If you have a cushy job — one that pays, but involves minimal work — then you have a sinecure. "Because he was the brother of the CEO, he was offered a sinecure in the company: he showed up each day and collected a paycheck, but others actually did his work."
The noun sinecure comes from the Latin root words sine cura meaning "without care." It originally was used to describe a church position that did not include caring for the souls of parishioners, but that meaning is considered archaic now. The word is now usually associated with political appointments.