Senior Systems Security Engineer with Security Clearance

Caelum Research Corporation; Dahlgren (VA); On-site; USD 140,000 - 210,000; Full time

Job summary

Caelum Research Corporation seeks a Senior Systems Security Engineer to protect Navy networks and systems. You will lead vulnerability assessments, accreditation activities, and risk mitigation in a mission-critical environment.

Role requires 6+ years in cybersecurity engineering, DoD/Navy experience preferred, and IAT Level III certification. You will implement security controls, perform RMF checks, STIG scans, system hardening, and penetration testing while collaborating with engineers and

Qualifications

• Bachelor's degree in Cybersecurity or related field.
• 6+ years of cybersecurity engineering experience.
• DoD/Navy system experience preferred.
• IAT Level III certification required.

Responsibilities

• Implement and monitor cybersecurity controls and best practices.
• Conduct STIG scans, RMF compliance checks, and accreditation documentation.
• Perform system hardening, vulnerability assessments, and penetration testing.
• Collaborate with engineers, ISSOs, and stakeholders to maintain system security.

Skills

Cybersecurity engineering

6+ years experience

IAT Level III

Analytical mindset

Education

Bachelor's degree in Cybersecurity or related field

Tools

NIST SP 800-53

RMF

DISA STIG

SCAP tools

Job description

Clearance Required: Top Secret

Education: Bachelor’s degree in Cybersecurity or related field

Experience: 6+ years

About the Role:

Become part of a mission-critical cybersecurity team as a Senior Systems Security Engineer, protecting the Navy’s networks and systems from evolving threats. You’ll lead vulnerability assessments, accreditation activities, and risk mitigation efforts.

What You’ll Do:

Implement and monitor cybersecurity controls and best practices. Conduct STIG scans, RMF compliance checks, and accreditation documentation. Perform system hardening, vulnerability assessments, and penetration testing. Collaborate with engineers, ISSOs, and stakeholders to maintain system security.

What You’ll Bring:

6+ years in cybersecurity engineering, preferably with DoD/Navy systems. IAT Level III certification required. Expertise in NIST 800-53, RMF, DISA STIG, and SCAP tools. Strong analytical mindset and commitment to cyber excellence.