Looking on the internet deeply has found these results:

I am working with is the most popular phrase on the web.

I am working at 1551,000 results on the web	I am working with 11,030,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
No, I am not working at Starbucks. I am working for the master at Versailles. I am working at Thrifty Town because I literally cannot afford to move to Atlanta, and Melvin is unyielding on any refunds of last month's rent and deposit. I'm not sure it would be appropriate to show favouritism... if indeed I am working on anything at all. He was and is a horrible person, and I am still working at forgiving him. It is a welcome contribution to the wider debate on security of supply of energy in Europe, on which I am working at present. I am working at my brother's sports bar. I should like to list, for the record of the House, the active cases I am working on at the moment.	end regional morning show. So I am working with you? I am working with the Member States to try to find the right answers to these questions. But there you are "live from The Hague"... and here I am working with this sack of dander on a dead Gloria, I am working with them, I need to know how they tick. I am working with Mr Solana to define the potential and the limits of our respective roles and responsibilities. I am worKing with McKinney, counseling him. And I am working with a doctor who is fricking losing his mind.

I am working at

1551,000 results on the web

I am working with

11,030,000 results on the web

More popular!

No, I am not working at Starbucks.
I am working for the master at Versailles.
I am working at Thrifty Town because I literally cannot afford to move to Atlanta, and Melvin is unyielding on any refunds of last month's rent and deposit.
I'm not sure it would be appropriate to show favouritism... if indeed I am working on anything at all.
He was and is a horrible person, and I am still working at forgiving him.
It is a welcome contribution to the wider debate on security of supply of energy in Europe, on which I am working at present.
I am working at my brother's sports bar.
I should like to list, for the record of the House, the active cases I am working on at the moment.

end regional morning show.
So I am working with you?
I am working with the Member States to try to find the right answers to these questions.
But there you are "live from The Hague"... and here I am working with this sack of dander on a dead
Gloria, I am working with them, I need to know how they tick.
I am working with Mr Solana to define the potential and the limits of our respective roles and responsibilities.
I am worKing with McKinney, counseling him.
And I am working with a doctor who is fricking losing his mind.