Need suggestions

I have recently been interviewed for Business System Analyst position. Currently working at T-Mobile and planning to switch. Need some recommendations. I haven’t received offer yet but I am positive. Is this a good company to join ? Is BSA an entry level position. My current title is Sr Analyst and I feel atleast I should ask for Sr BSA title and min 20-30% hike in salary if I get an offer. What you guys think ? Can anyone please suggest?