She is a senior lecturer in the Department of Mechanical Engineering at
MIT specializing in engineering design and
appropriate technology for developing countries. She founded the MIT D-Lab program, which works with people around the world to develop and advance collaborative approaches and practical solutions to global poverty challenges. D-Lab's mission is pursued through an academics program of more than 20 MIT courses and student research and fieldwork opportunities; research groups spanning a variety of sectors and approaches; and a group of participatory innovation programs they call innovation practice. She also co-founded
Innovations in International Health to facilitate collaboration among researchers around the world to develop medical technologies for resource-poor settings. She teaches the courses SP.721/11.025: D-Lab: Development and SP.722/2.722: D-Lab Design. In the past, she has taught 2.72: Elements of Mechanical Design. Smith encourages women to become engineers although she dislikes being referred to as a woman engineer. "Actually, because my class involves
humanitarian engineering, I very rarely have more men than women. There have been times where there have been ten women and one man. This isn't surprising, given that women often want to see an application to what they're learning that they feel is worthwhile", says Smith. "But I'm not involved in any particular projects to encourage women engineers, because I dislike being referred to as a woman engineer. I don't like programs that single out woman engineers as particular achievers just for being women. I think that it should be coincidental." ==Inventions==