What is the ruling on working as a gold salesperson for a monthly salary, given the presence of deferred payment sales transactions in this field?

It has been previously stated that selling gold for money on credit is forbidden. Therefore, you are not permitted to work with the person you mentioned, because whoever aids in sin is a partner to the one who commits it. Allah Almighty said: (And cooperate in righteousness and piety, but do not cooperate in sin and aggression). It is authentically reported from Jabir ibn Abdullah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, "cursed the one who consumes Riba (usury), its payer, its scribe, and its two witnesses," and he said, "They are all equal."