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# Cybersecurity Engineer III

- **Company:** Everforth Apex
- **Location:** San Diego, CA, United States
- **Salary:** $139,360.0 - $149,760.0
- **Contract:** Temporary contract
- **Skills:** Cyber Security, Apex Code, SARS Software Products, Plan of Action and Milestones, Vulnerability Analysis
- **Published:** August 25, 2026
- **Apply:** https://www.dice.com/job-detail/3503ddcf-3dbc-459e-a5a4-416ede67fac0

## About the Role

* CISSP Certification.
 * Previous experience supporting NIWC, NAVWAR, Navy, DoD, or Federal cybersecurity programs.
 * ISSO, ISSE, RMF Analyst, A&A Analyst, or Security Compliance background.
 * Experience supporting classified systems and accreditation efforts.
 * Strong understanding of cybersecurity monitoring and incident response processes.

## Description

Apex Systems is seeking a highly experienced Cybersecurity Engineer III to support a critical Department of Defense program supporting the Naval Information Warfare Center Pacific (NIWC PAC). This role is focused on Assessment & Authorization (A&A) activities, cybersecurity compliance, and Risk Management Framework (RMF) accreditation efforts for mission-critical systems.

The ideal candidate will have extensive experience supporting DoD cybersecurity programs, maintaining system accreditations, performing security assessments, and managing the full RMF lifecycle utilizing eMASS. This position is best suited for cybersecurity professionals with strong A&A, ISSO, ISSE, RMF, or compliance backgrounds., * Support Assessment & Authorization (A&A) efforts in accordance with the DoD Risk Management Framework (RMF).

 * Develop, maintain, and update accreditation documentation including:
 + System Security Plans (SSPs)
 + Security Assessment Plans (SAPs)
 + Security Assessment Reports (SARs)
 + Plans of Actions & Milestones (POA&Ms)
 * Perform security control implementation, testing, validation, and compliance reviews.
 * Conduct vulnerability assessments, security audits, and risk analyses.
 * Manage and update eMASS packages throughout the accreditation lifecycle.
 * Support continuous monitoring activities including:
 + Quarterly IV&V reviews
 + STIG compliance assessments
 + Annual Security Reviews (ASRs)
 + Monthly POA&M updates
 * Assist with ATO, ATC, IATT, and related authorization processes.
 * Maintain DISA circuit connection documentation and inherited security controls.
 * Perform incident triage and cybersecurity monitoring activities.
 * Identify vulnerabilities and recommend remediation strategies.
 * Collaborate with system owners, engineers, security teams, and government stakeholders to ensure compliance with cybersecurity requirements.


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