Dr Andrew Brown is a principal consultant at expleo. Recently, he has developed an independent line of research into understanding why we humans make the mistakes that lead to software defects. He has spoken at several conferences on this subject and was winner of the EuroSTAR 2017 best paper award for a tutorial on cognitive biases in testing. He has 25 years’ experience in the software industry. Previous roles include Heading up QA at HMV, Head of QA at a financial software house and a test manager in Japan.