Defense ISSE: Secure System Architect (RMF & DoD)

Entarian

North Charleston (SC)

On-site

USD 100,000 - 140,000

Full time

4 days ago

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Job summary

Entarian is seeking an experienced Information System Security Engineer (ISSE) to support NIWC Atlantic's E2S2 division. You will integrate cybersecurity into system architectures across the lifecycle, ensuring RMF compliance with DoD guidance, CNSSI, NIST standards, and government policies.

The role requires collaboration with engineers, ISSO/ISSM, and stakeholders to balance security with performance. The ideal candidate brings defense or space environment experience, strong RMF and IA tool

Qualifications

Active Secret with TS eligibility; DoD-targeted security clearance considerations.
5 years with Bachelor’s degree or 7 years with HS/GED in Cybersecurity, Engineering, T&E or A&A/C&A.
Familiarity with RMF process and DIACAP are preferred.
Experience with IA tools such as eMASS or ACAS and IATO compliance basics.
Ability to document security policies, change control, and traceability for government systems.

Responsibilities

Integrate cybersecurity requirements into system architectures and lifecycle.
Engineer and validate security controls per RMF, NIST standards, and DoD guidance.
Perform risk assessments, vulnerability analyses, and mitigation planning.
Support system architecture reviews and configuration management activities.
Develop SSP content, control statements, diagrams, and RMF artifacts.
Prepare SAPs, SARs, POA&Ms, and continuous monitoring documentation.