Mechanical Engineer II

RTX (Raytheon); Portsmouth (RI); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

Relocation eligibility

Job summary

Raytheon in Portsmouth, RI is seeking a full-time Mechanical Engineer II for an onsite role. The position involves mechanical design, development, and documentation of defense system components, with collaboration across disciplines.

Requirements include a STEM degree and at least 2 years of experience, GD&T, CAD modeling, and the ability to obtain a DoD Secret clearance. U.S. citizenship is required. Occasional travel may be required.

Qualifications

• Typically requires a STEM degree and a minimum of 2 years of prior relevant experience.
• Experience selecting materials for structural, thermal, mechanical, electrical, producibility and corrosion mitigation.
• Experience with GD&T, tolerance analysis, metal fabrication, and assembly techniques.
• Experience with CAD modeling and engineering documentation practices.
• Ability to obtain and maintain a U.S. government security clearance; U.S. citizenship required.

Responsibilities

• Design, analyze, and document components and end items per system requirements.
• Solve technical issues with a design team and drive results.
• Develop designs from concept to data package and support builds and production.
• Collaborate across structural, thermal and electrical disciplines to solve challenges.
• Attend design reviews, close action items, and run trade studies.
• Occasional CONUS travel to sites; international travel optional.

Skills

Mechanical Design

CAD Modeling

GD&T (ASME Y14.5)

Tolerance Analysis

Cross-functional Collaboration

Technical Communication

Education

STEM degree

Tools

PTC CREO

PDM

Job description

Date Posted: 2026-09-16

Country: United States of America

Location: US-RI-PORTSMOUTH-PS3 ~ 1847 W Main Rd ~ NIMITZ WEST 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 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 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 design, development, and integration 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 a full-time Mechanical Engineer II. This role will be on-site and located in Portsmouth, RI.

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.
• As a member of a design team you will help solve challenging technical issues and drive results through efficiently completing assigned design and support tasks.
• Develop mechanical designs from initial concept to formal technical data package generation (engineering drawings, models) and culminating in initial builds, testing, transition to production, and production support.
• Collaborate across multiple disciplines/functions (i.e. structural/thermal analyses and electrical engineering) to solve complex technical challenges in a fast-paced, team environment.
• Participate in design peer reviews, resolve 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 may be available but optional.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience.
• Experience in selection of materials for structural, thermal, mechanical, electrical, producibility, and environmental considerations including corrosion mitigation and prevention.
• Experience with GD&T (ASME Y14.5), Tolerance Analysis, metal fabrication (machining, sheet metal), assembly joining techniques (fasteners, rivets, inserts)
• Experience with CAD modeling and Engineering Documentation practices.
• 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.

Qualifications We Prefer

• Experience in specification, design, development, production and testing of electronics systems. Specific knowledge of packaging electronic equipment to meet physical and environmental constraints is preferred.
• Experience with Military and Commercial Specifications.
• Experience with PTC CREO and PDM.
• Experience managing financial and schedule performance of program level tasking.
• Demonstrated ability to solve difficult problems while working as part of a cross functional team.
• Strong communication skillset with ability to articulate, in both oral and written form, to technical, non-technical and management audiences.

What We Offer

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

Relocation Eligibility

Onsite: Employees who are working in Onsite roles will work primarily onsite.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybr