Julien focuses on helping developers and organizations bring their ideas to life. He frequently speaks at conferences and he also blogs at https://medium.com/@julsimon. Prior to joining AWS, Julien served for 10 years as CTO/VP Engineering in top-tier web startups where he led large Software and Ops teams in charge of thousands of servers worldwide. In the process, he fought his way through a wide range of technical, business and procurement issues, which helped him gain a deep understanding of physical infrastructure, its limitations and how cloud computing can help. Last but not least, Julien holds all eight AWS certifications.