Senior Cyber Security Engineer (TS/SCI) RMF & Zero Trust

CACI International Inc; Austin (TX); On-site; USD 108,000 - 228,000; Full time

Job summary

CACI International Inc. invites a Cyber Security Engineer to join our Austin, TX team to design, implement, and maintain secure systems. You’ll work with development and IT to embed RMF controls, assess risks, and ensure compliance with NIST and DISA standards.

Responsibilities include translating vulnerability findings into remediation plans, developing security architectures, and producing authorization artifacts. TS/SCI clearance and 8+ years of cybersecurity engineering are required.

Qualifications

• Bachelor’s degree or relevant experience with 8+ years in cybersecurity engineering.
• Active TS/SCI clearance to start.
• Experience delivering RMF/ATO lifecycle for DoD systems.
• Strong knowledge of NIST SP 800-53 Rev 5 and STIGs.

Responsibilities

• Translate RMF results into implementable security requirements across hardware, software, and networks.
• Design security architectures satisfying authorization and mission constraints.
• Develop security artifacts and data flow diagrams.
• Analyze ACAS/Nessus/STIG results to drive remediation and risk decisions.
• Provide technical direction for network, infra, and system architecture.
• Mentor engineers on control implementation and secure design.

Skills

RMF & ATO

NIST SP 800-53

Vulnerability assessment

Scripting: Python

Education

Bachelor’s degree or relevant experience

Tools

ACAS/Nessus

eMASS/SNOW CAM

STIGs

Job description

CACI International Inc. invites a Cyber Security Engineer to join our Austin, TX team to design, implement, and maintain secure systems. You’ll work with development and IT to embed RMF controls, assess risks, and ensure compliance with NIST and DISA standards.

Responsibilities include translating vulnerability findings into remediation plans, developing security architectures, and producing authorization artifacts. TS/SCI clearance and 8+ years of cybersecurity engineering are required.