How would you say in French: "I work at one, too"?

First it is " Je travaille dans une maison de retraite" .

The answer can be" Je travaille dans une, moi aussi", but honestly a French would rather just say " Moi aussi !" .

Edit @ Zunden : " J'y travaille aussi" would only be right if the asker worked in the SAME maison de retraite .

But it's not the same .

Je travaille moins un, trop

It's called a "French" kiss for exactly the same reason people used to say "Excuse my French" when they used "vulgarities". America was very puritanical and the Victorian English quite straight-laced when, by comparison, the French aristocracy was positively decadent.

J'y travaille aussi.

"J'en travaille a une" would mean "I work of one also" not "I work in one also." Use "y" to replace places.

Je travaille moins un, trop

Et moi aussi. is simpler and perfectly understandable.

You must use Google translate

je travaille jusqu'a une heure, trop.