I'm a brewer at wellington, and only a casual lurker of this board.
I can tell you with some certainty that we do not have any openings at the moment, but certainly keep resumes on file. Sucks that it's getting colder, and into the slow part of the year, but with the expansion we are working on there might be something opening up. Usually people here get hired as event staff, then fill in a few shifts in the back for safety purposes or Packaging shifts. From there they might get offered a full time assistant brewer job. We havn't hired a brewer specifically in the past 4 years (myself being that last one) . Usually people just work their way up as jobs open up, if you are set on being a brewer. There are plenty of other jobs out there though like sales, drivers, logistics, packaging etc....
I'd def try asking Block Three, or Innocente if you are in KW. Not sure about Grand River, but that may be a little far.
I'm also in Kitchener. Hit me up, we can go for a beer sometime.