Building a trebuchet to hurl rocks is stem though

Probably makes more money as a trebuchet operator too

Behold the return of the Mighty Trebuchet Memes!

The military will need skills like that once modern civ collapses later this century.

Interesting that "Mother, 33" doesn't have a name

As a retired toolmaker, I see your trebuchet and raise you the artillery piece I made for myself - a small Coehorn mortar of about 50mm/2" bore.

I've known 2 toolmakers that have built their own full scale full functional Gatling guns from scratch also.

I know what she should do with that

If not STEM, then HEAL? (Health, Education And Learning)

wait they did not ask for 10 years experience in the field?

Being "trebuchet master" without "Science, technology, engineering, and mathematics"... doubt

Since they specified female, there is presumably also at least one male trebuchet master as well, meaning that the UK considers trebuchets important enough to have multiple trebuchet Masters.