Information Systems Security Engineer (ISSE)

Entarian is seeking experienced Information System Security Engineer (ISSE) to support the Naval Information Warfare Center Atlantic (NIWC Atlantic) Expeditionary Enterprise Systems and Services (E2S2) Division. NIWC Atlantic provides design acquisition and sustainment services for Marine Corps Systems Command (MCSC) Information Technology (IT) systems). The ISSE is responsible for integrating cybersecurity into system architectures throughout the system lifecycle ensuring information systems comply with applicable government policies cybersecurity standards and Risk Management Framework (RMF) requirements. This role works closely with systems engineers software developers architects ISSM/ISSO personnel and government stakeholders to engineer secure resilient solutions that support mission objectives while balancing security performance and operational requirements.

The ideal candidate will have demonstrated experience supporting large-scale defense or space environments involving space systems ground infrastructure mission operations communications networks cloud environments or enterprise information technology capabilities.

• Active Secret with TS Eligibility.
• Five (5) years with Bachelors degree or seven (7) years with HS/GED of practical experience demonstrating competency in Cybersecurity Engineering Test & Evaluation (T&E) or Assessment & Authorization (A&A)/ Certification & Accreditation (C&A) related field.
• Individual shall demonstrate a working knowledge of the Risk Management Framework (RMF) process and/or include prior experience with the
  Defense Information Assurance & Certification Accreditation Process (DIACAP).
• Individual shall have experience working with Information Assurance tools such as DISA Enterprise Mission Assurance Support Service (eMASS) or Assured Compliance Assessment Solution (ACAS) and may be required to hold an Interim Security Control Assessor qualification.
• Individual shall be familiar with security policies & guidance documents to assist with the preparation and maintenance of process artifacts and traceability documents purposed for compliance with Authority to Operate (ATO) requirements. The specialist shall be capable of evaluating security solutions to ensure they meet security requirements for processing up to classified information and supervise and/or maintain the operational security posture for an information system or program.
• Individual shall have experience assisting or developing system security policy and ensuring compliance of change management and configuration control processes.

• Experience supporting Department of Defense Intelligence Community U.S. Space Force or other classified government information systems
• Demonstrated experience implementing and engineering NIST RMF security controls in accordance with NIST SP 800-37 NIST SP 800-53 CNSSI 1253 and applicable DoD cybersecurity guidance.
• Strong understanding of secure systems engineering principles security architecture defense-in-depth secure configuration management and cybersecurity risk management.
• Experience with operating systems networking virtualization cloud technologies identity and access management encryption technologies and modern cybersecurity solutions.
• Experience conducting vulnerability assessments using tools such as ACAS Nessus SCAP or comparable vulnerability management platforms.
• Ability to produce high-quality engineering documentation technical analyses architecture recommendations and RMF artifacts.
• Security certification meeting DoD 8140 (or legacy DoD 8570) requirements such as Security GSEC CISSP CASP or IASAE certifications.
• Proficiency with Microsoft Office Suite including Word PowerPoint Excel Project and Outlook.
• Experience designing and implementing Zero Trust Architecture principles within enterprise or mission systems.
• Experience supporting cloud security hybrid cloud environments containerized applications Kubernetes or DevSecOps pipelines.
• Familiarity with Infrastructure as Code (IaC) automation scripting or configuration management tools such as PowerShell Python Ansible or Terraform.
• Experience performing security architecture reviews for large-scale distributed or systems-of-systems environments.
• Advanced cybersecurity certifications such as CISSP-ISSEP CCSP CASP GIAC GSEC or comparable engineering-focused certifications.
• Experience supporting secure software development software assurance DevSecOps or software factory environments.
• Familiarity with DoD Enterprise DevSecOps Reference Design Platform One or cloud-native security technologies.
• Excellent written and verbal communication skills with the ability to communicate complex cybersecurity concepts to technical teams program leadership and government stakeholders.

Formed through the strategic union of Sev1Tech and ERT Entarian is a premier provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating back to 1993 Entarian is a product of an evolved and fully diversified engineering and federal technology leader. From deep space to defense and civilian missions Entarian delivers secure mission-aligned digital solutions that drive national resilience and operational effectiveness. We dont just support modernization; we define it.

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Entarian is anEqual Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race color religion sex pregnancy sexual orientation gender identity national origin age protected veteran status or disability status.