Principal Mechanical Engineer - RF and Airborne Sensors

Date Posted: 2026-11-02

Country: United States of America

Location: US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C BLDG

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. 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 Description

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.

This is an onsite position

What You Will Do

• Provide technical oversight and guidance to small work groups.
• Lead the development of common and mature RF product packaging solutions.
• Serve as a technical resource and subject‑matter expert across the organization.

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 7 years of prior relevant experience to include any combination of the following:
• Experience performing design and analysis for the packaging of RF products (e.g. Circuit Card Assemblies, antennas, radomes, RF test equipment, harnesses and interconnects) throughout the product life cycle to include three dimensional (3D) Computer Aided Design (CAD) software
• Experience with creation of Technical Data Packages (TDPs) using Geometric Dimensioning and Tolerancing (GD&T) for products
• Ability to obtain a U.S. government issued security clearance is required after the start date

Qualifications We Prefer

• Master of Science (MS) in mechanical engineering or electrical engineering
  Experience serving as a Responsible Engineering Authority (REA), Control Account Manager (CAM), and/or Integrated Product Team Lead (IPTL)
• Supplier management for built to print or build to specification RF products
  Experience creating and presenting professional level design documentation to company leadership and program customers
• Creo Simulate or ANSYS Workbench for preliminary structural and thermal analysis of design concepts
• Excellent written and verbal communication skills
  Failure investigation, root cause identification, and corrective action implementation
  Familiarity or direct experience with RF Printed Circuit Board (PCB) material stack ups and Circuit Card Assembly (CCA) layout
• One dimensional tolerance analysis for complex mechanical assemblies
• Development of technical proposals, engineering project estimates, and/or white papers
  Requirements verification test planning and execution

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 based on candidate eligibility.

This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here:

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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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