Jarsto has been playing with code for a quarter of a century now, having started at 11 years old. Despite studying law he eventually saw sense and turned his hobby into a career. He now works as a Specialist Test Engineer at DUO (part of the Netherlands' ministry of Education).

At work he is active in the Automation Serviceteam - developing internal tools, helping and teaching colleagues, and looking critically at what should and should not be automated - as well as taking on testing-related matters that affect the entire organization, coordinating with specialists from other DevOps disciplines, and advising management as needed.

In his free time Jarsto is mildly obsessed with world history, science fiction and fantasy, and all sorts of technology he doesn't get to play around with at work (yet). Somehow he never has the time to watch as quite many movies/series, read quite as many books, or play quite as many games as he thinks he should.