Is working in a usurious bank, without dealing with interest or loans, considered unlawful if it is limited to technical computer matters, especially given the lack of an alternative and the need to provide for one's family?

Consuming and dealing with usury is among the gravest major sins forbidden by the Qur'an, Sunnah, and scholarly consensus. It is obligatory to cease working in usurious banks, because whoever assists in usury is a partner in sin. It is permissible to work in Islamic banks if they adhere to Shariah guidelines, bearing in mind that the occurrence of some Shariah violations by some Islamic banks does not equate to or even approach what usurious banks do. Dire necessity permits working in a usurious bank if no other permissible work is available and there is no one to provide for the person and their family.