Sagi 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 with Amit Bareket, after transforming SaferVPN, a consumer VPN, 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 and worked as a software developer for Imperva. He holds a B.Sc. in Computer Science and Economics from Tel Aviv University.