As an employee or independent contractor, you may have to sign a contract that contains a non-compete provision. The main purpose of the clause is to safeguard proprietary information from similar, competing companies. Make sure you understand and agree with the stipulations described in the non-compete clause for your contracted company’s sake, as well as for your professional reputation.
Reference
Quintessential Careers. Dealing with Non-Compete Clauses and Agreements. Retrieved from http://www.quintcareers.com/non-compete_clauses.html