At 15, you're going to have a hard time finding a job with a company, most places want people over 16. You might ask friends and family if they know any one that can use an extra pair of hands, snow shovelling, baby sitting. Put up some flyers in local supermarkets. Check Craigslist or similar local online boards for opportunites. But the most important part is asking. Askeveryone you know. Good luck.