I applied online. The process took 1 week. I interviewed at Crossover for Work (Guadalajara, Jalisco) in Apr 2018
Interview
It takes time to complete the entire selection process, first you have to submit an English Proficiency test and then move to technical questions, the overall time for all of those tasks is about 3 hours, so make sure you have the time to complete them, once you start because they are time limited.