Not specified. The individual is an employee of the company and the exact duration of the contract is not specified. The individual is an employee of the company and the duration is specified in the contract. The individual is an employee of the company and the duration is specified in the contract. The employee may or maybe not paid for his job and does not have the same productivity requirements than other employees. This type of contract is often offered to students. The individual work under contract with the company as a freelance.