What does On Watch mean, and what is a past hirer?

Both mean the same thing: the Board of Education has posted direct ALT roles before and has nothing open at the moment. It is a record of past hiring, not a claim that a role is coming.

A Board that runs a standing register, taking applications all year without a specific opening, also sits here with a rolling intake note rather than being shown as hiring.

The listings and prefecture pages label this On Watch. The map panel calls it past hirer, because on the map the word watch belongs to your own watchlist and one word could not mean two things.