Can my employer enforce my non-competition clause?
These clauses also need to be supported by consideration. Employers who do not have you sign the non-competition agreement at or around the beginning of your employment run the risk that they will be held invalid and unenforceable. Non-competition agreements which are signed well after the commencement of your employment could be invalid if your employer didn’t offer you something new in exchange for this new promise, such as a bonus, a raise, a promotion, or something else of value.
You should keep a copy of your non-competition agreement and understand its terms. It is not advisable to assume that they are unenforceable.