Cyber Systems Administrator/Control Systems Cybersecurity

NEMEAN SOLUTIONS LLC; Columbus (OH); On-site; USD 110,000 - 160,000; Full time

Job summary

Cybersecurity Jobs is seeking an on-site Lead Cyber Systems Administrator in Columbus, OH to oversee OT cybersecurity operations for facility and control systems. You will coordinate with OEM vendors and a remote government cybersecurity team, drive RMF compliance, and lead vulnerability management activities.

You will mentor two RMF Specialists, develop team capabilities, and ensure audit readiness during ramp-up and transition activities.

Qualifications

• Hands-on RMF experience from initiation to assessment and authorization support.
• Experience mentoring cybersecurity personnel and coordinating with onsite/offsite teams.
• Ability to produce audit-ready security artifacts and documentation.

Responsibilities

• Lead daily cybersecurity operations for facility and control systems, including patching, hardening, monitoring, and compliance.
• Supervise and mentor two RMF Specialists, including work reviews and capability development.
• Function as on-site liaison between facility team, OEM vendors, and remote government cybersecurity team.
• Run vulnerability scans, analyze findings, and drive remediation to completion.
• Oversee RMF documentation and security artifacts for audit readiness.
• Support system categorization and risk assessment for off-site stakeholders.
• Build and maintain an accurate inventory of systems, software, and documentation.
• Enforce cybersecurity best practices and separation of duties across the team.
• Represent on-site readiness during customer meetings, workshops, and reviews.
• Lead phase-in and transition activities during ramp-up with the broader government cyber organization.

Skills

RMF operations

Mentoring staff

Stakeholder coordination

Technical writing

Vulnerability management

Education

Bachelor’s degree

Tools

Vulnerability scanning tools

Linux administration

Job description

The role serves as an on-site cybersecurity authority for federal facility-related control systems, including building automation, utility, and metering environments. The position leads daily OT cybersecurity operations, supports RMF compliance and ATO efforts, and coordinates with a remote government cybersecurity organization to maintain audit readiness.

Role Overview

Lead Cyber Systems Administrator responsible for overseeing cybersecurity operations within OT environments. Serve as the primary point of contact on-site for alignment between the facility team, OEM vendors, and a remote government cybersecurity organization, with a focus on compliance, ATO support, and program execution during ramp-up and transition activities.

Key Responsibilities

• Lead daily cybersecurity operations for facility and control systems, including patching, hardening, monitoring, and compliance.
• Supervise and mentor two RMF Specialists, including work review and development of technical capabilities.
• Function as the on-site liaison between the facility team, OEM vendors, and the government’s remote cybersecurity team to ensure alignment with enterprise security requirements.
• Run vulnerability scans, analyze findings, and drive remediation through completion.
• Oversee creation of RMF documentation and security artifacts, ensuring accuracy and audit-readiness.
• Support system categorization and risk assessment by translating local technical information for stakeholders working off-site.
• Build and maintain an accurate, reliable inventory of systems, software, and documentation.
• Enforce cybersecurity best practices and separation of duties across the team.
• Represent on-site readiness during recurring customer meetings, workshops, and program reviews.
• Lead cyber phase-in and transition activities during ramp-up, ensuring smooth collaboration with the broader government cyber organization.

Required Qualifications

• Bachelor’s degree preferred; equivalent experience, technical training, military service, or relevant industry certifications will be considered.
• Hands-on cybersecurity or systems administration experience in a federal, DoD, or similarly complex technical environment.
• Experience supporting the Risk Management Framework (RMF) process, from initiation through assessment, authorization support, and ongoing monitoring.
• Experience leading or mentoring cybersecurity personnel.
• Working knowledge of federal cybersecurity frameworks, including FIPS 199/200, NIST SP 800-53, NIST SP 800-82, and CNSSI 1253.
• Must meet DoD 8140.03 certification requirements for the assigned role (identified as IAM Level I), such as CompTIA Security+ CE.
• Must obtain the applicable role-based computing environment certification before privileged access, within 180 days of the first day of employment.
• Experience using DoD cybersecurity tools for vulnerability scanning, compliance checking, and endpoint security.
• Strong vulnerability management skills, including scanning, triage, remediation, and tracking.
• Ability to produce clear, accurate, and audit-ready technical documentation.
• Ability to coordinate with program managers, security personnel, engineers, vendors, and remote cybersecurity stakeholders.

Technologies

• Risk Management Framework (RMF)
• FIPS 199/200
• NIST SP 800-53
• NIST SP 800-82
• CNSSI 1253
• DoD 8140.03
• IAM Level I
• CompTIA Security+ CE
• DoD cybersecurity tools
• Privileged access
• Linux administration

Preferred Skills

• DoD 8140 IAM Level II certification.
• Experience with OT/ICS/SCADA or facility-related control systems, such as building automation and advanced metering.
• Knowledge of the Purdue Enterprise Reference Architecture.
• Experience supporting ATO or ATC efforts.
• Familiarity with FedRAMP and Zero Trust principles.
• Linux administration experience.
• Prior DLA customer experience.

Security Clearance

• Must be a US Citizen with the ability to obtain and maintain a Secret security clearance.

Location

Columbus, OH (onsite)