When Harry Sentoso got called back to work at an Amazon delivery center in Irvine, Calif., in late March, he was excited.
He had been working in Amazon warehouses on and off for two years, always hoping to get a full-time position but always laid off after seasonal demand died down. Just a few weeks earlier, at the beginning of March, his bosses had told him they didn’t need him anymore. He had spent most of the month cooped up at home in Walnut, looking for other work …
