Perhaps. But so long as that agreement is voluntary, that is, so long as you are free to reject that requirement and seek employment elsewhere, then your rights have not been violated.
Look at another example: You have the God-given right of liberty; to go where you will. However, during your working hours, your employer can certainly require you to stay at the work place. Nobody cries "foul" because an employer won't let you go hiking in the woods for a few hours every day and keep your job. This is not a violation of an employee's rights, but rather a reasonable requirement of employment.
A door-to-door salesman has the right to sell his product. But I have the right, as a property owner, to deny that salesman access to my home. I haven't violated his rights, but restricted him from exercising those rights on my property. Similarly, a company has the right, as property owner, to limit who and what may come onto that property.
Citizens have the right to protest and demonstrate to express their opinion. But I don't have to allow a picketer onto my front lawn so he can exercise that right. Neither must a business owner allow picketers to march in the lobby of their building. Is this a violation of those protesters' freedom of speech?