National Math Stars

National Math Stars

Career with us?

We are currently hiring for part-time math mentors. If you’re interested in future positions at National Math Stars, feel free to send your resume to

Leadership Team

  • Ilana Walder-Biesanz

    Founder and CEO Read bio


    Founder and CEO

    Ilana founded National Math Stars in 2023. Prior to that, she worked as a management consultant for Bain & Company, advising for- and non-profits in education, climate, and manufacturing. She started her career as a Product Manager at Yahoo!. She holds a B.S. in Engineering from Olin, an M.Phil. in European Literature from Cambridge, and an MBA from Stanford. In her spare time, you’ll find Ilana attending the theater, reading novels, petting her two cats, and solving all sorts of puzzles.

  • Ambika Dani

    Head of Programs Read bio


    Head of Programs

    Ambika is a first-generation immigrant who grew up in Lagos, Nigeria and Bangalore, India before moving to New York City for college. She has spent the last decade working in private and public charter schools as a mathematics educator and more recently as the Founder and Superintendent of Promesa Academy, a public charter school in San Antonio. She holds a B.A. in Mathematics and an M.A. in Mathematics Education from Columbia University.

  • Alex Lochoff

    Head of Partnerships Read bio


    Head of Partnerships

    A self-professed math nerd, Alex began his career as a 5th-grade STEM teacher in California before joining Edpuzzle, where he led curriculum development for schools nationwide. More recently, Alex ran an education nonprofit focused on expanding college access for first-generation, low-income students. Alex has a BA in Psychology and Education from Dartmouth College.

  • Teresa Lambe

    Head of Operations Read bio


    Head of Operations

    Teresa Lambe brings over two decades of teaching experience, spanning middle and high school, across diverse educational environments. Most recently, she worked for an educational technology start-up dedicated to providing high-quality online classes across the country. Teresa attended the North Carolina School of Science and Math, University of North Carolina at Chapel Hill for a degree in English Education, and UNC Wilmington for a degree in Curriculum and Supervision.