Schedules are normally about 10am to 7pm give or take an hour. Do your research before volunteering to come here. The only good thing is you will fly a lot. 60 to over 100 hours a month depending on the schedules you fly. Knowing spanish would be extremely helpful. PM me if you have specific questions.
Jumpseating to the island is nearly impossible due to very limited jumpseat agreements at AMF. I normally have to buy a ticket every month to get to my Guard job. I got hired straight into SJU and I've seen a few since me that were too.