You do not need to be certified to work there. It helps but they do not require it. If the guy is related to you then best to mention it now and set a follow up date in September. I know the instructor jobs go fast but they have plenty of other jobs that need to be filled there. Plus there are 2 other resorts in the area. Check Butternut Basin if you want to get more involved in freestyle or park. The 3rd place is not worth driving the distance you are for a job, very small and more of a ma and pop ski area.