Cornerstone sells HR solution. But, hiring process is not professionalism. HR asked a lot of sensative business data then had a first interview in Jan 18, second interview with hiring manager was in March 18, third interview with presale head was in April 18. Cornerstone kept to ask the candidate wait for over 4 months without status update. I am doubt whether Cornerstone has real job opening or not. Personally, I will not consider Cornerstone again and will not recommend my friend to work for this company or suggest my customer to use Cornerstone. Overall, the hiring experience was extremely bad.