Cyber Systems Administrator – Control Systems Cybersecurity

Agile Defense • Columbus, OH

3d • Onsite

About The Position

We’re looking for a Cyber Systems Administrator (Lead) to be the on-site cybersecurity authority supporting a federal customer’s building and facility control systems. These systems power the environment that keeps the installation running — everything from building automation to utilities and metering — and your work helps ensure they remain secure, resilient, and audit-ready.
This position is both hands-on and leadership focused. You will be the local cybersecurity presence, overseeing day-to-day security operations while also serving as the primary connection between the on-site operations team and the government’s broader cybersecurity organization, which works from a separate location. You’ll translate local technical realities into clear updates for remote stakeholders, align the site with enterprise cyber standards, and guide the customer toward maintaining their Authority to Operate (ATO).
Lead and mentor a small team responsible for RMF documentation, security controls, and compliance activities.

Requirements

• Must meet DoD 8140.03 certification requirements for this role (IAM Level I), such as Security+ CE.
• Role-based computing environment certification (to be obtained before privileged access within 180 days of first day).
• Hands-on cybersecurity or systems administration experience in a federal, DoD, or similarly complex environment.
• Experience supporting the RMF process end-to-end.
• Experience leading or mentoring cybersecurity staff.
• Working knowledge of federal cybersecurity frameworks (FIPS 199/200, NIST 800-53, NIST 800-82, CNSSI 1253).
• Experience with DoD cybersecurity tools for vulnerability scanning, compliance checking, and endpoint security.
• Strong vulnerability management capabilities — scanning, triage, remediation, tracking.
• Clear and audit-ready technical writing.
• Ability to coordinate with program managers, remote cybersecurity stakeholders, security officers, engineers, and vendors.

Nice To Haves

• DoD 8140 IAM Level II certification.
• Experience with OT/ICS/SCADA or facility-related control systems (e.g., building automation, 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.

Responsibilities

• Lead daily cybersecurity operations for facility and control systems — patching, hardening, monitoring, and compliance.
• Supervise and mentor two RMF Specialists, reviewing work and developing their technical capabilities
• Act as the on-site liaison between the facility team, OEM vendors, and the government’s remote cybersecurity team, ensuring alignment with enterprise-level security requirements.
• Run vulnerability scans, analyze results, and drive remediation to 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 a 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 the cyber phase-in and transition efforts during ramp-up, ensuring smooth collaboration with the broader government cyber organization.

Benefits

• Employees of Agile Defense are our number one priority, and the importance we place on our culture here is fundamental. Our culture is alive and evolving, but it always stays true to its roots. Here, you are valued as a family member, and we believe that we can accomplish great things together. Agile Defense has been highly successful in the past few years due to our employees and the culture we create together. What makes us Agile? We call it the 6Hs, the values that define our culture and guide everything we do. Together, these values infuse vibrancy, integrity, and a tireless work ethic into advancing the most important national security and critical civilian missions. It's how we show up every day. It's who we are. Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do. Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated. Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support. Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task. Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges. Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior