USMC Cybersecurity Architect; Part Time

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a Cybersecurity Architect for the Facilities Related Control Systems (FRCS) Support Services contract. This project will provide knowledge, training, and support to assist the U.S. Marine Corps Public Works Department in the areas of FRCS, Cybersecurity, Assessment and Authorization (A&A), Authority To Operate/Authority to Connect (ATO/ATC) package upkeep and maintenance, USMC Cloud and Cloud‑Based A&A support, and data center support/administration for the FRCS virtualized environment, servers, and associated applications.

This is a part‑time, on‐site position at Marine Corps Base (MCB) Camp Lejeune, Marine Corps Air Station (MCAS) New River, and satellite locations near Camp Lejeune, working 20 hours per week, Monday through Friday, within normal business hours (7:00 am to 5:00 pm).

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.

The Cybersecurity Architect will be a key personnel position for the Facilities Related Control Systems (FRCS) Support Services contract. This position leads cybersecurity architecture accreditation, compliance, and risk management for FRCS and IC/OT systems supporting Marine Corps. This position is contingent upon contract award.

• Lead the cybersecurity architecture, Risk Management Framework (RMF), and Authority to Operate/Authority to Connect (ATO/ATC) processes for FRCS and IC/OT environments, ensuring compliance with USMC cybersecurity requirements.
• Develop, implement, and maintain cybersecurity policies, system security plans, security architectures, and technical guidance aligned with NIST SP 800-53, DoDI 8510.01, CNSSI 1253, DFIA, and Marine Corps accreditation standards.
• Conduct security assessments, vulnerability and risk analyses, compliance validations, and DISA STIG reviews while developing and managing POA&Ms to remediate identified cybersecurity findings.
• Coordinate cybersecurity engineering activities with systems administrators, network engineers, and control systems specialists to integrate secure architecture, support system accreditation, and protect mission‑critical FRCS infrastructure.
• Prepare white papers, technical briefs, training materials, standard operating procedures, and executive‑level documentation that communicate cybersecurity strategies, compliance requirements, and technical solutions for IC/OT environments.
• Advise Government stakeholders on cybersecurity best practices, emerging threats, secure system design, and continuous monitoring strategies to strengthen the security, resilience, and compliance of Marine Corps FRCS operations.

• A current Secret clearance is required.
• Authorization to permanently work in the United States without sponsorship.
• Oral and written English fluency.
• State’s Driver’s License.
• Master's Degree or 20 years C&A/A&A experience.
• Experience with USMC accreditations (ATO/ATC) for large architectures.
• Experience with writing custom Cybersecurity policies for IC/OT (operational technology) devices and systems.
• Expert in the USMC A&A process to include MCCAST 2.0, RMF, Defense‑in‑Depth Functional Implementation Architecture (DFIA), and Committee on National Security Systems Instruction (CNSSI) 1253.
• CNSSI 4011, 4012, 4015, 4016A (Required).
• Experience creating/managing Plan of Action and Milestones (POAM).
• Experience with Defense Information Systems Agency (DISA) Security Technical Implementation Guide (STIG).
• Experience interpreting/implementing standards and policies in accordance with National Institute of Standards (NIST) 800-53/DoDI 8510.01.
• Experienc…