Pros
Our mission is hugely motivating - we work on solving real problems at some of the world's most important institutions. And from top to bottom, we care about actually improving the way those institutions operate, not just making a sale or impressing the CEO. There's a ton of individual freedom to operate. I've seen new people take on tremendous responsibility within their first year at Palantir. The people here are some of the smartest that you'll ever work with.
Cons
A lot of the institutional connective tissue at Palantir exists in the form of relationships and trust among Palantirians who have been in the trenches together. This is effective and valuable for those people (among which I include myself), but makes it more difficult for new hires to navigate the organization and get a clear view of what's going on across the company.