Senior Model-Based Systems Engineer

• Build and maintain SysML models using Dassault Systemes Cameo Systems Modeler/MagicDraw and Teamwork Cloud.
• Translate engineering inputs-including requirements, physical parameters, interfaces, behaviors, and constraints-into standardized system models.
• Develop and maintain SysML block definition, internal block, activity, state machine, requirement, and parametric diagrams.
• Apply sound systems engineering and modeling principles to ensure the Systems Engineering Model (SEM) remains accurate, consistent, and useful as the program's authoritative technical baseline.
• Work within established MBSE modeling standards, architecture patterns, package structures, and configuration-management practices.
• Use JIRA-driven Developmental Change Management (DCM) processes to manage model updates, reviews, pull requests, and configuration changes.
• Collaborate with Digital Environment Leads and engineering teams to connect model elements with external engineering tools and applications, including CATIA, PLM, and simulation/analysis environments.
• Help establish and maintain digital threads between requirements, architecture, design, analysis, verification, validation, and sustainment data.
• Participate in Agile engineering sprints alongside Lead Systems Engineers, technical specialists, government stakeholders, and industry partners.
• Support continuous verification and validation (VV&A) by developing and linking digital test cases in Cameo to system requirements and model elements.
• Develop SysML parametric models that incorporate reliability, maintainability, and supportability calculations and enable automated lifecycle metrics such as MTBF and maintenance man-hours (MMH).
• Prepare and present models during technical working groups, engineering reviews, and digital design reviews.
• Maintain model configuration integrity within Teamwork Cloud, including model access, merges, branching, and conflict resolution.
• Help evolve the program's Digital Engineering Environment and modeling practices as mission and engineering needs mature.
• Work in a Linux-based environment as part of a collaborative Agile engineering team.

• Top Secret/SCI eligible security clearance.
• Master's degree in a technical or scientific discipline; or
• Bachelor's degree in a technical or scientific discipline from an accredited institution with an additional four years of recent, relevant experience.
• 4 years of recent, relevant systems engineering experience involving Model-Based Engineering, Model-Based Systems Engineering, or Digital Engineering.
• Hands-on experience with Dassault Systemes Cameo Systems Modeler/MagicDraw and Teamwork Cloud.
• Strong understanding of SysML syntax, modeling concepts, and systems architecture/ontology development.
• Experience working in an Agile/Scrum/Kanban environment and familiarity with tools such as JIRA and Confluence.
• A solid foundation in one or more engineering disciplines, such as aerospace, mechanical, electrical, software, or systems engineering.
• Ability to translate real-world engineering requirements, interfaces, behaviors, and constraints into well-structured digital models.
• Strong written and verbal communication skills and the ability to collaborate effectively across multidisciplinary engineering teams.
• U.S. citizenship.

• Experience supporting U.S. Navy, Department of Defense, or aerospace/defense acquisition programs.
• Experience working in a Digital Engineering Environment (DEE) or model-centric acquisition environment.
• Experience developing or maintaining a Systems Engineering Model (SEM) or Technical Baseline Framework (TBF).
• Experience integrating MBSE models with PLM, CAD, simulation, analysis, or other engineering applications.
• Experience with requirements traceability, digital verification and validation, and digital test case development.
• Experience developing SysML parametric models for reliability, maintainability, logistics, or lifecycle analysis.
• Familiarity with configuration management, model governance, model reviews, and collaborative model development.
• Experience supporting complex aircraft or rotorcraft systems.

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com