Information Systems Security Officer

Entiarian is looking for an experienced Information Systems Security Officer (ISSO) who can prepare, submit, and monitor accreditation packages through the Risk Management Framework (RMF) process ensuring receipt of Interim Authority to Test (IATT) or Authority to Operate (ATO) in support of the Naval Supply Systems Command (NAVSUP) Ordnance Information System (OIS) program. The ISSO will maintain current operating cybersecurity environment within AWS GovCloud operating environment.

The ISSO will apply their knowledge of DOD Cybersecurity processes and best practices used to secure technical solutions, including applications, systems, architectures, and infrastructures.

This critical role will also be responsible for:

Meeting and maintaining DOD RMF CYBER certification and accreditation requirements, including researching, testing and providing technical information for obtaining required system accreditation.
• Developing Security Requirements Traceability Matrix (STRM), aligning security requirements with the individual components of a system.
• Performing checks of systems and applications for Information Assurance vulnerabilities using approved automated IA tools (ACAS, VRAM, SCAP-compliant scanners, DISA STIG Viewer, etc.), custom scripts and manual processes (i.e., Security Technical Implementation Guides [STIGS]).
• Monitoring OIS security posture, documenting raw findings in a quick look report, for customer notification. Create and maintain system Plan of Action and Milestones (POA&Ms) of open vulnerabilities and applied mitigations utilizing Department of Defense Enterprise Mission Assurance Support Service (eMASS) tool.
• Supporting the development and documentation of risk assessment results and recommendations using identified threats, applicable vulnerabilities, and likelihood of occurrence within context of risk tolerances
• Monitor all database and application software used in OIS for version change control and nearing/exceeding last date allowed in the Department of Navy Application Database Management System (DADMS).
• Coordinating/interfacing with OIS Technical Team, Defense Information Systems Agency (DISA), IA Staff, and Fleet Cyber Command to document, review, revise, and submit changes related to Ports, Protocols, and Services Management (PPSM), Access Control Lists (ACLs), and Whitelists. This support includes preparing and submitting the registration forms for new requirements.
• Supporting DOD IT Portfolio Repository-DON (DITPR-DON) to support the annual review.
• Providing recommendations for corrective actions and mitigation strategies.
• Producing security risk assessment briefs and reports for delivery to stakeholders and senior management.
• Support the DevSecOps team in implementing Cyber Security requirements to achieve and maintain accreditation and authority to operate within specified timelines.
• Interpret OS, web server, and database scans to facilitate resolving security findings with the DevSecOps team and external teams
• Conducting security monitoring through the use of VRAM (Vulnerability Remediation Asset Manager), and applying mitigation techniques to reduce and remediate vulnerabilities
• Coordinating / troubleshooting with afloat platforms to assist in identification and remediation of cybersecurity vulnerabilities within the Program of Record (POR) area of responsibility
• Ensure systems are scanned, patched, and compliant with DoD policy
• Troubleshoot Windows and RHEL security policies
• Support with configurations including CloudWatch logs, registering systems, reporting and manage findings
• Assess systems to determine applicable IA controls based on design, architecture, and data
• Attend risk management and system meetings to provide status updates and take action items
• Other duties as required

• Must have DOD Secret level clearance to start (T3 background investigation)
• Certification Requirement: Directive 8570.1/8140 - IAM-1: Security+
• Bachelor's degree with a minimum of 6 years of relevant experience.
• Experience performing risk assessments and audits.
• Experience using DoD approved tools (ACAS, SCAP-compliant scanners, eMASS, etc.).
• Knowledge of the overall Risk Management Framework and NIST compliance as a security professional.
• Experience presenting to clients or management to present technical and non-technical information to allow key personnel to make informed decisions.
• Experience successfully advising stakeholders through the ATO process.
• Familiarity with information security documents, government orders, notices, and guidelines.
• Experience documenting and maintaining systems running in AWS GovCloud (DoD preferred)
• Ability to work independently to create and update Security Plans, Contingency Plans, and other security documents
• Solid understanding in DoD Cyber Security policies and requirements

• Bachelor's degree in Engineering, IT, Computer Science, or related field or equivalent
• 10 years' experience in ISSO capacity
• Experience supporting DoD (Navy preferred) enterprise application in the AWS
• GovCloud (up to IL 6) in a security capacity
• CISSP or equivalent certification
• AWS Certified Security certification

The estimated annual salary range for this position is $100,000.00 - $160,000.00/year. Actual compensation will be determined based on factors such as experience, qualifications, skills, geographic location, contract requirements, and business needs.

Entarian offers a comprehensive benefits package to eligible employees, including medical, dental, and vision insurance; life, AD&D, and disability insurance; paid time off and 11 company holidays; 401(k) retirement plan with company matching; and additional employee benefits and wellness resources. Benefits and compensation are subject to applicable eligibility requirements and the terms of Entarian's plans and policies.

About Entarian

Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Built on a legacy of excellence dating back to 1993, Entarian represents the evolution of a fully diversified engineering and federal technology leader.

From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that strengthen national resilience and operational effectiveness. We don't just support modernization; we define it.

Ready to make an impact? Explore opportunities and apply directly through our Entarian Careers Portal: https://entarian.com/careers/

Questions and/or Referrals: careers@entarian.com

Equal Opportunity Employer

Entarian is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, gender identity, sexual orientation, or protected veteran status.

As a covered federal contractor, Entarian is committed to affirmative action and equal employment opportunity for individuals with disabilities under Section 503 of the Rehabilitation Act of 1973 and protected veterans under the Vietnam Era Veterans' Readjustment Assistance Act (VEVRAA).

Entarian is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and employment process.