Paying social security through the construction engineer's license is a common way of employment. Its essence is to establish labor relations, which is a legal form of employment. In this case, the employer needs to pay social insurance for employees, including pension insurance, medical insurance, work injury insurance, unemployment insurance and maternity insurance. At the same time, employees also need to pay corresponding social insurance premiums according to regulations. The advantage of this way is that you can enjoy the protection of social insurance system, and at the same time you can improve your skill level and professionalism.