Principal Mechanical Engineer - Test Equipment, Onsite (Tucson, AZ)

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

Benefits offered by this job

Relocation assistance

Comprehensive benefits

401(k) match

Job summary

RTX seeks a Principal Mechanical Engineer in Tucson, AZ for on-site work in Raytheon’s Test Equipment Engineering Directorate (TEE). Requires 8+ years in mechanical design, proficient in CAD (ProE/CREO) and GD&T, with Windchill/cPDM experience.

Responsibilities include designing test systems and validating them against strict spec accuracy and reliability. The role emphasizes hands-on engineering across vibration, thermal, hydraulic, RF, and electro-optical domains, with opportunities to

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) is typically required.
• 8+ years of technical/engineering experience in mechanical design or production support.
• Experience with CAD (ProE/CREO) and GD&T analysis, and creating mechanical drawing packages.
• Knowledge of Windchill/cPDM and Model Based Engineering concepts.

Responsibilities

• Research, plan, design and develop mechanical test systems (vibration, thermal, hydraulic, RF, electro-optical).
• Integrate and validate test systems against stringent accuracy and reliability requirements.
• Evaluate installations and recommend design modifications to eliminate malfunctions.

Skills

CAD solid modeling

GD&T analysis

Mechanical drawing

Model Based Engineering

Systems engineering

Education

Bachelor's degree in STEM

Tools

Windchill / cPDM

Job description

Date Posted: 2026-09-21 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.

Job Overview

This position is for a Principal Mechanical Engineer with a minimum of eight (8) years of professional experience. If you’re energized by designing, developing, documenting, and sustaining innovative test environment systems, the Test Equipment Engineering Directorate (TEE) would love to hear from you! This position is 100% onsite in Tucson, AZ. Tucson has a friendly, caring and laid-back atmosphere, combined with the innovation and energy of a metropolitan region and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round 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 Test Equipment Engineering (TEE) Directorate is a multi-discipline organization responsible for developing test solutions for all Raytheon Missile Defense (RMD) products. We are hands-on, designing with the latest technology and tools, and integrate state of the art test solutions with the most advanced engineering systems in the world. TEE products are located in engineering labs, in the field, and in production environments utilized for weapon system product verification, qualification, test data analysis, and production test solution development. TEE has job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and sustainment.

What You Will Do

Research, plan, design and develop mechanical test systems in areas including, but not limited to, vibration, thermal, hydraulic, radio frequency, and electro-optical for production testing environments. Integrate and validate test systems against stringent accuracy and reliability requirements. Evaluate production installations and recommend design modifications to eliminate malfunctions.

Qualifications

Typical requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience Minimum of eight (8) years of technical / engineering experience in mechanical design and/or production support. Skilled in using CAD solid modeling and analysis tools, with an emphasis on ProE / CREO Parametric for complex design and engineering workflows. Demonstrated experience with geometric dimensioning and tolerance (GD&T) analysis. Experience creating mechanical drawing packages. Design experience with mechanical and electronic packaging. Experience with Configuration Management processes, application, and tools (e.g., Windchill / cPDM). Experience in Model Based Engineering or Model Based Design. Experience in mechanical sub-systems packaging, materials, thermal analysis, structural analysis, control systems, electrical hardware design, or large assembly development. Experience with environmental stress screening of hardware (e.g., vibration, shock, thermal, etc.). Systems engineering experience. Knowledge of basic management approaches such as work scheduling, prioritizing, coaching and process execution. Experience in proposal development and the first four gates within the Integrated Product Development System (IPDS). Experience with providing guidance and assistance to less experienced professionals and/or support employees.

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. This position offers relocation This position requires a security clearance. 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.

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.