Senior Mechanical Engineer

Date Posted:

2026-08-17

Country:

United States of America

Location:

US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675

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.

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 Tactical Radars department within Raytheon Hardware Engineering supports the development, production, and deployment of multiple defense products including radars, missiles, command and control systems, and naval electronics.  The products support US Government and international customers.

This Senior Mechanical Engineer will support the Sentinel radar product line based in Fullerton, CA and may require domestic and international travel to suppliers.  This position will be an onsite role.

What You Will Do

Working within a team environment to develop innovative mechanical subsystems with solid modeling practices and drawing creation using CAD tools such as Creo Parametric, Solidworks, Catia or equivalent.
Use preliminary sketches, diagrams, and other engineering information to generate 3-D design models and/or conceptual designs
Experienced with solid modeling practices and drawing creation using CAD tools such as Creo Parametric, Solidworks, or equivalent.
Knowledge of fabrication processes, capabilities and limitations
Provide transparent identification and communication of issues to functional leadership and engagement for resources (Subject Matter Experts, etc.) to resolve production issues rapidly and efficiently.
Coordinates integration efforts across the Cross Product Teams in the Sentinel portfolio to ensure successful system design, integration, production and program execution.
Primary technical authority and point of contact for all aspects associated with the radar technical data package (TDP) including design, development, manufacturing, and failure investigation
Understanding of and disciplined application of tools / processes / approaches / instructions across the radar product life cycle
Key participant in the Engineering changes process, peer review process, Engineering Documentation Standards (EDS) implementation, Configuration Control Board (CCB) participant as required by command media
Supports program growth and technology insertion strategies working closely with the program technical leadership, Program Office, Chief Technologists, and Technical Directors.
Primary technical interface with top level Integrated Product Team Lead (IPTL) for planning and execution of production programs, lateral product applications, and major Engineering Change Proposals.

Qualifications You Must Have 

Bachelor’s degree in science, Technology, Engineering, and Mathematics (STEM) and a minimum of 7 years of prior relevant experience. Advanced degree in a related field may be substituted for additional years of experience.
Demonstrated leadership experience as a senior mechanical engineer.
Understanding of cost and schedule responsibilities. 
Experience working proposals.
Experience working across multiple product lifecycle stages of a radar production program.
Experience working across multiple functional and