Legal Question in Employment Law in California

A written agreement between you and the company should take precedence over an expression of company policy intended for the entire workforce. Furthermore, your agreement would probably be viewed as a contract (which I can only assume without reading it), whereas, most employee handbooks contain disclaimers which say they are not intended to be contracts.

I agree with Mr. Kirschbaum, as far as his reasoning goes. However, unless the agreement also expressly said it was not modifiable by the employer and gave you guaranteed employment for a specified term except firing for good cause, then you are an at will employee and they can change the terms at any time and fire you if you disagree.

The written agreement, if that is actually what you have.