Sir i am rehan i comming visit visa but company...

we would like to explain that According to the federal foreigners' entry and residence law and its executive regulations, the permit or visit visa is not allowed to be transferred to a work visa in in the private sector except for the following categories:
Engineers.
Doctors, pharmacists, nurses and medical technicians.
Agricultural experts.
Teachers.
Qualified accountants and auditors.
Technicians working on electronic devices and laboratories.
Drivers licensed to drive heavy vehicles and buses.
Employees in private petroleum companies
working without a work contract or work visa approved by the Ministry of Human Resources and Emiratization (Ministry of Labor) is illegal because it violates the Immigration and Residence Law.
A person who accepts a visa on a visit is illegally convicted as is the body that employs him, and the possible penalties under the Immigration Act may be imprisonment for a period of "not more than one month".
You will also be unable to file a complaint against the company if it has a violation of the labor law