Option 1 : inform your country embassy they will contact (depends on their dedication) jawazat and send your detail (if they are not busy) to you, which is a time taking process .
Option 2: contact any of your known person to contact your previous employer directly/ personally to have your information (Sure and easy shot).
Option 3: Contact someone in KSA who knows or have saudi friends in jawazat then you can have your information easily, you will never find your information in local servers as they delete all information after your exit. specific servers/ muqeem have your information which is accessible by some specific arabic staff (it is a easy process believe me, you will find some one definitely who will do this job for you so contact ur friends in KSA) .
Use your iqaama and passport number to get ur information