Dr Khan is currently working and researching requirements engineering, CrowdRE, argumentation theory, feedback analytics, mining software repositories, Human values for SE, sentiments and opinion mining, empirical software engineering, health informatics, and requirements prioritization. He has completed his PhD from the Department of software engineering, Tsinghua University, P. R. China, under the supervision of Professor Lin Liu. He is a Senior Lecture in the Computer Science department, Foundation of Software Engineering Group (FSE), University of Hertfordshire, UK. Previously, he worked as an assistant professor in the software engineering department at, university of Science and Technology Bannu, Pakistan.