skilled in something
skilled at something

An apprentice will learn by working with someone who is already skilled at a job.

He loves to cook, and is very skilled at it.

Your people are skilled at the telling of such tales.

There was no reason to think the Americans were less skilled than anybody else at that sort of thing.

In our culture, children rich and poor grow highly skilled at video games they play for hours.

Which ones are the most skilled at this kind of work?

The ten of us had become quite skilled at survival by now.

He grew up to become a charming man skilled at war and politics.

We were becoming more skilled at our job by this time.

Someone who is skilled at something always makes it look easy.