Medidata Solutions Software Developer interview questions

A phone round to check the skills & your background with few technical questions. This was followed by an onsite interview, which had 4 rounds with 2 managers & 2 software engineers. 1st round with hiring manager gave a palindrome ques on white board. 2nd round database round gave a long complex sql query on white board. 3rd round was with another manager who scanned through the resume & asked about the technologies worked on in details, he also had a few oral data structures questions. 4th round was a complex problem to solve with data structures of my choice, it was probably to check my approach, interviewer was equally involved in it & again it was white board. 5th interviewer wasn't available that day & I got an early leave. Seemed like everything went well, I was hoping to get a positive response out of it. However, I haven't heard from the HR yet. Its been 2 weeks, they should at least get back with the response, whatever it is. The interview exp was really good, good environment, smart people, great location. The only drawback I would say is the HR not responding properly to the interview process.

Phone interview through conference calling, After a short interview (more of a walkthrough process) it became obvious the skills they wanted did not match my interests and discussions about alternate technical solutions were not appropriate. There was second interview scheduled but the person didn't show up at the call, waited for him and then dropped a mail to hr , she took 3 days to get back to me with a NO.