• Proposed and led the review ranking improvement project through adding BERT component to the system and redesign the weights and cooperated with backend to put the project online. Finally increased 20% quality. • Proposed and led uplift modeling project. A new angle to evaluate our result and a new way to deliver promotion. • Supported and provided insight to the data request from product team or other teams. • Conducted lots of proof of concept.

• Turned routine report work into automation by using R, MySQL and crontab, saving 90% time. • Made SQL queries to get the target list for marketing campaign. • Created Excel sales dashboards in order to allow sales team to quickly view and analyze their merchants easily. • Through inspected transaction record, found a loophole in reward system, and avoided potential loss. • Assisted Customer Service team to deal with problems from customers. • Studied user behavior including customer’s motivation, usage habit and scenario etc. and discussed idea with supervisor to check our imagination of customer.

• Provided phone and face to face legal consultation for citizen with consumer dispute and helped them make an appeal. • Deal with over 10,000 cases of consumer dispute in Taipei city, and archived the cases in system, determined whether the case was appropriate or not and distributed them to the right authority.

• Cleaned and transformed data into information like repurchasing rate, growth rate, retention rate and cohort table etc. • Repurchasing rate is the greatest contribution I've achieved during my internship that is still in use today. • Visualized data in a comprehensive way and presented it to all coworkers during the meeting.