Is it permissible to work for a company that sells machinery, where the bank pays the company the price in cash and then charges the buyer installments with interest, and my role is to submit the files to the bank and collect the payment?

If the bank lends customers the price of machinery and sells it to them in installments with interest, this is forbidden usury (riba), and the company is not permitted to enter into this transaction if it knows its true nature. Nor is it permissible for you to collect those payments, as this constitutes aiding in sin. However, if the company is unaware of the true nature of the contract between the bank and the buyer, and is merely referred to them for the price, then there is no harm in that. And if the company genuinely sells the machinery to the bank, and then the bank sells it to its customers, this is permissible.