Principal Engineer – Fuze & Initiation Systems

Prattwhitney; Tucson (AZ); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical insurance

Dental coverage

401(k) match

Paid time off

Job summary

RTX Corporation’s Energetics and Propulsion team seeks a Principal Engineer - Fuze & Initiation Systems in the US. You will apply advanced technologies to fuze and initiation systems for missiles and space vehicles, support safety reviews, and interact with customers and subcontractors to resolve issues.

You will develop initial architectures, ensure design rigor, and prepare technical documentation while traveling to government and supplier sites as needed.

Qualifications

• Bachelor’s Degree in STEM with 5+ years in relevant experience.
• Advanced degree may substitute for 3 years of experience.
• 5+ years in electronic circuit design or safe and arm device development.

Responsibilities

• Develop fuze and initiation system architectures and designs.
• Design, analyze, test, and evaluate fuze systems.
• Prepare SOWs and CIDS; support contract negotiations.
• Interact with DoD customers and travel to facilities.

Skills

Fuzing and initiation systems

Electrical design

Project management

Systems safety engineering

DoD customer interaction

Education

Bachelor’s Degree in STEM

Advanced degree may substitute 3 years experience

Tools

MIL-STD-1316

MIL-STD-1901

MIL-STD-464

Job description

Date Posted: 2026-03-11 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 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. 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 Principal Engineer - Fuze & Initiation Systems.

What You Will Do

• Apply or develop highly advanced technologies, scientific principles, theories, and concepts to the systems integration of fuzing, ignition, and safety devices for integration into missile systems and space vehicles
• Support the Systems Safety Engineering Organization
• Interface with the Customer to identify user needs
• Work with customers, subcontractors and suppliers to resolve engineering issues, develop new products and hold technical reviews
• Develop initial fuze and initiation systems architectures and top-level designs
• Design, analyze, test, and evaluate fuze and initiation systems
• Develop Statements of Work (SOWs)
• Develop Critical Item Development Specifications (CIDS) and electrical logic and interface requirements
• Support fact-finding and contract negotiations
• Ensure technical rigor and depth of all deliverables
• Develop and present technical fuzing designs and updates to the Department of Defense (DoD) safety review boards
• Will travel periodically to government and subcontractor facilities

Qualifications

• You Must Have Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum of five (5) years of prior relevant experience.
• An Advanced degree in a related field may be substituted for three (3) years of relevant experience.
• A minimum of five (5) years of experience in development of electronic circuit design from conceptual design through final test/analysis and assembly, etc., or electronic safe and arm device development experience.
• Project Management as applied to team interaction and deliverables.
• 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.

Preferred Qualifications

• Eight (8) or more years of directly related experience in fuzing and initiation systems devices and their applications.
• Experience with safety devices design, manufacturing, testing, safety certification and/or compliance.
• Experience performing electrical stress analysis, electrical thermal analysis, environment survivability assessment.
• 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.
• Demonstrated success as a proposal/cost account manager as well as project/team leader.
• 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.
• Experience with DoD customers and/or associated contractor executives and technical leadership.
• Active Secret or Top Secret Clearance (Department of Defense).

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.

• parental (including paternal) leave
• flexible work schedules
• achievement awards
• educational assistance
• child/adult backup care
• medical
• dental
• vision
• life insurance
• short-term disability
• long-term disability
• 401(k) match
• flexible spending accounts
• employee assistance program
• Employee Scholar Program
• parental leave
• paid time off
• holidays

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.

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: 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 - 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.