Experience with cloud hosting and setting up and managing instances.
Should be able to handle extremely large pool of web servers with typical web stack management experience
Proficient understanding of Linux administration and tools.
Previous experience with any configuration management tool is an added advantage (Puppet, Chef, etc.)
Strong knowledge of a scripting language such as PHP, Python, or Ruby.
Experience with AWS
Knowledge of best practices and IT operations in an always-up, always-available service.