**Date Posted:** 2026-02-09 **Country:** United States of America **Location:** US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 **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 Type:** DoD Clearance: Secret **Security Clearance Status:** Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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 Principal Systems Engineer 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! As a Principal Systems Engineer you will be responsible for technical rigor of requirements documents, coordination across teams, sharing program process knowledge, mentoring engineers, and working with the technical and program leads execute program tasks. Responsibilities include, but are not limited to, requirements management, providing SE oversight during integration and test activities. In this role, you will have the opportunity to work on an effectors project pertinent to the systems lifecycle. This role is 100% on-site at our Tucson, AZ campus with the possibility of occasional travel. **What You Will Do** + Update, maintain, and improve requirements and requirements documentation for development and production efforts + Perform and execute integration, verification and testing and/or provide Systems Engineering support during the test. + Support system performance analysis, and Integration and Test + Model the system and the system development and production processes using Cameo + Participate in Failure Investigations + Conduct Trade Studies and present results to customers + Perform test planning to develop and implement test plans, and procedures. + Prepare integration and verification documentation in both simulated and real-world environments + Create and present technical data for design reviews and in preparation for test events. + Troubleshoot and analyze hardware, software, and system issues through detailed data analysis and debugging. + Conduct statistical and numerical analysis of test data to ensure optimal system performance and to verify requirements. + Support mission execution at various locations including local RTX facilities, test sites, vendor facilities, and customer locations **Qualifications You Must Have** + Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of relevant experience + Experience in Systems Engineering and/or Systems Integration and test + Ability to obtain Interim Secret U.S. government issued security clearance is required prior to start date. **Qualifications We Prefer** + Masters or PhD in Engineering, Math or Physics + Experience presenting technical and analytical presentations + Experience evaluating and mitigating technical risks + Experience using Agile framework development methods / processes + Experience with Agile, Model-Based Systems Engineering (MBSE), and/or Digital Engineering + A self-starter who can take on task with limited guidance + Customer focus and collaboration skills + Experience with performance analysis + Experience with DOORS and/or cPDM + Ability to perform trade studies to optimize system performance + Understanding of Systems Engineering Product Development Cycle + Familiarity with system safety, reliability, and configuration management + Experience working in an integration lab, test facility, or in the field supporting integration and/or verification. + Experience evaluating systems using simulated environments + Experience generating technical documentation such as trade studies, test plans, procedures or technical reports. + Experience in integration with test equipment, telemetry data analysis tools, and missile systems host platforms **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 **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 a security clearance. **DCSA Consolidated Adjudication Services (DCSA CAS)** , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm + This position is an onsite role – Tucson, AZ: https://careers.rtx.com/global/en/raytheon-tucson,-az-location + We Are RTX **_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 (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.