At a steel factory dwarfed by the adjacent Auto Club Speedway, Fernando Esparza is working toward his next promotion.

Esparza is a 46-year-old mechanic for Evolution Fresh, a subsidiary of Starbucks that makes juices and smoothies. He’s taking a class in industrial computing taught by a community college at a local manufacturing plant in the hope it will bump up his wages.

It’s a pretty safe bet. The skills being taught here are in high demand. That’s in part because so much effort has been put into encouraging high school graduates to go to college for academic degrees rather than for training in industrial and other trades that many fields like his face worker shortages.

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