Dr Si-Hui Tan heads the research development for Horizon’s software that will compile classical code to be run on a quantum computer. She is an active researcher in the field of quantum information science for over 15 years, and has published extensively in top journals and conference proceedings. Si-Hui received a BSc in Physics from the California Institute of Technology and a PhD in Physics from the Massachusetts Institute of Technology (MIT), where she was the recipient of the prestigious MIT Presidential Fellowship. Prior to joining Horizon, Si-Hui was a research scientist at the Singapore University of Technology and Design, the Centre for Quantum Technologies, and the A*STAR Data Storage Institute. Si-Hui is an active member of Zonta International, and a board member and treasurer of the Zonta Copenhagen Multicultural Club. Si-Hui was honoured as the silver winner for CTO of the Year at the WomenTech Global Awards 2020: a prize to recognize innovative and impactful technological leadership as head of global IT, while fostering diversity, inclusion and belonging.