(1) big data development direction: the market demand is strong, is the main body of big data training, the corresponding positions are big data development engineers, data analysts, etc.;

(2) data mining, analysis: it is difficult to learn, the corresponding positions are data scientists, data mining engineers;

(3) big data operation and maintenance/cloud computing direction: biased linux cloud computing discipline, the corresponding positions have big data operation and maintenance engineer.

It's most important role is that it can help enterprises understand the user. The most representative of this is e-commerce, such as Taobao, Jingdong and so on. Through big data can analyze the user's behavior, accurate positioning of the consumption characteristics of the target group, brand preferences, geographical distribution, etc., so as to carry out targeted promotional marketing.

With the development of the Internet era, big data in finance, health care, transportation, e-commerce and other fields have applications, in recent years, artificial intelligence, the rapid development of the Internet of Things, such as e-medicine, smart bracelets, smart homes, etc., the Internet of Things background of people's behavioral data will be in the form of exponential growth. So it is currently a state of scarcity of big data talent, so the employment field of big data is very wide, but the requirements for talent are relatively high.