Advanced Programs Principal Mechanical Engineer

globalhr; McKinney (TX); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Onsite work

Job summary

Raytheon Technologies in McKinney, TX is seeking a Principal Mechanical Engineer to lead RF mechanical design, testing, integration and documentation for advanced programs onsite.

You will apply GD&T, ANSI drawing standards, and extensive electronics packaging experience, mentor engineers, and coordinate with program management to meet cost, schedule, and performance goals.

Qualifications

• B.S. in Mechanical Engineering from ABET-accredited university.
• 10+ years in design/manufacturing of electronics packaging for aerospace/military.
• Thorough knowledge of GD&T and ANSI drawing standards.
• Willingness to travel up to 25% to suppliers and sites.
• Ability to mentor early-career engineers.
• U.S. Citizenship and active security clearance required.

Responsibilities

• Design tightly toleranced RF components.
• Create, refine, and release detailed drawings.
• Apply GD&T to detail manufacturing standards for RF components and assemblies.

Skills

GD&T

ANSI drawing standards

Leadership

Mentoring

Geometric Dimensioning

Education

ABET-accredited B.S. in Mechanical Engineering

ABET-accredited M.S. in Mechanical Engineering

Tools

CREO

Job description

Date Posted: 2026-09-21

Country: United States of America

Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D 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: Active and existing security clearance required after 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. Raytheon’s Airborne Sensor RF Design Department is seeking a Principal Mechanical Engineer to work on Advanced Programs onsite at our McKinney, Texas location. The candidate will perform mechanical design, test, integration and documentation tasks for RF (Radio Frequency) systems and sub-systems, including antennas, radomes, sensors, waveguides and supporting electronics. The candidate will be responsible for leadership in the areas of mechanical design, requirements development, design concept development and trade studies in addition to detailed hardware design and documentation.

The candidate is expected to follow established procedures and instructions while working closely with program and functional leadership to ensure that overall design goals are met. The candidate is expected to have extensive experience in the use of solid-modeling CAD software and have multi-year experience in electronics packaging. The candidate is also expected to be experienced in the use of Geometric Dimensioning and Tolerancing (GD&T) for design documentation and fabrication. The candidate will be responsible for developing technical solutions to a wide range of complex problems. The candidate will be responsible for supervising the definitions of mechanical outline and construction details, connector selection and specification, generating mechanical and assembly drawings, and overseeing electrical layout and the technical data package. Familiarity with ANSI drawing standards is required. The candidate will also be responsible for meeting cost, schedule, quality, and performance requirements for the finished product. The candidate will work with minimal direction or supervision, while exercising latitude in choosing the technical objectives of the assignment. The position will require frequent interaction with program management and external personnel, as well as the mentoring of early-career engineers.

Periodic travel, up to 25%, may be required as needed.

What You Will Do

• Design tightly toleranced RF components
• Create, refine, and release detailed drawings
• Apply knowledge of Geometric Dimensioning & Tolerancing to detail manufacturing standards for RF components and assemblies

Qualifications You Must Have

• B.S. in Mechanical Engineering or a related field, from an ABET-accredited university
• 10+ years of experience in the design and manufacturing of electronics packaging for military and aerospace applications
• Thorough knowledge of GD&T, ANSI drawing standards and first order analysis techniques
• Ability to travel periodically to suppliers, manufacturing facilities and customer sites to support programs (up to 25%)
• Ability to apply basic principles, theories, and concepts within the mechanical engineering field
• Deep desire to mentor earlier career engineers
• U.S. Citizenship is required, as this position requires an active U.S. Security Clearance

Qualifications We Prefer

• M.S. in Mechanical Engineering or a related field, from an ABET accredited university
• 12+ years of industry experience in the design and manufacturing of electronics packaging for military and aerospace applications
• Solid modeling experience, using CREO
• Experience with testing of electronics to military environments (MIL-STD-810)
• Excellent leadership skills and project management skills
• Demonstrated presentation and communication skills
• Experience negotiating with internal and/or external suppliers