Principal Systems Engineer
Date Posted: Making sure you fit the guidelines as an applicant for this role is essential, please read the below carefully. 2026-07-16 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 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. 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. Systems Engineering and Test Capabilities (SE&TC) is an exciting and challenging environment where you will have the opportunity to design, develop and partner with multiple 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! SE&TC based in Tucson, Arizona supports it all, from the seabed to space, including Ship Launched Effectors like Standard Missile and Tomahawk, to Surface Launched Effectors like Javelin and Coyote, to Air Launched Effectors like AMRAAM and StormBreaker, to Advanced Technologies like Hypersonics and space solutions. We are seeking Systems Engineers to support missile programs in one of a variety of possible roles; As a Responsible Systems Engineer (RSE), you will contribute directly to successful hardware or software requirements and integration for both fielded and development missile systems. This includes managing system and subsystem requirements, providing Systems Engineering technical oversight during integration and test activities, participating in verification and validation efforts for the system, and providing expertise in troubleshooting and failure investigations. As a RSE you would lead the effort to update and maintain all system and subsystem level requirements specifications and be the Systems technical lead ensuring all requirements are being assessed during Verification and Qualification testing. You will engage with the Systems and Hardware teams and Chief Engineer on a variety of technical tasks. Your responsibility would span the entire Systems V to include concept development, system architecture, technical trade studies, functional analysis and decomposition, requirements development and maintenance, system verification, obsolescence, production, and system maintenance. You would be responsible for cross team collaboration, sharing program process knowledge, mentoring engineers, and working with the technical and program leads to execute program tasks. 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, including but not limited to software and hardware subsystems Create and manage systems architecture, requirements, interface definitions and description documents, system integration, and system verification using Cameo by collaborating with multiple product team leads and Subject Matter Experts (SMEs) to obtain necessary design information Participate in technical conversations with the customer Work with suppliers and the Supply Chain organization for procured items managed through the role of Responsible Engineering Authority (REA) for that assembly Lead verification and validation efforts, ensuring all requirements are being assessed during Verification and Qualification testing Conduct trade studies and present results to customers Work closely with the Software and Hardware teams and Chief Engineer on a variety of technical tasks Help to onboard, mentor, and guide team members using core Systems Engineering skills Provide technical expertise in development, integration, troubleshooting and failure investigations Lead Systems Verification Reviews with the Chief Engineer, Lead Systems Engineer, and Integrated Product Team Leadership Work closely with the Systems, Software, Configurable Logic, Hardware and Test teams on a variety of technical tasks Become the knowledgeable and 'go-to' Systems Engineer for the program Support Statistical Process Control assessments in the factory and as part of hardware verification of missile sections and launch platforms as well as at higher level assemblies Facilitate knowledge transfer within and across Integrated Product Teams and Cross Product Teams to include Cross-Functional collaboration and coordination Lead peer reviews and formal release of Contract Data Requirements Lists (CDRLs) and Technical Data Package (TDP) documents Support test equipment software integration and verification for system test Support system performance analysis Qualifications You Must Have Typically requires a Bachelor's Degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline, such as Electrical Engineering, Systems Engineering, Physics or Math and a minimum of 8 (five) years of relevant experience Experience with at least one of the following: software, firmware or configurable logic, hardware, integration, and/or test Experience in one or more of the following areas: Model-Based Systems Engineering (MBSE), Requirements Development, Requirements Management, Requirements Verification, Integration and Test, developing and refining CONOPS, System Architecture, Verification Strategies and Planning Qualifications We Prefer Top Secret Clearance Experience presenting analytical and technical presentations Experience using Agile framework development methods / processes Experience with Automation and/or Digital Engineering Experience in the Defense Industry and specifically with military systems; tactics, techniques, and procedures, as well as Department of Defense customer infrastructure experience Experience evaluating and mitigating technical risks Experience working with multi-disciplinary technical and/or engineering teams Experience in Systems Engineering on a missile program Software or Firmware Verification and Qualification testing experience Prior experience with foreign military sales Ability to perform trade studies to optimize system performance Customer focus and collaboration skills Experience with Change Control Board (CCB), and document release experience (engineering and formal release) Experience creating and linking requirements, architecture, and verification artifacts in Cameo Experience with system and sub-system level requirements development, design and documentation of system level software architecture Experience with performance analysis Experience with DOORS, Cameo and/or Common Product Data Management (cPDM) Ability to manage multiple and competing priorities Strong interpersonal and communication skills Familiarity with system safety, reliability, and configuration management Learn More & Apply Now! This position is onsite in Tucson, AZ. 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. Tucson, AZ: 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. xaygatp 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
