How people search for and match to jobs reflects how well the labor market is functioning for both workers and employers. Frictions that inhibit effective, efficient searches and matches can lead to worse outcomes for both. New search technologies, including online platforms assisted by artificial intelligence, could improve search and matching but raise questions about their equity and effectiveness. And understanding how switching jobs and occupations affects workers’ career paths and economic trajectories is also critical to improving mobility. WorkRise generates evidence on and elevates our understanding of how job search and matching processes and platforms can limit or facilitate economic security and mobility.