Principal Mechanical Engineer, Control Actuation Systems

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

Benefits offered by this job

Medical insurance

Dental insurance

401(k) match

Paid time off

Job summary

RTX, a leading aerospace and defense company, seeks a principal mechanical design engineer to support the PCAS group in developing control actuation systems. The role requires autonomous work, complex task breakdown, and cross-functional collaboration across distributed teams.

Located primarily at the Tucson/Huntsville facilities, candidate should have advanced degrees in STEM fields and experience with MATLAB/Simulink, DOORS/CAMEO, and dSPACE.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or an advance degree and a minimum of 5 years relevant experience.

Responsibilities

• Provide mechanical engineering support across programs with minimal oversight.
• Apply earned value management and test design as needed.
• Coordinate with cross-functional teams and manage moderate-size projects.
• Learn through hands-on hardware work in Huntsville and Tucson facilities.

Skills

Mechanical design

Flight control systems

Earned Value Management

MATLAB/Simulink

DOORS / CAMEO

Systems engineering

Cross-functional collaboration

Effective communication

Education

Advanced degree in Mechanical Engineering, Aerospace Engineering, Systems Engineering, Electrical Engineering, or Physics

STEM degree

Tools

DOORS

CAMEO

MATLAB/Simulink

dSPACE

MS Office

Job description

Date Posted: 2026-10-12 Country: United States of America Location: US-AZ-TUCSON-M10 ~ 3360 E Hemisphere Loop ~ BLDG M10

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: Active and existing security clearance required on day 1

Position Overview

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. The Precision Control Actuation System department is seeking a principal mechanical design engineer to join the PCAS organization to support the development, build, and verification of control actuation systems. The PCAS organization staffs mechanical engineers for a variety of roles supporting primarily control section Integrated Product Teams.

What You Will Do

You will provide various mechanical engineering support as needs of programs fluctuate. Based on skillsets, support may include but not limited to detailed mechanical design, earned value management, test design and execution, and systems engineering. You will be expected to flex responsibilities based on the current needs of the organization and their respective skill sets. At this grade level, you will be expected to work autonomously with minimal oversight, may manage moderate size projects, delegate work to lower level professionals, have advanced to expert knowledge of the control mechanism development domain, address problems that are difficult and complex, and influence others regarding policies, practices and procedures.

What You Will Learn

The PCAS organization provides ample opportunities for hands-on hardware work, with a dedicated lab space at our Huntsville and Tucson facility. PCAS mechanical engineers are exposed to a variety of lab activities including engineering builds, hardware integration, hardware tuning, and hardware verification. The PCAS organization provides a strong technical learning environment with a dedicated control system technology pyramid comprised of engineering fellows. PCAS mechanical engineers are provided the opportunity for direct access to these subject matter experts, fostering accelerated technical growth.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or an advance degree and a minimum of 5 years relevant experience.
• Experience in mechanical mechanism design OR flight control systems for aerospace applications.
• We Prefer Experience developing flight control systems for aerospace applications.
• Experience in mechanism design.
• Advanced degree in Mechanical Engineering, Aerospace Engineering, Systems Engineering, Electrical Engineering, or Physics.
• Basic proficiency with model development and data analysis in MATLAB/Simulink.
• Experience working with and integrating hardware.
• Basic knowledge of DOORS, CAMEO, and/or other requirements management tools.
• Systems engineering design and development.
• Experience with dSPACE Real-time test systems.
• Proven ability to deconstruct higher level tasks into discrete lower-level work packages and tasks.
• Ability to estimate project / tasks level of effort.
• Ability to cross collaborate with geographically distributed teams.
• Experience and certifications in Earned Value Project Management.
• Ability to articulate, in both oral and written form, to technical, non-technical and management audiences.
• Proficient in Microsoft Office products (Word, Excel, Powerpoint).

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.

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.

EEO Statement

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.

Company Overview

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.