Bill is the Chief Scientific Officer at Premaitha Health plc and Chief Executive Officer of Yourgene Bioscience, which he founded. After completing his PhD at University of Melbourne, Australia, Dr Chang joined Academia Sinica in 2007 as a research specialist and established the bioinformatics core facility at the Institute of Plant and Microbial Biology. In 2010, Bill established Yourgene Bioscience to provide Next Generation Sequencing and bioinformatics services. He co-founded Sofiva Genomics in 2012 to provide prenatal genetic testing services. He is now also an Honorary Fellow at the Faculty of Veterinary Science, University of Melbourne.
Bill actively presents technical results at many international conferences including at The Ion World Tour in Singapore, Thailand and Taiwan.