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# Lead Principal Systems Engineer (MBSE)

- **Company:** RTX
- **Location:** Indianapolis, IN, United States
- **Experience:** Expert
- **Salary:** $107,500 - $204,500
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Microsoft Azure, Systems Analysis, Performance Tuning, Requirements Traceability, Software Engineering, Software Requirements Analysis, Verification and Validation (Software), Systems Modeling Language, Systems Architecture, Modeling and Simulation, Data Analytics
- **Published:** November 12, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9308341/lead-principal-systems-engineer-mbse

## About the Role

* Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) discipline and a minimum of 8 years of prior relevant experience applying Model-Based Systems Engineering (MBSE) principles and methodologies on large, complex defense, aerospace, or mission-critical systems.

 * Systems Engineering "V" lifecycle, from concept and requirements through integration, verification, validation, and system qualification

 * Experience developing and executing system qualification test plans and procedures in complex, multi-disciplinary environments

 * The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer:

 * V-22 platform/system

 * Software lifecycle, including requirements, design, implementation, integration, test, and management

 * Model Base Systems engineering (MBSE)

 * CAMEO, SYSML and DOORs

 * Agile development environment using Azure DevOps or equivalent

## Description

Raytheon is seeking a Lead Principal Systems Engineer (MBSE) to expand our Systems Engineering & Test Capabilities (SETC). This position will work to develop solutions to solve customer needs by providing customized engineering services and products for unique customer missions. This is an onsite role located in Indianapolis, Indiana.

What You Will Do

 * Lead the development, implementation, and execution of Model-Based Systems Engineering (MBSE) methodologies across complex programs, ensuring traceability from mission needs and customer requirements through system verification and validation.

 * Develop and maintain system architectures, requirements, interfaces, behaviors, and verification strategies using MBSE tools and digital engineering frameworks to support the system lifecycle.

 * Lead system design, architecture analyses, modeling and simulation activities, and technical trade studies to evaluate alternatives and optimize system performance, cost, schedule, and risk.

 * Define and manage the technical baseline through integrated system models, ensuring consistency and alignment across hardware, software, cybersecurity, and networked subsystems.

 * Coordinate and provide technical leadership to cross-functional engineering teams to develop innovative solutions that satisfy customer objectives, mission planning requirements, and program commitments.

 * Lead the integration of complex software and hardware subsystems, leveraging model-based approaches to assess interoperability, performance, and system behavior.

 * Ensure Statement of Work (SOW) compliance through development, documentation, planning, and execution of system verification and validation activities, with full requirements traceability maintained within MBSE environments.

 * Champion a structured, data-driven approach to systems engineering, utilizing digital models and quantitative analyses to identify risks, resolve technical challenges, and support critical program decisions.

 * Drive the successful execution of program milestones and technical deliverables

 * Lead the development, analysis, and management of system requirements, interfaces, architectures, and technical baselines across complex programs.

 * Direct system design activities, including requirements decomposition, modeling and simulation, trade studies, and performance analyses to ensure mission and with minimal oversight while serving as a key technical authority for system engineering activities.

 * Establish, tailor, and improve MBSE, Digital Engineering, and Systems Engineering processes, standards, and best practices across programs and organizations.

 * Mentor and provide technical leadership to systems engineers and multidisciplinary teams, guiding model development, systems analysis, architecture definition, and engineering rigor.

 * Serve as a trusted technical advisor to program leadership and customers, presenting model-based analyses, architecture recommendations, technical risks, and mitigation strategies to support strategic decision-making.