**Date Posted:** 2025-09-02 **Country:** United States of America **Location:** CO112: Buckley AFB 18500 East 6th Ave 18500 East 6th Avenue Buckley AFB, Aurora, CO, 80011 USA **Position Role Type:** Onsite **U.S. Citizen, U.S. Person, or Immigration Status Requirements:** Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with CI Poly - Current At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon Technologies is seeking a Principal Systems Engineer (MBSE) to provide enterprise-wide systems engineering and integration support within the Intelligence Community. The ideal candidate will apply Model-Based Systems Engineering (MBSE) and Digital Engineering practices to define system architectures, manage interfaces, and ensure traceability of requirements to technical solutions. This role involves developing and maintaining system models using tools such as Cameo Systems Modeler, as well as utilizing computer-based simulations to analyze and optimize the performance of complex systems. **Location:** Aurora, CO, Las Cruces, NM or near Springfield, VA **What You Will Do** + Leverage Cameo Systems/Architecture Modeler to create, analyze, and maintain detailed system models, utilizing SysML, UML, and other relevant modeling languages to support system architecture development, design validation, and system integration activities. + Map and trace system requirements to corresponding system functions, processes, and Concept of Operations (CONOPs), ensuring a clear and structured flow from requirements to architecture, and conducting impact analysis on system performance. + Maintain version control and apply configuration management processes to incoming model baseline changes, ensuring integrity and traceability. Conduct validation and updates on legacy model captures to ensure consistency with evolving system requirements and architecture. + Establish and integrate Digital Engineering (DE) methods to advance the transition to Model-Based Systems Engineering (MBSE), including the development and adoption of new processes that enhance enterprise-wide systems engineering practices. + Develops and utilizes computer models to analyze and optimize the performance of complex systems. Work with a variety of software and programming languages to simulate real-world scenarios and predict system behavior, often collaborating with other engineers and stakeholders to translate those predictions into actionable improvements. + Communicate effectively with program leadership, government stakeholders, SETA personnel, and other contractors to guide operational and engineering activities. + Manage system integration projects and deliver reliable data that supports informed customer decisions regarding installations, modifications, and upgrades. **Qualifications You Must Have** + Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 5 years of prior engineering experience or equivalent experience. + Experience applying Model-Based Systems Engineering (MBSE) principles, including system modeling with Cameo, or equivalent tools. + Experience with Digital Engineering practices and toolchains to enhance design, integration, and test workflows. + Experience with high level programming languages (e.g. Python). + Experience with project management. + Experience collaborating with internal and external customers in a team environment (Government, Military, SETA, and Contractor). + **An active and transferable TS/SCI CI Poly U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for the required security clearance.** **Qualifications We Prefer** + Experience with systems installation, integration, and test activities. + Experience with relevant programming languages (Python, C++, etc.) + Experience with Request for Change (RFC) impact reviews and assessment processes. + Experience with customer NSIS requirements and rapid delivery methods. + Experience in customer relationships and stakeholder engagement. + Experience working across contract and location boundaries + Experience with Atlassian JIRA, Confluence, and collaborative engineering tools. + Experience conveying complex technical issues through oral and written communication. **What We Offer** + Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. + Not Relocation Eligible – Relocation assistance not available **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. The salary range for this role is 82,000 USD - 164,000 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 (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.