What is the ruling on working for a company that is a partner to an interest-based bank, and on carrying out projects for interest-based banks when it is not possible to refuse, fearing dismissal, and what should I do in this situation?

Working in an institution that is a partner to an interest-based (ribawi) bank is permissible, according to the more preponderant opinion, as long as the work itself is permissible, even though it is better to avoid it. It is forbidden to execute projects related to interest-based banks or any prohibited activities, because that constitutes cooperation in sin and aggression. If you are not executing prohibited projects, there is no sin upon you, and it is advised to seek another permissible source of income. If you are asked to execute a prohibited project, you must refuse, even if it leads to dismissal, unless you cannot find another permissible source of income; in that case, it is permissible to remain for the duration of necessity while diligently searching for an alternative. The salary in this case is not problematic, based on the permissibility of selling something that aids in disobedience, despite the sin.