We knew working at McDonald's wasn't the greatest gig in the world, but we didn't know it was this bad.

After 20 years cooking burgers and manning the fryer for the national chain, Tyree Johnson still makes just the minimum wage, Bloomberg reports. That's $8.25 an hour in 44-year-old Johnson's hometown of Chicago, where he works at two different McDonald's restaurants.

The CEO of McDonald's, Bloomberg points out, made $8.75 million last year.

In an emailed statement, a McDonald's spokesperson pointed out that the majority of the company's restaurants are independently owned. "We value our employees’ well-being and the contributions they make to our restaurants, and thank them for what they do each and every day," wrote Cheryll Ocampo Forsatz.

Johnson is not alone. Other fast-food and retail companies offer fairly low wages. Walmart caps annual raises at 60 cents per hour at most, according to internal documents reviewed by The Huffington Post. Walmart also keeps many of its hourly employees part-time so that it does not have to give them an array of benefits.

Restaurant jobs have been booming, and the service economy more broadly is growing, but these jobs do not pay well. Food service workers were paid an average of just $18,130 in 2010, and retail sales jobs on average paid $20,990 in 2010, according to the Bureau of Labor Statistics.

Underemployment still is rampant. 14.4 percent of American workers were unemployed, marginally attached to the workforce, or working part-time despite wanting to work full-time in November, according to the Bureau of Labor Statistics.