Does my work as a lawyer in a company that buys raw materials or machinery for clients and pays their price with interest-bearing deferred payments, and buys and collects debts, fall under the suspicion of usury?

It is not permissible to work for the aforementioned company as long as its operation is based on paying the price on behalf of the buyer and collecting it from him with interest. This is because such a transaction constitutes prohibited usury (riba), as the reality of the transaction is that the company lends the buyer the amount of the price with interest, and every loan with interest is usury. Furthermore, buying and selling debts to anyone other than the debtor is forbidden according to the majority of scholars, especially if the debt is cash and the price is cash, due to the resulting riba an-nasī’ah (usury of delay). However, if the company has permissible activities, there is no harm in working for it in what is permissible. The officials there should be guided to Islamic alternatives such as murabaha (cost-plus sale).