CTO at buser and Mathematician by IME-USP. Contributor to any Open Source projects, study focus is psychology and open source (and all distributed contribution ecosystem). My day job is to help leaders (managers) of engineering, product and data evolve professionally and get to where he planned to get (I am not anyone to define where the professional wants to get, I can help him understand where he wants to get) delivering much result for the company in this process, encouraging them to achieve their best professional performance.