Embedded Apprentice Linux Engineer (E-ALE) is a series of 9 seminars over 3 days: SCaLE 16x in Pasadena from Thursday, March 8th to Saturday, March 10th. Embedded Linux Conference in Portland from Monday, March 12 to Wednesday, March 14.
http://blog.oshpark.com/2018/03/07/embedded-linux-workshop-coming-to-pasadena-and-portland