Jonathan Bell joined George Mason University in 2015. He teaches and directs research in Software Engineering and Software Systems. His research makes it easier for developers to create reliable software by improving software testing. He has published 18 peer-reviewed papers on software testing and analysis, winning two Distinguished Paper awards (VMVM at ICSE 2014 and HitoshiIO at ICPC 2016). He is also the recipient of the NSF CAREER award. He teaches courses in distributed systems, web development, program analysis and software testing.