Lead Principal Systems Engineer (MBSE)

Date Posted:

2026-11-11



Country:

United States of America



Location:

US-IN-INDIANAPOLIS-206 ~ 3939 Priority Way S Dr ~ PRIORITY BLDG 6



Position Role Type:

Onsite



U.S. Citizen, U.S. Person, or Immigration Status Requirements:

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



Security Clearance Type:

DoD Clearance: Secret



Security Clearance Status:

Active and existing security clearance required after day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

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.

Qualifications You Must Have:

• 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

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation

• Relocation Eligible – relocation assistance available for this position

Learn More & Apply Now!

• Please consider the following role type definition as you apply for this role.

• Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms