Xen Network has been designed by Jack Levin from the Fair Crypto Foundation. He is a software engineer and was an early Google Engineer between 1999 and 2005. He also founded other famous startups between 2005 and 2020 such as Imageshack and Imagizer
To do more research on the projects here are the official resources created by the Fair Crypto Foundation
It's important to note that the value of any cryptocurrency can fluctuate significantly, and there is a risk of loss when you invest in it. As with any investment, it's important to do your own research and carefully consider your risk tolerance before buying XEN or any other cryptocurrency.