Pros
Qualtrics is a great place to work if you're passionate about what you do, are driven, believe in Qualtrics' mission and their optimism, and want to be an engineer. They pall fairly well, have a cool building, lots of perks, and there's a lot of excitement around what's going on there. As a part-timer, it's flexible on hours.
Cons
The company is incredibly full of itself. I get being optimistic, but they seem to think they're God's gifts to tech startups and that their very presence is a favor to planet earth. I get that you're successful, but this culture is a bit extreme. My personal experience hasn't been the best. I'm there part-time, and frequently feel disconnected from the rest of my team, what we're doing, etc. My onboarding process was terrible, and I didn't know very fundamental things about our engineering stack several months in. There are still big things that I feel like I don't really understand, and I have been there for a while now. Communication was virtually non-existent between myself and my team much of the time. I also am constantly switched to new contexts and don't feel that I can get a good grasp on anything before I'm moved to a different piece of the product. A lot of these pains came just because I was there part-time, but it was nonetheless not a good experience.