Mechanical Engineer Intern (Summer 2027)

Date Posted: 2026-10-07 Country: United States of America Location: US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET 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 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. What You Will Do As a Mechanical Engineer Intern, you will support the Hardware Engineering Team in providing engineering design & development services to a wide range of products within Raytheon. The Critical Item Production Readiness (CPR) department is dedicated to ensuring that every product we develop is designed with its entire production lifecycle in mind. By integrating principles of manufacturability, assembly, scalability, and cost management, we aim to achieve production excellence while meeting the highest standards of quality and reliability. You would apply your skills to contribute to the requirement flow down, verification, environment stress screening and/or design-to-unit production cost (DTUPC) management for hardware in programs for Naval Power and Land and Air Defense Systems strategic business units. Working as an advocate for Hardware Engineering, you will coordinate between Systems Engineering and the Hardware Team to allocate the requirements, compile verification artifacts working with electrical (e.g. power/digital/RF/…) and mechanical (e.g. structural/thermal/material…) subject matter experts and develop compliance packages for design reviews and product requirements “sell off” with the customer. Similarly, for DTUPC tasking, you will coordinate between the Affordability Engineer and the Hardware team on critical items and technology to adjudicate cost reduction opportunities resulting in cost reduction initiatives. Key Responsibilities Flow down, allocation and derivation of electrical and mechanical hardware requirements that reflect the system level requirements.  Verification planning and artifact generation for electrical and mechanical hardware requirements Determine gaps for existing/non-developed hardware against requirements Apply Design to Cost best practices on development programs Training and application of RTX tools including PTC Windchill PDM and IBM DOORS Collaboration with coworkers and multi-discipline teams. Training in Raytheon processes and procedures Qualifications You Must Have Must be pursuing Bachelor’s or Advanced degree in Mechanical Engineering and actively enrolled through the completion of the internship/co-op session. Must have a minimum of 60 hours of credit by the start of the internship / co-op session. Experience developing and delivering presentations (verbal and/or written) Qualifications We Prefer Prior RTX internship, co-op, or work experience. Prior engineering project or internship experience Experience with Microsoft Office or other presentation tools 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 Learn More & Apply Now! 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. 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, hybrid or remote. The salary range for this role is 37,000 USD - 82,000 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX 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, Pratt & Whitney, and Raytheon. Its 195,000 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, Virginia.