Thomas Lunkwitz has been working for METRONOM for sixteen years now. He grew up as a network specialist for WAN and LAN. In 2014 METRONOM started a project to evaluate OpenStack, to see whether it could be a solution to provide an internal IaaS in competition to public cloud providers. He joined this team as a network specialist at first and while OpenStack moved its status from a project to a product, Thomas became the product owner of “Compute Cloud”, the private cloud product within METRONOM. Together with his team, he is currently operating six OpenStack environments with CEPH storage backend. METRONOM is using pure open source and as part of the cultural change, they will increase their contribution to open source projects.