This summer vacation, I was very lucky to get an internship offer from ByteDance, the company behind TikTok and one of the world's top tech giants. The internship lasts for three months and my position is business analyst. At present, I am in the internship. I will spare no effort to combine mathematical theoretical knowledge with actual operation. Through professional data analysis, data mining and Python programming, I will provide accurate and scientific decision-making basis for decision makers. I am very proud of my achievements and enjoy my work. (The original offer is in Chinese and was translated into English using an online translation website for ease of reading.)