While aesthetics are important, their role is to design products that are practical, safe, and attractive. They're responsible for taking an idea from concept to factory-ready production, and ensuring the product works and can be produced efficiently.

They can't design in a vacuum; good designs must be viable for real-world production. A key part of their job involves researching materials and understanding manufacturing constraints. They frequently work with engineers and manufacturers to improve how parts work and ensure the product can be made in large quantities.

Employers specifically look for end-to-end design work. Their portfolio shouldn't just be the final glossy render; it must demonstrate their process, from initial sketches and shape studies to the final render, proving they can handle the entire design journey.

While they use 3D computer models, the role is quite hands-on. They're expected to build and test physical samples to check for strength, comfort, and ease of use before the product goes to mass production.

Collaboration is central to the job. They don't just hand off a drawing; they work closely with engineers and manufacturers to refine the product's shape and function. They also conduct research into user needs to ensure the final object solves a real problem.