Date Posted: 2025 10 22 Country: United States of America Location: AZ888: RMS AP Bldg 928 1151 East Hermans Road Building 928, Tucson, AZ, 85706 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: Secret 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. The Systems Engineering and Test Center (SETC) organization is currently hiring a Sr. Principal Systems Engineer Systems Engineering Subject Matter Expert (SME) to join our Tucson, AZ location. SETC is an exciting and challenging environment where you will have the opportunity to design, develop and partner with multi disciplines to shape innovative solutions for our customers. Join our organization and experience the Systems V engineering life cycle while interfacing with a variety of engineering disciplines, subject matter experts, chief engineers, chief technologists, the customer, and so many more to ensure we design, integrate, and strengthen our systems to work the first time and every time for our warfighters! The Sr. Principal Systems Engineer Systems Engineering Subject Matter Expert (SME) will take a leading role in interfacing with the customer to develop CONOPS, system architecture, system requirements and manage qualification, verification and validation. You will guide and lead the functional / physical analysis, requirements allocation, and trade studies for system modifications. You will plan the Systems approach to engineering testing, integration and flight testing, production, system deployment, and post deployment support across the product lifecycle. The Sr. Principal Systems Engineer Systems Engineering Subject Matter Expert (SME) role requires a high level of technical proficiency in all aspects of the systems engineering lifecycle with a focus on test and production test environments. What You Will do: Analyze and study complex system requirements Perform functional analysis, timeline analysis, cost estimation, trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications Support failure investigations and root cause analysis to issues identified during component, section level or system level tests Apply Systems Engineering best practices and engineering rigor to requirements and/or design changes of the system at all levels of systems decomposition Develop, review and/or update Systems Engineering artifacts including block diagrams, logic flow charts and/or activity diagrams to document system behaviors Support the identification of near term and future system improvements and identify technical insertion points in the system lifecycle Provide coaching and mentoring to junior level team members on all aspects of Systems Engineering Qualifications You Must Have Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 10 years of prior relevant experience Experience in Systems Engineering, Test Systems and Environments, System Architecture, and/or Design Experience working on a cross functional team of Systems Engineers and multi discipline engineers Experience mentoring engineers Experience on a Missile and/or Defense Program Qualifications We Prefer Post Graduate degree in in Engineering, Computer Science, Math or Physics Understanding of Systems Engineering Product Development Cycle Prior work experience giving technical briefs or presentations with strong verbal and written communication skills Interfacing with customers Developing & Refining CONOPS, System Architecture, System Requirement, and Requirements Verification Strategies & Plans Performing Functional & Physical Analyses and Allocation Creating & Maintaining Specifications Subassembly and System Integration & Verification 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 is 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. This position requires onsite work in Tucson, AZ: https://careers.rtx.com/global/en/raytheon tucson, az location 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 124,000 USD 250,000 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 to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry leading businesses â Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.