Principal Mechanical Engineer

Date Posted:

2026-11-10



Country:

United States of America



Location:

US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1



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 freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

The Radar Mechanical Design Department leads mechanical design, development, and integration of some of the most innovative land-based and shipboard radars in the world. This includes phased array radar systems, electronic modules, pedestals, and power and cooling systems. The department comprises individuals with technical expertise and experience in hardware design, integration, and production support.

We have an opportunity for an experienced Principal Mechanical Engineer to support our radar development programs.  This person will be responsible for leading mechanical teams in all phases of our design cycles, from concept development through design, development, build and test. Key requirements for this position include proven problem-solving skills and experience in hardware design and integration, engineering analysis, and mechanical drawing creation with military hardware.  Individuals will interface and collaborate primarily with other engineering disciplines, as well as operations, systems, quality and program offices. We are looking for electronic packaging, structures, and general mechanical lead candidates to join our team.

This Principal Engineer is an on-site role based in Marlborough, MA or Tewksbury, MA.

**What...

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