Is the salary and percentage of profits received from working in a company that deals with commercial banks halal?

If the company's dealings with banks involve depositing with interest, it is unlawful (haram). If it is without interest, it is permissible when needed. Based on this, it is permissible to work for the company and invest in it if its dealings with banks are limited to depositing without interest. However, if the dealings involve depositing with interest, it is not permissible to work in anything related to usury (riba), nor is it permissible to invest unless the company has a permissible department that does not deal with usury. The salary must be known and fixed, not a percentage of the profit, unless the worker is a Mudarib (investor) with the company's funds.