Charles is currently Head of Operations at Altiscale, a Hadoop platform-as-a-service company. Prior to joining Altiscale, Charles was Site Reliability Engineer at LinkedIn in their web operations team, managing their Apache Traffic Server and HAProxy. Prior to LinkedIn, he was a Principal Service Engineer at Yahoo!, where he ran tens of thousands of nodes in some of the world’s largest Hadoop clusters. He has experience in all aspects of large-scale technical operations—from network to storage to distributed systems. Charles has spoken at Hadoop Summits and Big Data Camps on the subject of Hadoop operations.