Managing a server infrastructure in a fast paced environment like a start-up is challenging. You have little time for provisioning, testing and planning but still you need to get ready to scale when your product reach the tipping point. Amazon EC2 is one of the cloud provider that we use at TubeMogul. Within a growing infrastructure, monitoring over 500 servers across multiple region can be challenging. In this presentation we will go over the solutions we put in place to be able to monitor over 6000 services and 500 hosts in 4 different regions.