Summary
Sylvain Weber is a veteran entrepreneur and CEO with 14 years building mobile-first marketing and engagement platforms from Paris, best known for co-founding Fastory.io, which transforms campaigns with vertical video, games and lead-generation chatbots. He has a long track record of founding and scaling product-led startupsโKontest and Elegantt among themโhelping brands like Microsoft, Samsung and PlayStation run high-impact social and mobile activations. Early experience at Google as an HTML5 rich media specialist and at Dailymotion gave him deep technical fluency in web standards, ad tech and high-performance front-end systems. Sylvain blends hands-on product instincts with sales and agency-facing evangelism, securing significant revenue and adoption across Tier 1 advertisers. He also cultivates developer and creative communities (co-founding the Paris HTML5 meetup) and brings a creative performance background as a live video artist, which informs his focus on immersive experiences. Based in รle-de-France, he combines startup grit with proven enterprise partnerships to turn interactive ideas into measurable growth.
14 years of coding experience
16 years of employment as a software developer
Undergraduate degree (BAC S) Engineering Science, Undergraduate degree (BAC S) Engineering Science at Lycรฉe Lavoisier
Bachelor's degree (Licence Pro ATC) Digital Communication and Media/Multimedia, Bachelor's degree (Licence Pro ATC) Digital Communication and Media/Multimedia at University of Strasbourg
Degree (DUT SRC) Technical Communication, Degree (DUT SRC) Technical Communication at Universitรฉ de Haute-Alsace Mulhouse-Colmar
English, French