Stefan Schmidt

* Design/Operations/Maintenance network (BGP, OSPF, IPSec VPN, Firewalling, dDoS Protection, Switching on Juniper EX/MX/SRX) * Design/Operations/Maintenance datacenter IP fabric (BGP, IS-IS, IPSec VPN, Firewalling, Switching on Enterprise SONiC/FSOS) * Operations/Programming/Maintenance/Security custom Xen private cloud (python, salt) * Design/Operations/Maintenance/Security OpenStack (OSISM, kolla-ansible, Coordination of remote-hands) * Monitoring Prometheus/Grafana (Integration, custom Dashboards)

* Operation/Maintenance/Troubleshooting Kubernetes clusters (ansible kubespray) * Monitoring with Prometheus/Grafana (on k8s) * Operation/Maintenance/Troubleshooting CI/CD (Jenkins on k8s)

* Design/Installation/Integration/Maintenance/Support high performance web services for clients * Design/Operations/Maintenance network (BGP, OSPF, MPLS, IPSec VPN, dDoS Protection, Firewalling, Switching on Juniper/Cumulus Linux) * Operations/Maintenance custom Xen private cloud solution * Design/Programming/Operating custom gSLB DNS Backend * Maintenance/Support CDN edge node Operations

* Operations/Maintenance Paralells Virtuozzo private Cloud solution * Installation/Integration/Operations/Maintenance/Support customer online shops

* Programming/Maintenance/Support Registrar Level Domain Registration Robot in Perl * Operations/Maintenance/Owner authoritative DNS for >100k Domains * Operations/Maintenance/Owner loadbalanced iBGP/anycast recursive DNS Cluster with Lua scripting for ~1mio DSL customers and multiple datacenters * Programming/Maintenance/Support/Owner ISP IP-Accounting encompassing nationwide backbone in Perl/Python