An outdoor festival lives or dies on its sound, and booking the engineer who runs it is one of the riskiest hires an organizer makes. Outdoor audio is unforgiving, wind, distance, and no walls to contain the mix, so an engineer who is great indoors can struggle in a field. Hire the wrong person, or hire the right one without locking the scope and fee, and you find out on the day, when it is far too late to fix.
The deeper problem is uncertainty on both sides. You cannot easily tell who has genuine outdoor experience, the scope of the job is often vague, and the fee is frequently a loose verbal figure that gets disputed after a long, exhausting day. The engineer worries about being paid for serious technical work; you worry about whether they can deliver under open-air conditions. Neither side is protected.
So the question is not just how to find a sound engineer. It is how to find one with real outdoor experience, lock the scope and fee before the date, and pay in a way where both sides are protected, so the most important hire of the festival is also the most certain.

