RMF Cybersecurity Engineer for DoD – ATO Specialist

Nemean Solutions, LLC; Columbus (OH); On-site; USD 110,000 - 140,000; Full time

Job summary

Nemean Solutions, LLC in the United States is seeking a Cybersecurity Engineer / RMF Specialist to document, assess, and strengthen security posture of building control systems for a federal customer. The role emphasizes creating defensible artifacts and maintaining an Authority to Operate (ATO) through accurate security documentation and traceable POA&Ms.

The candidate will review vulnerability findings, coordinate with system owners and a remote cybersecurity team, and contribute to monthly

Qualifications

• Bachelor's degree or equivalent experience considered.
• DoD 8140 IAM Level I certification required or in progress.
• Experience producing security artifacts reviewed by government officials.
• Hands-on RMF process support in federal or DoD environments.
• Familiarity with NIST SP 800-53/82 and related controls.
• Ability to translate technical input into defensible security docs.

Responsibilities

• Develop and maintain RMF documentation and security artifacts.
• Collect and organize technical information into audit-ready deliverables.
• Support system categorization and risk assessment activities.
• Review vulnerability scans, document findings, and track POA&Ms.
• Assist with STIGs, security control checklists, and compliance status.
• Maintain inventories of in-scope hardware/software/docs.
• Coordinate with remote cybersecurity team and stakeholders.
• Contribute to monthly reporting and customer deliverables.
• Support transition activities and documentation handover.

Skills

RMF documentation

Security documentation

Vulnerability assessment

Stakeholder coordination

Federal contracting

Risk management

Education

Bachelor’s degree preferred

DoD 8140 IAM Level I

Security+ CE

Tools

ACAS

STIG

eMASS

CNSSI 1253

NIST SP 800-53

NIST SP 800-82

Job description

Nemean Solutions, LLC in the United States is seeking a Cybersecurity Engineer / RMF Specialist to document, assess, and strengthen security posture of building control systems for a federal customer. The role emphasizes creating defensible artifacts and maintaining an Authority to Operate (ATO) through accurate security documentation and traceable POA&Ms.

The candidate will review vulnerability findings, coordinate with system owners and a remote cybersecurity team, and contribute to monthly