Alpine Reserve Jack Doohan: Where Has He Raced?

After Esteban Ocon's collision with Alpine teammate Pierre Gasly in Monaco, team boss Bruno Famin had some harsh words about his driver, saying that there might be some serious consequences. It is rumoured that Ocon could be dropped for the Candian Grand Prix and that Jack Doohan would step into the A5-24. But where has Doohan, the son of Grand Prix motorcycle racing champion Mick, raced before joining Alpine as a reserve?