OpenStack engineer/infrastructure engineer - doing the DevOps thing

An OpenStack engineer may spend a lot of their time in the datacenter working with automation tools like Puppet, Chef, and Ansible. When OpenStack needs more capacity, the OpenStack engineer is responsible for racking, stacking, and wiring up the servers, ensuring the operating systems have the latest patches, and seeing that all proper OpenStack components get the proper configuration file values, permissions, and settings. Although the Certified OpenStack Administrator exam doesn't require test takers to understand specific values for configuration files (or how to upgrade existing services), OpenStack engineers most likely know how to do this inside and out—often finding themselves working on automation scripts to ease their daily responsibilities.