As many of DevOps'es, I started my career as a System administrator/Virtualization engineer. As a part of it, I was performing complete Citrix/Vmware application virtualization routine - Planning, Designing, Testing, Deploying and Support. At the moment I have residual knowledge in Virtualization and Windows system administration. But have not used it so much since I moved to DevOps area in 2016. I am more confident in Linux and I work with this on my daily basis. It helps me with my main activity with maintaining DevOps tools My competencies in this area are (from best to middle in each section): Clouds: My certificates: Certified Kubernetes Administrator (CKA) scince Jan 2020