1) You have to published an advertisement in local newspaper the recruitment.
2) After a certain time u have to apply to BIDA with all necessary documents for assurance of E visa recommendation in favour of foreign candidate.
3) After verification of all documents BIDA will send the E visa recommendation to BD embassy in living country of candidate.
4) Candidate has to apply to BD embassy in his country for E visa.
5) Within 15 days to his arrival you have to apply to BIDA to issues a work permit for the employee.