بسم الله الرحمن الرحيم
(Fatwa: 1111/856/D=9/1434)
It is unlawful to do the job of writing or documenting the interest accounts and dealings. You should avoid doing job in bank if your job involves such kind of work, but if there are other works related to you then it is allowable.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
