Intern, R&D Undergraduate Summer - Thermal, Fluid & Aero Sciences, Hybrid

What Your Job Will Be Like

We are seeking a summer R&D Undergraduate Intern to join our dynamic team.

The Thermal, Fluid, and Aero Sciences group has opportunities for undergraduate interns for the summer of 2026. On any given day, you may be called on to:

• Assist the Thermal, Fluid, and Aero Sciences group with various work projects.
• Conduct computational/modeling simulation in heat transfer, fluid mechanics, particle dynamics/mechanics, or aero sciences.
• Participate and contribute to experiments including wind tunnel testing, explosives testing, laser measurements, X‑ray measurements, high‑speed imaging, rheological characterization, AI/ML, among others.
• Conduct analysis on experimental and computational data.

The internships available span multiple engineering disciplines, including:

• Aerospace Engineering
• Mechanical Engineering
• Chemical Engineering
• Materials Engineering
• Computational Science

At Sandia, we value the important work done by our interns and its contribution to National Security. Because of this, our interns earn competitive pay rates. Our pay structure is based on earned credit hours, classification, and degree level. Your pay rate will be determined during the hire process and included in your offer package. You can view the Intern Pay Rate chart here.

• Currently attending and enrolled full time in the spring term immediately preceding the internship (or scheduled to graduate in the spring) in an accredited undergraduate program
• Pursuing a science, engineering, or math major
• Minimum cumulative GPA of 3.0/4.0
• Ability to work up to 40 hours per week during the summer
• Ability to secure and maintain a U.S. security clearance which requires U.S. citizenship

Note:

If you have not earned a HS diploma or equivalent, please apply to a high school intern position.

• Demonstrated successful teamwork, excellent communication skills (oral and written), and consistent demonstration of good behaviors.
• Experience in thermal, fluid, or aerodynamic measurement or analysis as evidenced by laboratory or project work during undergraduate study.

This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time.

The Thermal, Fluid, and Aero Sciences group stewards research, development, and applications expertise in thermal, fluid, and aero technology areas required to accomplish Sandia's mission in nuclear weapons and national security. Our competencies include engineering analysis, computational model development, experimental diagnostic development, and laboratory testing.

Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting‑edge work in a broad array of areas. Some of the main reasons we love our jobs:

• Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
• Extraordinary co‑workers
• Some of the best tools, equipment, and research facilities in the world
• Career advancement and enrichment opportunities
• Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten‑hour days each week) compressed workweeks, part‑time work, and telecommuting (a mix of onsite work and working from home)
• Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance*

World‑changing technologies. Life‑changing careers. Learn more about Sandia at: http://(Use the "Apply for this Job" box below)..gov

* These benefits vary by job classification.

Sandia is required by DOE to conduct a pre‑employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE L‑level security clearance, which requires U.S. citizenship. If you hold more than…