Online Proctored Calculus Exam Help

I have a one-hour calculus exam coming up that will be administered through a third-party proctoring service. I need a maths expert who is completely comfortable working under live online supervision and can deliver accurate, real-time solutions within the tight time limit... (Budget: $250 - $750 USD, Jobs: Calculus, Geometry, Mathematics, Matlab and Mathematica, Physics, Statistics, Time Management)