Principal Mechanical CADD Engineer

Job Description

Date Posted : 2025-09-29

Country :

United States of America

Location :

MA131 : Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA

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 :

DoD Clearance : Secret

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 Raytheon Hardware Engineering Organization leads the mechanical, electrical and test hardware design, development and production of radar, sonar, missile, and combat system equipment. The Mechanical team uses state-of-the-art tools, processes, technology, and Raytheon’s CORE principles. Mechanical capabilities encompass a broad range of technical disciplines which include engineering, manufacturing, technical services, materials, processes, analysis, test, and documentation.

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 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 CADD Engineer to support our radar development programs.  You will conceptualize, design, integrate, and document mechanical-focused hardware using computer-aided design, mechanical analyses, and consistent coordination and communication across teams to ensure successful hardware performance.

This role will be based in Marlborough, MA or Tewksbury, MA and is an on-site role.

What You Will Do :

Work with engineers across the business to propose, design, develop, integrate, and document complex detailed designs and large assemblies within the mechanical design department using CREO.

Communicate with engineering team members and suppliers to design, model, and document the design technical data package (TDP) and its capabilities and compliance to configuration and drafting requirements.

Manage large assemblies in CREO and optimize drafting and model methodologies

Ensuring correct update and distribution of engineering documentation following engineering change notices

Being up to date on documentation types per ASME Y14.24 in order to resolve and mediate conflicts per program documentation standards (PDS) for the department and key programs

Provide technical conscience guidance with making sure the product and process meet appropriate standards and requirements while helping to remove roadblocks

Support model and product development from concept layouts to final detailed releases meeting program schedules and priorities

Qualifications You Must Have :

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or An Advanced Degree in a related field and minimum 5 years experience.

Eight years or more experience as a Mechanical Engineering.

Minimum of 5 years of experience in mechanical design drafting and development preferably of defense-related components or systems or aerospace

Proficiency with Computer-aided Design (CAD) Creo and large assembly management, PTC Windchill Product Data Management (PDM), Technical Data Package releases and CN / CR and IR’s

Experience with any Geometric Dimensioning and Tolerancing (GD&T), tolerance analyses, drawing practices and interpretation (ASME Y-14.5) for mechanical hardware

The ability to obtain and maintain a US security clearance prior to the start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer :

Experience with manufacturing techniques and / or assembly best practices

Driving modeling & design process improvements such as : large assembly management techniques, modeling productivity and mechanical component selection effectiveness

Experience military, or aerospace specifications and / or industry design standards

Strong technical background with high technical aptitude and attention to detail

Work under limited supervision and act as the responsible design authority Very strong communications and interpersonal skills when working with team members

Advanced degree in Mechanical, Electrical or Aerospace Engineering

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA.

The following position is to join our RTX Corporate, Enterprise Services, Research Center or BBN team :

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value : Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

RTX solves some of the toughest challenges in aerospace and defense. That requires expansive thinking and bold innovation.

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.

The salary range for this role is 101,000 USD - 203,000 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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