Stepful (YC S21) trains people for healthcare jobs and helps health systems fill critical staffing gaps. After training 30,000 students last year, they now work with 39 healthcare systems, including seven of the 10 largest in the US, and recently raised a $55M Series C. In this fireside, YC's @sdianahu sits down with co-founders Carl Madi and Tressia Hobeika to talk about how they saw a broken path into healthcare jobs and built Stepful to fix it. They share how the company grew from helping…