I was looking at one of the LinkedIn profile of a senior game programmer.

On his profile he wrote:

Worked on unreleased third-person action game

Developed AI systems for enemies.

What exactly does an AI system do? I probably should also ask what a system in a game do? Mostly doing management perhaps?

I wrote a basic AI movement of a monster in my basic arcade shooter game earlier this year, mostly using some hacky code to force it to work. So I am not sure how a system would actually work in a game. How much work in an AI system does managing or keeping track of all the AI in the game?

Are all systems in a game just simple components working together? Like how a car would probably work?

AI Systems is a vague term. If I were to interview this person for a job, I would assume it meant he designed the framework in which the game's AI works as well as some of the specific AI features within this framework, and I would ask him to elaborate on it.