SCI with Poly and DoD 8140 IAT II certifications, with hands-on work in RMF, risk management, and continuous monitoring.