At almost every large, successful company there is a huge disconnect between what hiring is screening for and what corporate blog posts might suggest, to the point of engineers themselves being unaware of how the experience is for most applicants (after all, they are self-selected…) Usually this boils down to "you don't seem to have enough experience" or "you don't know anyone on the team who can vouch for you to get through the initial resume screen". A real shame, since it leaves a number of qualified applicants in a poor position, but presumably Stripe has enough people applying that they can afford passing up people.