Do I have to prepare Data structures or OOAD?

Question

hi all,

I have 10 years of asp.net experience, I am a senior software engineer now

since there is no enough learning in my professional job for the past 4 years(still using forms), I am looking for a job change.

I have learned asp.net core, angular, and azure by myself built few apps. I am good in oop too, but I frightening about data structures and algorithms because I am not aware of new dynamic programming concepts.

Do I really need to spend time learning data structures? Will interviewers really ask coding interview questions for experienced developers?

note: I am interested in a tech lead or architect role in Saas based start-ups.