Jason Kowalewski, Senior Director of Engineering at Snagajob — The largest marketplace for hourly work in the US — leads the effort to build a new search and recommendation platform that will better match the right workers with the right employers. The project makes extensive use of elasticsearch, learning to rank, natural language processing, and other machine learning techniques. Before his time at Snagajob, Kowalewski was an active player in the Washington DC startup scene, creating and working with companies to solve problems using predictive analytics, data management platforms and other advertising technology solutions.