Sean Roberts is a current OpenStack Board Director plus he works with all things related to OpenStack and Software Defined Infrastructure at Yahoo. He is co-leading the OpenStack community training project which aims to provide instruction materials for all OpenStack user groups. He has been leading the San Francisco OpenStack user group for the past two years. Over the last year, they have held over 45 meetings, have over 3,000 members, and 500 active members. As a result of his work with the user groups, he was 'promoted' to be an OpenStack ambassador.