Someone who is qualified at wine is a sommelier and someone who is qualified at coffee is a barista.
What do you call the equivalent of someone for tea?
Also, I'm thinking there might be a word buried in someone's culture, like Asia maybe, but I have not yet found it and I've been looking for a while now.
I don't think the word would be brewer as that isn't really specific to tea because you can brew many things. Nor an infuser for the same reason.