Stuart de Jong switched from writing computer software to writing fiction full time in 2023. His debut novel Simon's Run and Other Adventures—a humorous biographical fiction book about a guy with a personality eerily similar to the author's—was published a year later. His next publication was the novel Assassin Lab that was the first installment of the sci-fi thriller/crime book series called Designer Mercenaries.

Stuart lives in the Seattle area with his wife and three pets. When not writing, he might be found on the road, RVing the western US, or working on a project around the house.