Mechanical Engineer I

Date Posted:

2026-07-31

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

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

The Raytheon Hardware Engineering Organization leads the hardware design, development and production support of a wide breadth of air, land, sea, and space systems.  The Hardware Engineering team strives to be the premier organization for mechanical design and development through our world class people and technology - creating trusted, innovative solutions to make the world a safer place.  Hardware Engineering’s capabilities encompass a broad range of technical disciplines which include engineering, technical services, materials, processes, analysis, test, and documentation.

Within the Hardware Engineering Organization, the Undersea & Electronics Systems (UES) Department leads the mechanical and electrical design, development, and integration of a diverse set of products, including but not limited to undersea sensors and analysis, naval platforms, shipboard/ground-based processing and power equipment, and launchers. 

The UES department is looking for full-time Mechanical Engineering I, located in Marlborough, MA.

What You Will Do

• Perform mechanical design, development, and documentation of components, sub-assemblies, and major end items for defense system equipment in accordance with system requirements.
• Support the factory and suppliers with product integration
• Collaborate across multiple disciplines/functions to solve complex technical challenges in a fast-paced, team environment.
• Validate design fit and functionality by rapid prototyping and/or simulation
• Participate in design peer reviews, resolving action items, and conduct trade studies to make sound technical decisions.
• Occasional CONUS travel to customer sites or suppliers is generally required.  International and longer duration travel assignments are available but optional

Qualifications You Must Have:

• Bachelor’s Degree in Mechanical Engineering or related (STEM) field obtained prior to start.

• Experience with CAD modeling software

• Experience with CREO

Experience may be obtained through on‑the‑job experience, research, coursework, or projects

Qualifications We Prefer

• Experience in the specification, design, development, production and testing of electronics packaging.
• Strong written and verbal communication skills.
• Experience on DoD programs.
• Experience with PTC CREO and PDM.
• Experience with ANSI/ASME Y14.5 GD&T experience.

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.

• Relocation Eligible

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

• 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.

Clearance Information: 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: https://www.state.gov/m/ds/clearances/c10978.htm

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