To Aim At
To Aim
transitive verb, godan verb
Remember 狙い and how it means "aim"? Make that into a verb, and you have to aim at.
The reading comes from 狙い, so if you know that you'll be able to aim at knowing this word's reading as well.
一応忠告しておくと、奴はお前のポジションを狙ってるみたいだぞ。
Just a word of advice, it looks like he’s aiming to take over your position.