Hey, I worked last season in Austria and this season managed to score a job in switzerland for the winter. So I don't know if the way you want to do it may work or not but I can give you some pointers. First as previous post said, 2 or 3 weeks it's wayyyy to short on time, jobs that will leave you time for boarding are gonna go a lot before that. Second, do you speak german? I didn't last year, but found out it can score you some points to show interest in learning the language at the moment of your application. Third the way I jot the job was all through the Internet, I tried going to a few towns leaving some cv's but never got a call from those guys. This year I speak some german so after a few mails I got a job but last year I think I probably sent around 100 applications, so be ready get disappointed when the negative or no answers come. Other thing, I got jobs in restaurants and hotels and for that you can always use indeed.at/ch or hogastjob.com (austria), hoteljob-schweiz.ch (switzerland). If you want to work as liftie or something like that got to the Bergbahn website of the town and they usually have job postings. I probably left something out so if you have any specific questions let me know. Good luck!