Primary selection based on international standardized exam is called General Record Exam and academic qualification. secondly, make sure they ask for English language proficiency test. thirdly they ask for personal statement of purposes. I said, I did my undergraduate degree in Petroleum & Mining Engineering with many Geology and Geophysics courses. Moreover, I have a strong background in Geo-Mechanics, Fluid Mechanics, Applied Mathematics, Physics, Numerical Simulation, Calculus, Laplace Transformation and Engineering Statistics. I also have experience in different software and computer programing such as ProMax2D, Petrel, SurfSeis3, IXRefraX3, IXIDV-2, RES2DINV, CANVAS, C++ and Surfer. Finally, they check the academic background and availability. They offered the position and I accepted. Anyone can also deny the offer. they also check my willingness to accept challenges and goal oriented work for this company.