Hi Samuel, It looks like the minimum age to work at Petco is 16. You can see the available jobs they have by going to the company page here on Jobcase! Just click their name in your post, then click the "Apply" tab. You'll see a list of jobs and can apply for any you're interested in.

After you submit your application, follow up within a couple days by calling to make sure they received it. Here is their number: (870) 802-3296

Good luck!