As part of the Qumu Cloud team, i'm responsible for the design, implementation and ongoing administration of the Qumu Cloud platform to deliver video services to enterprise customers. My manager in Qumu wrote the following about me:"When Stefan is not working on Cloud Services initiatives, you might find him spending time with his family, working on personal technical projects, or shooting/editing photography especially outdoors. He’s not a big fan of American beers (too sweet), but you can win him over with a thick, grilled steak any day J"

As part of the SRE team, I am responsible for making sure that the CF network is running smoothly today and that it's prepared for growth tomorrow.I gained a lot of experience with, but not limited to:- UDP and TCP attack handling- Networking: Juniper MX and EX models, Pluribus- Scripting: shell, python, perl, PHP, GO- Configuration management: salt- Webservers: nginx- Databases: OpenTSDB, Postgress, KyotoTycoon- Virtualization: KVM- Monitoring: nagios, muninThe CF guys were super nice to write the following about me:"Stefan loves to travel, especially if it involves doing 140 mph down a German autobahn. He started his career as a remote technician for a US data center while a university student in Romania—since then, he’s been on the move. Stefan has lived in the Czech Republic and Germany, and his roles as support engineer and system administrator required him to crisscross Europe several times. As part of the CloudFlare team in London, he’s taking every opportunity to explore the UK. If Stefan isn’t in front of his laptop you might find him atop the Dover cliffs, or, in the unlikely event that he’s home for a weekend, grilling up a steak in his garden."

I am responsible for buying, installing, configuring and maintaining more than 100 servers handling approximately 13 million customers. The achieved uptime for the last 12 months is 99,999%.I gained a lot of experience with, but not limited to:- HW Load Balancers - AX2500 (A10 Networks)- Web Servers - nginx and apache.- Scripting languages - php, javascript- Databases - Percona MySQL, mongodb- Virtualization technologies - XEN, VMWare vSphere- Monitoring tools - munin, icinga, nconf, newrelic, pingdom

I was involved in supporting/deploying/upgrading the SMSC servers for most of the EMEA mobile operators. I gained a lot of experience with, but not limited to: - HW Load Balancers - Cisco CSS 11500 family - Cisco Switches - L3 - 3750 and L2 – 3120 - Console Routers - Cisco 2509 and 2511 - SAN - HP SAN Brocade switches, EVA 8400/6400, HP Disk Enclosures - SS7 protocol (M3UA/SUA) CISCO devices configuration, mainly using the Cisco ITP - 7301

I was involved in supporting/deploying/upgrading the AIX servers for some of the biggest IBM's clients. One of them was Deutsche Bank.I gained a lot of experience with, but not limited to: - Web Servers – Apache - Email Servers – Postfix - Email Clients - Lotus Notes/Symphony - Service Management - Tivoli (Desktop and Console), CMOG/PMOG/OMOG, CITRIX, ATLAS, Jupiter, Knox The support was offered for: AIX and SUSE Linux both clustered and standalone systems.

Responsibilities and achievements:- Supported more than 1,800 customer Linux and FreeBSD servers in our own data center- Maintained 25 corporate servers running Red Hat Enterprise Linux and Sun Solaris- Maintained 39 VPS host servers running Virtuozzo, User Mode Linux, and FreeBSD jails- Resolved problems in Apache, BIND, Exim, Qmail, Postfix, ProFTPd, and cPanel/Direct Admin- Developed shell scripts in Bash to automate complex and time consuming tasks- Performed security maintenance on corporate and customer servers- Developed technical documentation and knowledge base for company and clientsI believe that during this job I optimized my customer approach and English skills.