I am a very experienced Level 2 judge in Magic the Gathering and I am wondering how do you go about becoming a judge for Key Forge?

Billy

There is no such thing.

I recommend tattooing "Judge" on your forehead to make it official. But, seriously, there's no official program for judges or anything.

It is my understanding that FFG usually employs a company that produces judges for their major events, at least at major events for their competitive LCG's. I don't know the specifics of how that exactly works or the feedback of how well that works, but I would hazard a guess that they will do the same thing for major Keyforge events.

Maybe they will announce something in the future.

Good luck to you Billy. I hope become the first official KeyForge judge.