Sagi Gidali, Co-founder and CPO of Perimeter 81, is a serial entrepreneur who creates, scales and optimizes new SaaS solutions. As a UX/UI leader and expert designer with over 15 years of experience in the field, he has also worked for Siemens as a UX consultant. He holds a patent for the security of public WiFi networks. Perimeter 81 is Sagi’s second venture after transforming SaferVPN, sold in 2019 to J2 Global, from a bootstrap startup to a self-sustained business. In SaferVPN, Sagi led all the product, marketing, and design aspects of the service. Sagi served in the IDF's elite visual intelligence unit (Unit 9900) and worked as a software developer for Imperva. He holds a B.Sc. in Computer Science and Economics from Tel Aviv University.