newexpactqatar, either you are western or not, it is the same (art. 74-75 of Law No (14) of the Year 2004 – Qatar Labor Law). However, from what I know, overtime payment are not applied for people at managerial level, who are not supposed to sign in and out.
about your friend with 2.5 years experience, usually in Qatar the minimum requirement for such works is 3y+. To me it sounds fair, maybe it can be improved...but at the end of the day the difference is also done by the works you were involved and the like...each CV has a different weight in my opinion (and each person professionally, as well).