Beijing: It’s after 10pm on Thursday evening and Mu Jie has clocked off after 13 hours of delivering groceries across Beijing on his electric scooter.

He made 65 deliveries in that time, zipping through traffic to beat red lights, racing on foot through apartment complexes and, when there were no elevators, climbing as many flights of stairs as it took to hand over the groceries in person.

It’s punishing work, and Mu’s daily earnings typically don’t top 400 yuan, or little more than $1.20 an order. In the past month, he’s averaged 85 orders a day, with six days of 100-plus deliveries. He took one day off.

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