Ken Hsieh worked as a software developer at Wolfram Research from 2009 to 2012. He is currently employed at Microsoft. Ken's earlier work as a theoretical high-energy physicist was in the specific domains of physics beyond the Standard Model, Higgs boson, and dark matter. Ken held a post-doctoral research associate position in the Department of Physics at Michigan State University. He has published eight papers in highly-regarded journals and keeps an interest in the current research developments.

While at Michigan State, Ken was a co-instructor of a group seminar on quantum field theory and occasionally guest-lectured for undergraduate mathematical physics courses. At the University of Maryland, Ken was a teaching assistant for physics courses and a private tutor. He gives technical talks, presentations, and training courses about Mathematica for Wolfram Research in Asia and North America.