Job Description

General information

Requisition #
R65103
Locations
USA-VA-Stafford
Posting Date
12/30/2025
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 is seeking 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:

• Lead MBSE-related technical and strategy discussions resulting in timely delivery of Model artifacts for Program decision-making.
• Develop Digital Engineering Models and Marine Corps compliant systems engineering artifacts.
• 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 6 years of Digital Engineering or Model-Based Systems Engineering experience.
• Advanced knowledge of Cameo System of Systems Architect or other MBSE tools
• Familiarity with one or more of the following: UML, SysML, UAF, UPDM, BPMN, IDEF
• Ability to think critically, problem-solve, and influence others to achieve desired results
  for the project.
• Capable of working collaboratively on multiple projects simultaneously.
• Demonstrated ability to write technical documentation, and good communication,
  interpersonal, organizational and analytical skills.
• Use of Microsoft Office Suite (PowerPoint, Excel, Word and Project)

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
• OMG-Certified SysML Professional (OCSMP) SysML Model Builder Certification
  (Fundamental, Intermediate, or Advanced)

Clearance Requirements:

• Must have an 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.

MANTECH International Corporation 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.