RTEST 2018 was held on May 9-10, 2018 at the University of Tehran (College of Engineering), Tehran, Iran. RTEST aims at bringing researchers in the fields of real-time and embedded systems and related research areas, from both industry and academia together. This event was held as a national-only event from 1995 to 2014. Starting from 2015, RTEST became a successful international symposium and the 2018 edition accepts only submissions in English.