Why you need motivation? If you don't find a job you're gonna get to the streets. If you want to work at a tech company, then solve leetcode questions. No motivation needed.
There is already something motivating which is working at a tech company. If you don't want to work at some other field and only at tech, then do what is required. Might be that he doesn't think ahead and see what he becomes if gets into tech again, which is the primary motivation.
If he isn't motivated already then there is something deeper.
