Ask HN: What AWS cloud management service do you recommend for small companies?

We're looking into the option of moving to AWS, and would like recommendations for an affordable, yet solid cloud management service for a smaller size company. They'll need to manage nginx, php, autoscaling (if needed), and RDS. Basically fix things when they break in the middle of the night, change autoscale rules if needed, etc, with 24/7 phone support to help out with server problems. We don't need app-level help--just infrastructure and upkeep of servers and processes.

Our estimated spend will be around $1k-1.5k/m on AWS.