Sébastien Dan is a seasoned technology professional currently serving as a Staff Software Engineer at Polygon Labs since May 2024. Previously, Sébastien held the position of Chief of Staff at Toposware, where contributions focused on fostering a strong company culture and team collaboration, alongside experience as a Senior Full-Stack Software Engineer responsible for developing advanced blockchain solutions. With a background that includes leading roles at Ascent Robotics, Latona, and Ubisoft Montréal, Sébastien has demonstrated expertise in crafting web-centered tools, ensuring product readiness, and developing critical reporting tools for game production. Early career experience includes impactful roles at 株式会社 SQUEEZE and Lumini, along with project development for major French banks at Sopra Banking Software. Educational qualifications include a Master of Engineering in Chemical Engineering and Computer Science from ENSIACET.