El Sayed has been with Sheridan as a professor of Applied Computing since 2013. During that period, he taught introductory and upper-level undergraduate courses in computer science. El Sayed also supervised students in completing their theses and led Artificial-Intelligence(AI)-based research projects as an active principal investigator at the Centre of Mobile Innovation (CMI). He has also been involved in curriculum development and led the collaborative effort to develop the program proposal for a new Honours Bachelor of Computer Science degree that has been approved in Jan 2020. Furthermore, El Sayed participated on many committees, including the Sheridan Senate; Local Academic Council of Faculty of Science & Technology; Scholarship, Research, and Creative Activities Committee.

Before joining Sheridan, El Sayed completed his graduate studies at the University of Guelph in Computer Science and received his MSc. and Ph.D. degrees in 2008 and 2013. Before his graduate studies, El Sayed occupied several professional positions in Applied Computing and post-secondary education industries for 15 years. After completing his undergraduate degree in Computer Engineering in 1991, El Sayed worked as a software developer at ECS (a software company in Egypt). Three years later, he became a computer instructor at AICT, a multi-location computer institute that carries certified partnerships with Microsoft and Edexcel in the Middle East. There, El Sayed was promoted to Branch Manager to manage a two-year computing diploma program, and he taught various computing courses. El Sayed achieved Microsoft-certified trainer status and was promoted to Regional Manager. He successfully managed the two-year diploma program and taught computing courses on several campuses of the AICT.

El Sayed has researched Artificial Intelligence since 2006. His research focuses on developing robust AI-based systems that provide innovative solutions for health and business applications, including Big data, data analytics, machine learning, mobile cloud computing and social networks. His Engineering, Computer Science, Artificial Intelligence, and Business experiences significantly support his multidisciplinary research projects' breadth and depths. El Sayed published many peer-reviewed papers in various international journals and conferences..