11/10/2026 updated
Premium member
100 % availableSenior OpenShift Consultant
Dongo, Italy
Worldwide
MEngAbout me
Sebastian is specialized in Linux, Docker, Kubernetes, Github, Red Hat Ceph, OpenShift, OpenStack, and AWS cloud services. He is also helping customers to create and maintain CI/CD pipelines using Github Actions, and GitOps ArgoCD (for both application deployment and infrastructure management).
Kubernetes SecurityUbuntu (Operating System)Debian LinuxLinuxDisaster Recovery PlanPostgreSQLOpenShiftOpenStackRed Hat Enterprise LinuxVirtualizationBackup and RestoreCeph (Software)Docker ContainerDocker SwarmKubernetes
Sebastian is specialized in Linux, Docker, Kubernetes, Github, Red Hat Ceph, OpenShift, OpenStack, and AWS cloud services.
Sebastian has successfully deployed Red Hat Openstack Platform with SR-IOV and DPDK functionalities as well as Red Hat Ceph Storage and Red Hat Openshift Container Platform in HA production environments (including 5G telco deployments).
Sebastian combines his work as a senior consultant with training delivery and teaches the official training program for Docker and Kubernetes: CKS (Certified Kubernetes Security Specialist), CKAD (Certified Kubernetes Application Developer), CKA (Certified Kubernetes Administrator) and DCA (Docker Certified Associate).
Experience
Professional experience10+ years
Freelancer since2007
Languages
GermanGoodEnglishNative speakerItalianGoodSpanishNative speaker
Project history
Senior OpenShift Consultant helping customers design, deploy, configure, migrate, and upgrade OpenShift platforms. Experienced in installations on bare metal, AWS, VMware vSphere, Red Hat Virtualization (RHV), and Nutanix, using both installer-provisioned infrastructure (IPI) and user-provisioned infrastructure (UPI).
Experienced in deploying and configuring Ansible Automation Platform, OpenShift GitOps with Argo CD, Helm charts, GitHub Actions, Red Hat Advanced Cluster Management for Kubernetes (ACM) hub clusters, and Red Hat Advanced Cluster Security for Kubernetes (ACS).
Also experienced in installing and configuring Ceph storage and OpenStack cloud platforms, including performance tuning with SR-IOV, DPDK, hardware offloading, CPU pinning, huge pages, and NUMA-aware configurations.
Holds Red Hat certifications, Certified Kubernetes Administrator (CKA), Certified Kubernetes Application Developer (CKAD), and Certified Kubernetes Security Specialist (CKS) certifications, and the Kubestronaut designation.