It's hard. There are three rounds of interviews. Sanofi's interview is not simple and relatively difficult, but as long as it is good enough, it is quite easy to pass. You need to submit your resume first and then interview. Sanofi is a leading medical and health enterprise in the world, focusing on the needs of patients, researching, developing and popularizing innovative treatment programs. Sanofi's main business covers three areas: medicines, vaccines for human use and animal health care. In 20 14 years, the net sales of Sanofi reached 33.77 billion euros.