Eleftherios Peslis is a Principal Enterprise Networking Engineer at SmartNS Technological S.A.. Colleagues describe him as "An excellent instructor that can make the learning process fun and easy. Sessions with hands-on labs with deep theoretical level helped me to understand each semester technologies." and "One of the most significant instructors that I studied under, and my personal favourite. He contributed to my knowledge development remarkably, and guided me to evolve both professionally and personally. I am grateful for your meaningful support and brilliant teaching."