Ubisoft Senior R&D Engineer interview questions

I had through Linkedin and got a call for the interview. I was told that designation would be decided later. I was asked about my expected salary (X say). Completed 3 Technical rounds, all DS+Algo+Cpp Fundamentals combined. Some general logical questions like "How will you store the information of players and constantly keep updating it vs an object which would mostly be stationary". Finally I was offered R&D Engineer with X - 5 lacs. the technical interview process took 3-4 days, whereas salary negotiation is taking more than 2 months. Anyway I wouldn't consider whatever they might come back with.