Is it religiously permissible to work on freelancing platforms where the work is delivered before receiving payment, then the amount is transferred to a bank account affiliated with the platform, and then withdrawn, arriving after two weeks?

Leasing described usufructs (manāfiʿ) in a Dhimma (liability/responsibility) is valid, and it is not a condition to pay the rent immediately at the contract session if it is not made with the صيغة (wording/formula) of Salam (advance payment contract). It is permissible in leasing described usufructs in a Dhimma to pay the rent in advance, in installments, or to defer it.