How can I renew my social security during my job-hopping in Shanghai?

Can be renewed, there are two ways: 1, for the flexible employment of social security, pay pension and medical insurance (note that the Shanghai household registration can only apply for flexible employment of social security); 2, social security company to pay, you can choose to pay the five insurance and one gold (not limited to household registration), you need to bear the cost of the unit + personal contributions. Relatively speaking, the social security company to pay on behalf of the