You will need to get yourself an attorney & also have them review the agreement.
Ca. re non-compete agreements: (many times unenforceable)
Ca. - Restrictive convenants that prohibit an individual from pursuing an "entire business, trade, or profession..." are invalid. The general rule in Ca. is that noncompetes are unenforceable. State law has narrowly drawn exceptions for noncompetes made pursuant to a sale of a business, sale of a shareholder's stock, or dissolution of a partnership. Otherwise, agreements that limit an employee's ability to obtain work will be enforced only when the employer can show a strong interest that needs to be protected. Ca. courts generally don't give force to geographical & temporal restrictions, but the courts have consistently upheld an employee's convenant not to solicit the former employer's customers for terms from one to five years after employment ends. Ca. courts won't reform a noncompete that's void & illegal even when the agree. contains a savings clause expressly providing that the parties agree that the court may narrow the agree. as written if it's found to be unfair or commercially unreasonable.
This is how courts seem to handle noncompetes in Ca. They are not always completely unenforceable or banned.

