The days of Angel Hernandez makin' you pull out your hair may soon be over ... 'cause Major League Baseball is instituting robot umpires for the 2022 Triple-A season -- moving one big step closer to an eventually automated strike zone in The Show.

MLB let the cat out of the bag on the plans this week ... posting a notice on its website seeking seasonal employees to operate the automated ball-strike system at the highest level of MILB.

According to the Associated Press, 14 teams will be looking to fill openings at their respective ballparks.