As CEO of Ding Dong Class,1. In the early stage, I focused on the construction of core functions of the product, simulated real teachers with systematic technical solutions and AI technology, and gave students English enlightenment courses. In the middle and later stages, besides being responsible for financing and corporate culture construction, ensuring revenue growth has become my main task.2. set up customer acquisition team, according to different customer types, set up different teams.3. Build a sales management system, take the number of user registrations, user experience rate, referral rate and conversion rate as the assessment criteria for each channel, and evaluate the ROI of each channel.4. In three years, we have more than five million registered users and more than 120,000 long-term paying users5. The company was founded in February, 2018, launched products in September, earned $15M in revenue in 2019，and $20M in 2020.A total of $33M financing has been obtained.

In 2015, I joined 51talk and was in charge of the company's Adolescent Oral English Business department, helping the department's performance increase by 5 times in one year; in 2016, the company was listed on the New York Stock Exchange; in 2017,I served as the company's senior product director and managed the company's product team of more than 100 people.Triple the efficiency of sales and service teams by analyzing user data and providing intelligent reminder dashboards, allowing them to easily respond during communication with users, thereby reducing labor costs and providing users with a better user experience.Reduce network bandwidth requirements by 60% to deal with network lag during classes due to poor network conditions in the Philippines, making classes smoother and increasing user payment rates.

Tencent is the largest Internet company in China, and I am the director of Enterprise 2.0 platform. It launched Lexiang in partnership with Enterpprise wechat, China's largest enterprise IM platform, and now serves more than 100,000 enterprises and organizations. Led the team to win the highest award of Tencent twice.Among them, because more than 1 million articles were accumulated within Tencent within three years after the project started, it made the greatest contribution to Tencent's knowledge accumulation and sharing and won the Major Business Breakthrough Award.Secondly, thanks to the question-and-answer system we developed and operated, all important and sharp questions will be answered by the relevant person in charge at the first time. This greatly promotes internal communication at Tencent and improves the information transparency of large enterprises. Therefore, my team was awarded the Management Breakthrough Award.Focusing on knowledge management and team collaboration within corporate organizations, it explores a variety of application scenarios. At Tencent, the daily visits reach 63% of the number of employees, the weekly visits reach 97%, and more than 6 million articles and content have been accumulated.It has become one of the core applications of WeChat for Enterprises, with more than 300,000 registered companies.

As the system architect of Oracle China, I won more than a dozen performance benchmarks for Oracle over a year and earned more than $15M in revenue.As an Oracle system architect, I am mainly responsible for the architecture design and performance optimization of Oracle China's large-scale projects. I have been responsible for several projects with a value of more than $1 million and have achieved success.

In 2002, I obtained Oracle OCP certificate. In 2003, I joined Oracle Asia Pacific R&D Center as a software engineer. In 2005, I became Oracle Product Development Manager, leading a R&D team of more than 20 people, responsible for core product development and solving difficult problems of several major customer projects.XBRL (eXtensible Business Reporting Language) is a markup language based on XML (eXtensible Markup Language).It's mainly used for the processing and exchange of business and financial information. It's widely applied in the field of financial reporting and can make the preparation, analysis, and sharing of financial data more efficient and accurate.Oracle Asia Pacific R&D Center and Oracle Japan jointly started the development of XBRL product projects. In the early days, I was just a software development engineer for the project. Because I took the initiative to redesign the new software architecture, the performance of the software was improved by more than ten times, and the scalability of the software was greatly improved. I was quickly promoted from an intermediate engineer to a senior engineer, project leader, and development manager.