Credit Card application using job offer

I am currently earning about 20-25k/yr (2-3 days per week @ $200/day, while studying) but I start a new job in Oct at around 130k/yr but it requires relocation and I would like to use a credit card to help with moving (I get 7.5k relocation with first paycheck but that's 2 weeks after starting).

My issue is the cards I want to apply for (cards with ff points) have 35-75k min salary. Is there any way to use future employment contract in the applications.