School of Engineering


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  • Tumisang Ramarea

    Tumisang Ramarea

    Course Asst-Graduate, Management Science and Engineering

    BioRamarea is currently a graduate student - MS - studying Decision and Risk Analysis in the Department of Management Science and Engineering at Stanford. He believes his role in the world is to catalyze the impact of initiatives and projects aimed at ending economic poverty. He hopes to do this primarily by applying his engineering education to support rational and intelligent decision-making within high-impact organizations. Born and raised in Botswana, Ramarea has a bias towards organizations that work in or on Emerging Markets. He also hopes to help end economic poverty by investing in youth-owned businesses in Botswana and providing mentorship to academically gifted students from marginalized backgrounds. He holds a BS degree in Management Science and Engineering (class of 2019) from Stanford, where he attended as a MasterCard Foundation Scholar and a United World College Davis Scholar. He is an alumnus of the United World College of Costa Rica (class of 2015) and remains active in the UWC movement; serving on the UWC National Committee of Botswana and volunteering as an adult mentor in the annual retreat on the Constructive Engagement of Conflict at UWC USA. In his spare time, Ramarea enjoys cooking, journaling, and spending time with loved ones.

  • Heidi Roizen

    Heidi Roizen

    Adjunct Lecturer, Management Science and Engineering

    BioHeidi Roizen is a venture capitalist, corporate director and ‘recovering’ entrepreneur. Today, Heidi is a partner at leading technology venture firm Threshold Ventures. She is currently also a corporate director for DMGT (LSE:DMGT), Invitation Homes (NYSE:INVH), Planet, Upside Foods, Lumity and Polarr. She started her career as co-founder of software company T/Maker and served as its CEO for over a dozen years until its acquisition by Deluxe Corporation. After a year as VP of Worldwide Developer Relations at Apple, Heidi then became a venture capitalist in 1999. She has undergraduate and MBA degrees from Stanford and is the proud mother of two kids and two rescue dogs.