Would it be wise to only apply for one position at a time or if you feel you are qualified; one can apply for more than one Aramco posting at one time? Are there any risks or detriments associated with applying for more than one position at a time that you foresee?
Multiple applications per profile are allowed, not sure of the number though. Having said that, be cognizant and ensure all positions are in the same general area/discipline. Worst case scenario, start over with a new profile, and new email address.