I started off career in SB. Was there for 2 yr+. Did well in my performance reviews, was promoted once but left to try out pte sector

Now I'm 35 and a friend who is a director is recommending me a job in his SB (not reporting to him though). Title is AD. Managing just 2 other managers.

Thinking about it for job stability and lesser traveling commitments

I'm on $8.3k pm now. Bonus + AWS around 5 mths or more depending on company profit.

Do you think it is possible to ask for 15%-20% increment? my pte sector exp is relevant to the role. In addition I also have some exp in the paper writing etc required in SB.