Senior DoD Cybersecurity Engineer – RMF, STIG, Secret Clearance

Cybersecurity Jobs; San Diego (CA); On-site; USD 140,000 - 180,000; Full time

Benefits offered by this job

Premium health insurance coverage for

Disability plans

401(k) with 10% match

Comprehensive training and development

11 holidays + 15 days PTO

Job summary

NexGen Data Systems in San Diego, CA is seeking a Senior Cybersecurity Engineer IV to strengthen security for enterprise applications and workstation baselines.

The role supports authorization reviews with solid technical evidence and coordinates remediation across teams and vendors, aligned with Navy security configurations and RMF. A Master’s in Engineering and 10+ years in systems engineering are required, along with DoD Secret clearance.

Qualifications

• Active DoD Secret clearance required.
• DoD 8570/8140 OS and Cybersecurity certifications required.
• Master’s degree in an Engineering discipline.
• 10 years of professional experience in systems engineering.
• Experience supporting RMF security assessments.
• Experience interpreting ACAS/SCAP results.
• Experience applying DISA STIGs and Security Requirements Guides.
• Secret clearance required for onsite work at Government facilities.
• Favorable Tier 5 background investigation or equivalent for privileged access.
• Vendor certifications and IAT security certifications and cyberspace workforce training.

Responsibilities

• Prepare assessment artifacts and coordinate information with customers, vendors, and security assessors.
• Conduct vulnerability and configuration scanning using ACAS, SCAP, or other approved tools.
• Review findings against DISA STIG and SRG materials and evaluate impact on baselines.
• Coordinate corrections with vendors and system engineers, then verify remediation through rescanning or testing.
• Support application assessment scope and provide technical feedback to authorization and security engineering teams.
• Document unresolved findings, mitigations, and suggested improvements for review by security decision makers.

Skills

Security clearance

DoD certifications

RMF experience

ACAS/SCAP experience

DISA STIGs experience

Vulnerability remediation

Tier 5 background check

Vendor certifications

IAT certifications

Education

Master’s degree in Engineering

Tools

ACAS

SCAP

DISA STIG

RMF

Job description

NexGen Data Systems in San Diego, CA is seeking a Senior Cybersecurity Engineer IV to strengthen security for enterprise applications and workstation baselines.

The role supports authorization reviews with solid technical evidence and coordinates remediation across teams and vendors, aligned with Navy security configurations and RMF. A Master’s in Engineering and 10+ years in systems engineering are required, along with DoD Secret clearance.