Textbook technical interview, all questions are to be expected. I mentioned this below, but be sure to be rock solid on your basic data structures and algorithms (trees and tree traversal, arrays, heaps, linked lists, hash tables, O-notation... you name it). This is a very fair interview that you can completely own with enough preparation. That being said, I had a net negative experience. I'd think that how a company treats its interviewees is indicative of how it'd treat its employees, and compared to how other similar caliber companies will treat a potential tech hire: TA's not great. Remember that if you're a qualified candidate, the company's not just interviewing you, but you're interviewing them. Take a look around (though they won't give you a tour), get a feel for the culture. Most importantly, ask questions of your interviewer and gauge their personalities. See if these are people you'd really want to work with before making a decision. And if the company treats you poorly or is unfair to you, take note and move on.