Senior Principal Engineer

Date Posted:

2026-08-06

Country:

United States of America

Location:

US-AZ-TUCSON-928 ~ 1151 E Hermans Rd ~ MULTI PURPOSE FAC 928

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 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 Energetics and Propulsion Department is an engineering organization in the Hardware Engineering Directorate. They are looking for a Senior Principal Engineer – Electrical Fuze & Initiation Systems. This Department is responsible for the full spectrum of warhead, fuzing, and propulsion designs/technology, including power systems, ignition, and all other weapon initiation safety systems technology. The department is seeking to hire a Senior Principal Engineer – Fuze & Initiation Systems.

The Senior Principal Engineer – Electrical Fuze & Initiation Systems role is in Tucson, AZ and is an onsite position.

What You Will Do

• Apply or develop highly advanced technologies, scientific principles, theories, and concepts to the systems integration of fuzing devices, controllers, software, mechanical and electrical interfaces for integration into missile systems and space vehicles
• Involvement with both development and production programs across Raytheon product lines
• Review manufacturing processes and problem resolution as well as working directly with subcontractors on the design and manufacturing of fuzing devices
• Work in a collaborative environment with program management in long-range program planning concerning new or projected areas of technological research and advancements and be a key spokesperson on program’s technical capabilities and future directions
• Manage fuzing device development projects and propulsion subcontracts; review and disposition subcontract data and change requests; and oversee supplier operations
• Provide frontline lead activities and mentor engineers who develop fuzing devices
• Develop and deliver technical presentations to management and government agencies
• Frequently interface with the Customer to identify user needs
• Be instrumental in obtaining new company business and act independently to uncover and resolve issues associated with the development and implementation of operational missile programs
• Will travel extensively to government and subcontractor facilities

Qualifications You Must Have

• Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and 10 years of prior relevant experience OR an Advanced degree and 7 years of relevant experience
• A minimum of ten (10) years of experience in fuzing / one shots / engineering technology and/or engineering design
• Experience with fuzing devices design, manufacturing, testing, safety certification and/or compliance
• Project Management as applied to team interaction and deliverables
• The ability to obtain and maintain a US security clearance prior to the start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer

• Advanced STEM degree
• Twelve (12) or more years of directly related experience in fuzing devices and their applications
• Systems knowledge to assure full development of fuzing device requirements and dissemination and flow down to subcomponent levels
• Ability to perform fuzing trade studies evaluating different electrical designs and estimate design and production cost and schedule
• Experience with safety devices design, manufacturing, testing, safety certification and/or compliance
• Experience performing electrical stress analysis, electrical thermal analysis, environment survivability assessment
• Ability to analyze analog, digital, mixed signal and power conversion circuits using simulation and computational skills
• Experience in developing fuzing, safe & arm products that meet MIL-STD-1316, MIL-STD-1901, and MIL-STD-464
• Working knowledge of JOTP-051, 052, 053
• Experience with energetic and pyrotechnic initiators, exploding foil deflagrating initiators (EFDI), and Low energy exploding foil initiators (LEEFI) and their operation
• Technical writing skills in the area of detailed design requirements, test requirements, statements of work, white paper and technical presentations
• Project engineering skills and experience using Earned Value Management System
• Willingness to travel, including international, to provide supplier support
• Supplier collaboration experience and oversight generating specifications and statements of work (SOW)
• Working knowledge or experience with either missile design or development, production support and integration
• Advocate for process improvement (e.g., CMMI, R6s, etc.), team builder, and ability to build strong relationships and effectively partner with internal and external resources
• Active Secret or Top Secret Clearance (Department of Defense)

Learn More & Apply Now

RTX Corporation 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 – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 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, VA.

What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the superior benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance, and child/adult backup care.

Employee Referral Award Eligibility: This requisition is eligible for an employee referral award. ALL eligibility requirements must be met to receive the referral award.

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

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 132,400 USD - 251,600 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.

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