Cyber Security Engineer

CACI International • Austin, TX

12d • $108,400 - $227,500 • Onsite

About The Position

CACI is seeking a skilled Cyber Security Engineer to support the design, implementation, and maintenance of secure systems and networks. The successful candidate will work closely with CACI's development and IT teams to integrate security best practices, identify and mitigate security vulnerabilities, and ensure compliance with industry standards. You’ll contribute to strengthening the security posture of critical infrastructure and systems supporting CACI operations. This role involves translating RMF categorization results and applicable control baselines into implementable, testable system security requirements, designing security architectures and control implementations, and developing and maintaining security architecture artifacts. The engineer will analyze ACAS/Nessus and STIG/SCAP results, evaluate candidate security solutions, serve as a technical authority for control implementation decisions, provide security-focused insights, and research emerging security technologies. The office location for this opportunity is in Austin, TX.

Requirements

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or a related field (will consider relevant experience in lieu of a degree) and 8+ years of cybersecurity engineering experience, including 3+ years in a security architecture or systems security engineering capacity.
• Must have an active Top Secret/SCI clearance to start.
• US Citizenship Required.
• Demonstrated experience carrying at least one system through a full RMF authorization cycle; categorization through ATO in an engineering role.
• Working knowledge of NIST SP 800-53 Rev 5, NIST SP 800-37, CNSSI 1253, DISA STIGs and SRGs, and eMASS/XACTA/SNOW CAM.
• Demonstrated expertise in cybersecurity engineering activities, including security architecture development, vulnerability assessment, risk assessment, and remediation planning.
• Experienced in hardening operating systems (Windows Server, RHEL/Linux) and applications to align with STIG requirements and compliance obligations.
• Hands-on proficiency with enterprise networking, network segmentation and boundary protection, and virtualization platforms.
• Scripting and automation capability (Python, PowerShell, Bash) sufficient to build tooling and automate compliance evidence collection.
• Ability to read system and software design documentation and independently identify security implications and control gaps.
• Proficient in security toolsets, including vulnerability assessment platforms (Nessus/Tenable Security Center, ACAS), SIEM platforms, and endpoint security tooling.
• Exceptional problem-solving abilities with a proactive approach to identifying and mitigating security risks.
• Ability to work independently and within a team, adapting to dynamic security challenges.

Nice To Haves

• Advanced architecture certifications such as CISSP-ISSAP, CCSP, or a cloud platform security certification (AWS Security Specialty, Azure AZ-500).
• Experience architecting systems in DoD cloud environments at IL4/IL5 or above.
• Container and Kubernetes security experience; familiarity with Iron Bank or Platform One.
• Familiarity with DevSecOps practices and integrating security controls and evidence generation into CI/CD pipelines.
• Knowledge of Infrastructure as Code tools such as Terraform or Ansible for secure, repeatable infrastructure management.
• Understanding of data encryption techniques, FIPS 140-3 validated implementations, and secure data handling practices.
• Experience with cross-domain solutions, CSfC, or PKI/ICAM implementation.
• Prior experience on the assessment side (Security Control Assessor, IV&V, or Navy Qualified Validator).
• Familiarity with Navy RMF process specifics and NAVAIR system delivery requirements.
• Experience in disconnected, standalone, or embedded/tactical system environments.

Responsibilities

• Collaborate with cross-functional engineering teams to design, implement, and sustain secure system architectures across the development and delivery lifecycle.
• Embed security into engineering processes, design reviews, configuration baselines, build pipelines, and delivery gates rather than assessing it after the fact.
• Provide security engineering input to modernization efforts including cloud migration, Zero Trust architecture alignment, containerization, and automation of compliance evidence generation.
• Maintain and enhance internally developed security tooling and automation to ensure it adheres to best practices and meets evolving cybersecurity standards.
• Develop and maintain security engineering standards, guidelines, and reference patterns for reuse across programs and systems.
• Mentor junior engineers and ISSOs on control implementation, assessment preparation, and secure design principles.

Benefits

• flexible time off benefit
• robust learning resources
• competitive compensation
• competitive benefits
• learning and development opportunities
• comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior