Irvin Lemus, CISSP is a Cyber Range Engineer at By Light IT Professional Services, training military personnel through international cyber security exercises. Irvin has been in the field since 2006, involved with cybersecurity competitions since 2015 as a trainer, coach, and mentor. He also has taught IT and Cybersecurity courses at Coastline and Cabrillo Colleges. He is the BACCC Cyber Competitions Regional Coordinator, Board member at Pacific Hackers and is a speaker at DEFCON. He describes himself as, "A professional troublemaker who loves hacking all the things."