A product developer is a mix between an engineer and an industrial designer that develops new products or improves existing ones for small businesses or large corporations. In this career, you work with clients to understand their needs, research market opportunities, and delve into trends to see which products sell the best. With this data, you try to create a competitive design. Your job duties can include creating prototypes, translating sketches into specification sheets, using computer design programs, and collaborating with sales, marketing, technical, or manufacturing departments to launch products. As a product developer, you combine business skills with design and engineering to invent better products than those on the market.