My wife works for a U.S. investment bank in...

We would like to inform you that the contract signed by your wife with the employer is determined by the nature of the matter and the legal position, so it is necessary to refer to it, knowing that if the contract stipulates moving and there is a branch office for the employer, yes, it is possible to move to work in Dubai for this period.
And the matter is related to what was stipulated in the work contract, otherwise it is illegal