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# Model Based Systems Engineer

- **Company:** Science Applications International Corporation
- **Location:** Chantilly, VA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $180,001.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Automation of Marketing, Requirements Management, Requirements Traceability, Systems Modeling Language, Systems Architecture, Information Technology, DODAF
- **Published:** October 22, 2026
- **Apply:** https://www.dice.com/job-detail/e00c81e8-dfe6-4ae6-aaca-b1b199be4940

## About the Role

Required Education and Experience:

 * Bachelor's degree in Engineering, Computer Science, Mathematics, Physics, or a related STEM discipline and 9+ years of relevant experience; Master's degree and 7+ years; or PhD/JD and 4+ years. Additional relevant experience may be considered in lieu of a degree.
 * Active Top Secret/SCI clearance with Polygraph.
 * Demonstrated expertise in Model-Based Systems Engineering (MBSE), Digital Engineering, SysML, and model-centric approaches supporting architecture development, requirements management, and technical baseline control.
 * Experience applying systems engineering principles to the development, integration, and modernization of complex national security, intelligence, space, or defense systems.
 * Experience applying UAF, DoDAF, or comparable architecture frameworks to support system architecture, interface definition, requirements traceability, and engineering decision-making.
 * Experience supporting enterprise and system-of-systems engineering activities, including CONOPS development, cross-program integration, and lifecycle engineering.
 * Knowledge of government acquisition processes, Agile development practices, and software-intensive system delivery within mission-critical environments.
 * Ability to collaborate effectively with government, contractor, FFRDC, and mission partner organizations while providing technical leadership and engineering guidance.
 * Strong written, verbal, analytical, and briefing skills, with experience communicating technical recommendations to senior government stakeholders.
 * Experience supporting NRO, NGA, IC, DoD, or other classified space and intelligence programs preferred.

## Description

* Apply MBSE, Digital Engineering, and systems engineering best practices to support the development and modernization of mission-critical ground systems.
 * Develop and refine mission architectures, requirements, CONOPS, and engineering models that support informed technical and acquisition decisions.
 * Create and maintain digital models supporting architecture development, requirements traceability, technical analysis, and lifecycle management.
 * Champion model-centric engineering approaches to improve engineering rigor, collaboration, and reuse across the enterprise.
 * Support the development of acquisition artifacts, including SOWs, RFPs, technical requirements, and proposal evaluations.
 * Collaborate across government, SETA, FFRDC, and contractor organizations to define future mission needs and technical capabilities.
 * Facilitate technical exchanges, architecture reviews, and stakeholder engagements to drive alignment and informed decision-making.
 * Identify and manage technical, programmatic, and acquisition dependencies, risks, and integration challenges across multiple programs.