Applied online, got a call from Neustar parent company a 2-3 days later who explained what the company does and what's the expected pay for the position (really low, way below industry average). Still took a chance and interviewed because the hiring manager was very nice and kind. We had a great chat and he sent me a link for a online coding challenge. Finished the challenge and had another technical interview with an engineer. The engineer was very impatient from the beginning and had a temper for what he considers "slow" coding. Not helpful whatsoever and the sentence that came out of him most was "make it work." And when the code did work he actually sounded surprised and repeated to himself, "Oh! It works." Overall a very horrible interviewing experience. Absolutely unprofessional and very rude to the interviewee. The quality of a company really reflects on the quality of its engineers and I feel like I already have a great sense of what this company is like.