Employment contracts in Dubai

Hi All,

As HR Manager I currently sign all of the employment contracts issued on a global scale as part of a company group, however, an acquaintance has mentioned that this is not valid in one of our subsidy companies in Dubai as I am not a director in Dubai.

I have scoured many labor law notices but cannot find anything that states my signature (being in the UK) will not be valid in one of our.

Has anyone come across this issue?