I've taken a job as a pastry chef; do you have any advice about working in a professional bakery?!

I've taken a job as a pastry chef; do you have any advice about working in a professional bakery?

The best advice I can give you is about cleanliness and sanitation.You'll be washing your hands many times a day and sanitizing everything you use as well.
Pay close attention when you're being taught about using their equipment.The machinery they use is very costly and needs proper attention and proper cleaning.
Measuring in exact amounts is also important.Always use the timers on ovens etc. and learn to listen for them.
Check dates on items you're baking with for expiary and report anything past date.
Good luck with your new job and enjoy.