Easy interview, typical behavioral + technical questions they asked about the design process of a shelf and the failure points of the design. They asked about the mechanical design process stages.
I applied through an employee referral. The process took 4 weeks. I interviewed at Lutron Electronics in Sep 2025
Interview
The interview was a one-hour technical interview with a mechanical engineer at Lutron. It was conversational but focused mostly on problem-solving and mechanical fundamentals. The interviewer started with a few behavioral questions about teamwork, leadership, and learning experiences, and then moved into technical problems related to mechanical design and materials.
Interview questions [1]
Question 1
One of the technical questions was to model a metal contact (like a switch contact) as a cantilever beam and explain how changing its length or thickness would affect the contact force. I had to walk through the reasoning, including how force relates to deflection and why stiffness changes with geometry.
I applied online. The process took 1 week. I interviewed at Lutron Electronics in Oct 2024
Interview
Very technical. I was asked to describe the stress-strain curve in detail, the modes of heat transfer, manufacturing principles (related to casting, 3D printing, and injection molding), and how to manufacture a pen.
Interview questions [1]
Question 1
-Draw the stress vs strain curve.
-Explain the mechanism of how a pen pushes in and out.