Principal Mechanical Engineer

Date Posted:

2026-09-03



Country:

United States of America



Location:

US-AZ-TUCSON-9030 ~ 9030 S Rita Rd ~ BLDG 9030



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:

Secret - Current



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 Hardware Engineering, Air Launched Effectors Department is seeking Mechanical Engineers for our Tucson AZ site supporting full program life cycle, early development, production support, and legacy sustainment activities across the Air Launched Effectors products and subsystems. These products support US Government and international customers.

Mechanical Engineering positions perform in alignment to expectations in the design,  development, and production support areas associated with mechanical designs, validation principals, qualification processes, procurement, and production processes across a design life cycle.  Development work may include requirements understanding, concept development, DFMAs, PFMAs, margin analysis, technical data package (TDP) development, application of geometric dimensioning and tolerancing principals, engineering test principals, preparation of technical analysis reports, and presenting in design reviews.

These positions support product lines based in Tucson, AZ, and may require domestic and international travel to suppliers, Raytheon facilities, and customer sites. 

Positions are onsite in Tucson, Arizona

What You Will Do

• Perform mechanical design, development, and documentation of components, sub-assemblies, for tactical missile systems and equipment in accordance with system requirements.

• Lead mechanical engineering teams and collaborate across multiple disciplines with structural and thermal analyst, Materials Engineering, Quality, Safety, Supply Chain, Operations, and program leadership.

• Support the factory and suppliers with product development, obsolescence, troubleshooting, domestically and internationally.

• Interface with other engineering disciplines, non-technical disciplines, and suppliers to develop design solutions and resolve technical challenges.

• Work with limited supervision and meet commitments for assigned schedule, financial, and technical goals.

• Support and participate in design peer reviews, resolving action items, and conduct trade studies to make sound technical decisions.

• Working knowledge of First Article Inspection process (FAI), work along side Quality engineers in support of that in addition to Raytheon Source Inspection (RSI).

• Apply knowledge and experience in technical problem solving and hardware development in a fast paced, team environment.

• Mentor and guide a team of engineers within program.

• Utilize Raytheon hardware tools and processes.

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience, or An Advanced Degree in a related field and minimum 5 years experience.

• Experience in ANSI/ASME Y14.5 GD&T (Geometric Dimension and Tolerances) and tolerance analysis.

• Experience in CREO (Pro/E) or similar 3D solid modeling software.

Qualifications We Prefer

• Experience in a technical leadership role including experience across the development lifecycle

• Experience leading and conducting trade studies, development and design, requirements development and management, and integration and test of mechanical engineering products.

• Experience working across multiple functional and discipline organizations to successfully resolve technical challenges.

• Experience in the development, creation, release, and updates of mechanical technical data packages.

• Experience in the review and interpretation of technical documentation in a production environment.

• Advanced degree in mechanical or manufacturing engineering, or hardware systems design.

• Experience working development and production programs for products used in military applications.

• Experience working in a factory supporting full rate production of missile components and assemblies.

• Working knowledge of Military and Commercial Specifications.

• Experience working with suppliers that develop mechanical products, machined parts, and electronics.

• Experience with CREO (Pro/E) or similar 3D solid modeling software.

• Experience with PTC Windchill Product Data Management or equivalent configuration/data management software.

• Demonstrated team player, self-driven leader with excellent collaboration skills.

• Must possess strong technical writing and oral communication skills.

• Must be able to work autonomously with minimal supervision.

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.

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.

#LI-AP2

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.

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