I worked with Sean at a very large insurance company where we were standing up one of the largest private networks in the United States. He exhibited an amazing depth of knowledge in routing, switching, hardware, various operating system platforms, every network connected device we discovered. He frequently provided subject matter expertise for training sessions our company provided to the customer. Sean is an absolute professional and team player. He was always more than willing to teach, mentor, or just help out when needed. I would be comfortable and happy to recommend Sean for any type of position.