Principle Mechanical Engineer

Date Posted:

2026-08-17

Country:

United States of America

Location:

US-TX-MCKINNEY-513WZS ~ 2501 W University Dr ~ WZS BLDG

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

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.

What You Will Do 

• Responsibilities include all aspects of the automated solution being deployed.  Mechanical design from concept to model / drawing completion for moderate to high complexity required.
• Ability to work and support projects with minimal supervision. In this role, you will be expected to manage projects with the design, component selection, obtaining quotes, make versus buy decisions for fabrication and assembly, tracking and maintaining schedule adhering to budget, and presenting status at meetings.  

What You Will Learn

• Techniques to troubleshoot, maintain, and repair deployed automation solutions, as well as how to specify robotics PLC's, sensors, thermal management design and temperature monitoring.
• Ability to run the software and teach robotics positions and vison routines.

Qualifications You Must Have 

• Typically requires University Degree or equivalent experience and minimum 8 years prior relevant experience, or an Advanced Degree in a related field and minimum 5 years experience
• 5-7 years of experience with the design process as outlined above.  Knowledge of metal fabrication processes and machined parts design, design for manufacturing and assembly (DFMA) practices.
• Proficiency with 3D modelling using Creo (or equivalent) and ACAD.

Qualifications We Prefer

• Advanced degree
• Understanding of the product build process. Engineering capital appropriations request. Managing schedule and budget of large capital projects. 
• Ability to work with external suppliers.
• Ability to read and interpret engineering drawings, including a basic knowledge and understanding of GD&T.
• Capable of working autonomously with limited oversight in a self-motivated manner.
• Ability to succeed in a teaming environment with timely problem resolution utilizing a positive, proactive attitude and a strong customer focus.
• Ability to obtain secret clearance.
• Ability to adapt to changing product requirements.
• Effective communication skills.
• Experience with automation, including motion control, robotics, and sensor specification

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.

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 insur