Apart from PO, you have the clerkship profile to work in different banks. You can for IBPS Clerk or SBI clerk examinations. Now there is also RBI grade B officer post in which the sole purpose is to  management of accounts, circulation and issue of currency, etc.

Also you have NABARD A & B officers. National Bank for Agriculture and Rural Development(NABARD) is one of the top financial institutions in India. NABARD Grade-A & B are managerial posts. Both the posts have a lot of responsibilities that include approval of various loans, keeping an eye on the flow of credit in the Agriculture sector, etc.

You can also go for RBI Assitant which includes data entry, regular balance tally, ledger maintenance, etc.  NABARD Development assistant responsibilities  include but are not limited to Policy issues, research and analysis of data, etc. This job doesn’t involve any public dealing or high work pressure.

These are some of the jobs in Banking sector other than BANK PO.

I hope my answer helps. All the very best for your future endeavors!