Mechanical Engineering Intern

At BWX Technologies, Inc. (NYSE: BWXT), we are People Strong, Innovation Driven. A U.S.

-based company, BWXT is a Fortune 1000 and Defense News Top 100 manufacturing and engineering innovator that provides safe and effective nuclear solutions for global security, clean energy, environmental restoration, nuclear medicine and space exploration. With more than 7,800 employees, BWXT has 14 major operating sites in the U.S., Canada and the U.K. We are the sole manufacturer of naval nuclear reactors for U.S. submarines and aircraft carriers.

Our company supplies precision manufactured components, services and fuel for the commercial nuclear power industry across four continents. Our joint ventures provide environmental restoration and operations management at a dozen U.S. Department of Energy and NASA facilities. BWXT’s technology is driving advances in medical radioisotope production in North America and microreactors for various defense and space applications. For more information, visit  Follow us on Linked In, X, Facebook and Instagram.

We believe in empowering our employees and cultivating a dynamic workplace that fosters growth and collaboration. Whether you’re an experienced professional or just starting your career, you'll find opportunities to challenge yourself, learn from seasoned experts, and contribute to nuclear innovation. We require a diverse range of skills to support our work in the markets that drive our business and welcome candidates from all backgrounds and life stages who are passionate about making a difference.

The Metallurgical/Materials Engineering Intern supports the engineering team by assisting with materials testing, quality analysis, process improvement initiatives, and research activities related to metals and industrial materials. This role provides hands‑on experience in laboratory work, data analysis, and real‑world application of materials engineering principles within a manufacturing or industrial environment.

On‑site in Jonesborough, TN

• Assist with metallurgical testing, including hardness tests, tensile tests, microstructure analysis, and failure investigations.
• Prepare and examine samples using metallurgical equipment such as microscopes, polishing tools, and cutting equipment.
• Support material characterization activities and help maintain accurate testing documentation.
• Collect and analyze data to evaluate material performance, quality trends, and process stability.
• Help identify and troubleshoot issues related to materials, coatings, heat treatment, and production processes.
• Work with engineers and production teams to support continuous improvement projects focused on material performance and reliability.
• Assist in updating material specifications, work instructions, and process records.
• Participate in research activities related to new alloys, material properties, or processing methods.
• Maintain a clean, safe, and organized laboratory workspace following company safety standards.

• Currently pursuing a degree in Metallurgical Engineering, Materials Science, Mechanical Engineering, or a related field.
• Basic understanding of metals, alloys, material behavior, and testing methods.
• Familiarity with laboratory equipment and safe testing practices.
• Strong analytical skills and attention to detail.
• Ability to collect, interpret, and present technical data clearly.
• Good communication and teamwork skills.
• U.S. citizenship

• A cumulative GPA of 3.0 or higher.
• Completed coursework in Statistics, Mechanics of Materials, and/or Solid Modeling.
• A strong passion for engineering innovation and learning in a nuclear environment.
• Proficiency with Microsoft…