MetricStream Senior Developer/Team Lead interview questions

It was organized in a hotel in chennai. I attended the interview for a plsql developer 1st Round - Technical. Questions were a little bit tough for me as the questions were a little on the not frequently used and the questions were like more for a DBA. I managed to answer confidently whatever i knew on the concepts asked and i also let the interviewer know that im no expert in the concepts she asked me. She also asked me on SQL tuning, which im good at. Although, i answered confidently, i was not very confident of clearing the round. But, then the interviewer just asked me to wait for the second round, right at the end of the first round 2nd Round - Manager Round - This was not so tough as not many technical questions were asked. The questions were more on the previous projects and experience 3rd Round - Director Round - There wasn't many questions in this round. Infact, director explained on the company history and its business. No technical questions. Only a few questions on willingness to relocate and the compensation expectation. I said a number to the director and infact he told me that he can offer me 1lac more. The first three rounds were f2f and was over within 90 minutes as i was an early bird for the walk-in. 4th Round - HR round - This was like any other HR round asking on the notice period, compensation, relocation, etc. I lasted around 5 min on phone. I am still waiting for them to release the offer letter. The HR round was done on 3rd Nov 2015 and im still waiting for the same. I can join immediately and just waiting for their call letter/offer letter.