Roman Mueller IT-Consulting offers you professional IT services.

I’ve used to be a Linux Systemadministrator. Nowadays I work full time on IT-Security.

I’m currently not interested in acquiring new clients.

In my past projects I was involved in the following tasks:

• Installation, maintenance of Linux servers (mostly CentOS)
• Multiple datacenter migrations
• Deployment of a ESXi virtualization infrastructure
• Automating system deployments with CFEngine and Puppet
• Deployment of a management network
• Creating RPM packages of internally developed software
• Maintaining Stingray load balancers
• Planning and deployment of a highly available DNS service
• Taking part in 24/7 On-Call
• Maintaining multiple MySQL and PostgreSQL databases
• Creating new Xymon and Icinga checks
• Maintaining katta search clusters
• Operating Hadoop clusters

I have obtained the following certificates: MCSA, MCITP, CEH, CompTIA Security+ and OSCP.