General information Requisition # R69831 Locations USA-VA-Stafford Posting Date 08/06/2026 Security Clearance Required Secret Remote Type Onsite Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH! MANTECH seeks a motivated, career and customer-oriented Model-Based Systems Engineer to join our USMC contract out of Quantico, VA. MANTECH is responsible for assisting our government customer and ensuring that material solutions developed or acquired by Marine Corps Systems Command (MCSC) are system engineered, integrated, interoperable, and certified to provide the warfighter with equipment required to accomplish their mission. To do that, MANTECH assists our customer to conduct the detailed systems engineering analysis, establishes technical policies and guidance across the Command, and manage the technical investigation and distributed planning required to deliver world class Marine Air Ground Task Force (MAGTF) systems capabilities to the warfighter. Responsibilities include but are not limited to: Support MBSE-related technical and strategy discussions. Develop Digital Engineering Models and Marine Corps compliant systems engineering artifacts with Senior Engineer oversight. Participate in multiple systems engineering projects and accurately represent stakeholder interests Consolidate and report project status updates and issues. Provide technical support to MBSE development projects, including communicating Systems Engineering Technical Review (SETR) events. Prepare and maintain technical systems or program documentation, integrated master schedules, comment resolution matrices, presentations, and training material. Plan, coordinate, and participate in MBSE meetings and events

Minimum Qualifications:

Bachelor's Degree in a Scientific, Engineering, or Technical area and at least 4 years of Digital Engineering or Model-Based Systems Engineering experience. Additional 2 years of experience may be substituted in lieu of degree. Ability to learn Cameo System of Systems Architect or other MBSE tools Familiarity with one or more of the following: UML, Sys

ML, UAF, UPDM, BPMN, IDEF

Superior written and oral communication skills. Ability to think critically, problem-solve, and influence others to achieve desired results for the project. Capable of working collaboratively on multiple projects simultaneously

Preferred Qualifications:

Have knowledge of Marine Corps Systems Engineering Processes, including the relationship between MCSC and

DC, CD&I.

Familiarity with the MCSC Acquisition Guidebook. Knowledge of Marine Corps concepts, practices, procedures, systems and interfaces

Clearance Requirements:

Must have a current / active DoD Secret Clearance.

Physical Requirements:

The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication. The projected compensation range for this position is $77,200.00-$128,800.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections. MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.