Job Responsibilities: Responsible for analyzing, mining, and fighting malicious behaviors at the security level of WeChat payment business; Responsible for the formulation of various WeChat payment business security strategies and the construction of strategic basic platforms.   job requirements: Have more than 1 year development experience of C / C ++ project under Unix / Linux operating system; Familiar with shell programming and relational databases such as mysql; Love data, sensitive to data, love data analysis, and love to mine the actual value hidden in various types of data; Good character, cheerful personality, active thinking, strong reasoning and logical thinking; Machine learning, deep learning, and massive data analysis experience are preferred.