Cybersecurity Engineer — TS Clearance (On‑Site)

CACI International; Sterling (IL); On-site; USD 73,000 - 149,000; Full time

Job summary

CAC I International seeks a Cybersecurity Engineer to help secure advanced EW systems. You will collaborate with system developers to ensure ATO readiness, and work with customer ISSOs to navigate the ATO process and continuous monitoring.

You will maintain DISA STIG/Nessus currency, conduct risk analyses, and update SSPs, test plans, and POA&Ms as needed. A strong Linux security background and DoD 8570 IAT II certification are required.

Qualifications

• Active Top Secret clearance with SCI eligibility.
• On‑site presence in Sterling, VA is required; remote or hybrid work is not available.
• DoD 8570 IAT Level II certification (Security+ CE or higher).
• Three (3) years of hands‑on cybersecurity compliance experience in a Linux environment.
• Familiarity with ICD 503 and NIST 800‑53, and experience executing DISA SCC/SCAP testing.
• Linux experience with a focus on security hardening.
• BASH or other Linux scripting capabilities to validate security compliance.
• Bachelor’s degree in Systems Engineering, Software Engineering, Electrical Engineering, or related field (equivalent combination of experience and education considered).
• Strong verbal and written communication skills.

Responsibilities

• Work with the system developers to ensure that we are delivering systems that can attain ATO.
• Work hand-in-hand with the customer ISSOs to navigate through the ATO process and Continuous Monitoring.
• Maintain system currency with DISA STIG and Tenable Nessus.
• Conduct Risk Analysis using CVEs, plugins, IAVAs, and related security information.
• Update security documentation (SSP, Test Plans & scripts, POA&M, etc.) as required.

Skills

Top Secret clearance

Linux security

Bash scripting

Communication skills

IAT Level II

Systems engineering

Education

Bachelor’s degree in Systems Engineering

Job description

CAC I International seeks a Cybersecurity Engineer to help secure advanced EW systems. You will collaborate with system developers to ensure ATO readiness, and work with customer ISSOs to navigate the ATO process and continuous monitoring.

You will maintain DISA STIG/Nessus currency, conduct risk analyses, and update SSPs, test plans, and POA&Ms as needed. A strong Linux security background and DoD 8570 IAT II certification are required.