Defekt
Novella Recommended by 4 award/anthology sources
Derek is LitenVärld's most loyal employee. He lives and breathes the job, from the moment he wakes up in a converted shipping container at the edge of the parking lot to the second he clocks out of work 18 hours later. But after taking his first ever sick day, his manager calls that loyalty into question. An excellent employee like Derek, an employee made to work at LitenVärld, shouldn't need time off.
Quasar links out; the story lives on Tor Novella, where the author gets the click.