Mechanical - Structural/Thermal Engineering Intern (Summer 2027)

Date Posted: 2026-10-21

 Country: United States of America

 Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805

 Position Role Type: Onsite

 U.

S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.

​ 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: Ability to obtain INTERIM U.

S. government issued security clearance is required prior to start date 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 Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design robustness across the Raytheon product portfolio.

From preliminary concepts to fielded weapon-system support, MA&T delivers innovative structural and thermal engineering solutions. Our work spans classical, fundamental, and empirically based techniques as well as state-of-the-art finite element methods using industry‑leading commercial tools—all complemented and validated by testing executed to ensure cost-effective yet technically sound solutions.

As an intern in the Analysis and Test Department, you will work one on one with a senior engineer, tackling the same structural and thermal analysis tasks assigned to entry-level engineers.

You will be responsible for performing analyses and/or tests, participating in peer reviews, and generating final documentation. You will finish your internship knowing you contributed to the success of the Analysis and Test Department—and Raytheon as a whole.

What You Will Do • Derive mechanical and thermal loads and environments • Perform hand calculations for higher order detailed analysis • Conduct detailed structural or thermal analyses to solve challenging problems • Perform peer reviews to validate analysis processes and results • Present results to customers • Generate detailed, archival technical reports What You Will Learn How to operate as part of an Integrated Product Team, collaborating with multiple engineering disciplines to solve complex technical challenges How structural and thermal engineering are executed in an innovative industry environment through department‑sponsored training and mentoring from senior staff Qualifications You Must Have • Must be pursuing Bachelor’s or Advanced degree in Mechanical Engineering, Aerospace Engineering or related (STEM) major and actively • Must have a minimum of 60 hours of credit by the start of the internship / co-op session.

• Experience with finite element analysis (FEA) tools such as ANSYS Workbench, Patran, Nastran, or Thermal Desktop. • Experience may be obtained through on-the-job experience, research, coursework, or projects Qualifications We Prefer • Experience with Microsoft Office tools: Word, Excel, Outlook, PowerPoint • Experience with CAD tools such as CREO • Experience solving problems using data‑driven approaches • GPA of 3.

0 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 Eligibility Learn More & Apply Now • 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 42,000 USD - 88,000 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.