That's a thuja. Not a juniper.
The fronds on these are flat (left and right if the twig is held horizontally), not three dimensional like junipers (up, down, left and right when a twig is held horizontally). Scale foliage of junipers is sausage-shape round, these are flat.
I have a couple like these, pretty vigorous! But rather difficult to design because of those fronds.