After uploading my resume and solving the puzzle I had requested, I got contacted by a recruiter through email. After two weeks, the recruiter interviewed me over the phone to learn about my interests. Then, in about two weeks, I had my phone interview. I was asked a question on comparing two general tree data structured. I answered the question and wrote the code correctly in the given space/time constraints. A week later I was contacted again and invited for on-site interview. However, the timing was not good and they said given my status (that I need an H1B), and current cap, they cannot move forward with the interview. The whole experience was smooth and exciting. I was just not quite lucky with the timeline.