I absolutely cannot stand the only other tech in this company.

We are in a small company of less than 50 currently, but surprisingly we have a 3-person IT department: myself, another tech, and the admin/director. I've only been here a couple months. The admin is a cool chill guy, get along with him great and I can tell he likes my work and having me around. However, the other tech is just absolutely insufferable. He's been working here on-and-off (massive red flag #1) for close to a decade now, but aside from historical happenings within the company he doesn't know a damn thing for one. His IT background is "former user" and that's about it, so he has some working knowledge of the day-to-day applications used in our environment, but I've come to realize that his experience never got too deep, never made it past assistant-level, and it's all very surface level. He causes more problems than he solves, he instantly snipes all the easy 5min-max tickets while leaving all the complex shit for me to deal, even tho it should clearly be the other way around since I'm the new-hire at this place, but tbh I wouldn't trust his ability to solve those difficult problems anyways. A critical server has been down for a month now because he "isn't a Windows guy" but for some reason took it upon himself to do some updates to a multi-node Windows cluster and proceeded to fucking break everything. And of course they weren't VM, so no snapshots (not that he would have remembered to make them beforehand in the first place). Not only that, but he loves to seemingly *brag* to me about how pretty much everyone hates him here, and plenty of others have gone out of their way to tell me themselves. He's arrogant, smug, ego-driven, and treats people who haven't been here as long or longer than he has as if they are stupid right to their face. He constantly over-exaggerates issues and blows things wildly out of proportion. Just today he came up to me, hand held up to his ear, saying "well, im waiting for you to say it", expecting me to apologize to him about an issue that he thinks he's correct about but he's so clueless that he doesn't realize he is STILL wrong about it. I can tell my boss doesn't care for him too, and neither does HR, shit nobody in this building likes him, and yet just my luck he is here and I'm forced to interact with this annoying nerd day in and day out.