· Designed A/B tests for newly launched email and notification marketing campaigns. Conducted initial power analysis to determine test duration and sample size; Measured the impact of A/B tests using hypothesis testing or Bayesian approaches, accurately determining their effectiveness. Presented results to CRM marketing stakeholders, receiving positive feedback.· Regularly monitored campaign performance, providing analysis reports. Conducted detailed investigations into any significant variances, identifying root causes and recommending strategic adjustments; Collaborated with CRM marketing stakeholders to uncover opportunities for enhancing user experiences.· Applied causal inference methods to assess the impact of campaign changes on KPIs. Utilized difference-in-differences methodology for a more precise analysis of pre-post KPI impacts; Analyzed the effects of creative changes on click rates, suggesting subsequent steps for creative optimization.· Employed logistic regression and causal trees for in-depth analysis, improving audience targeting accuracy. Focused on engaging more involved audiences, resulting in a 15% increase in overall campaign engagement rates.· Performed exploratory analysis of the CRM audience, aiding the marketing team in pinpointing ideal consumer behaviors. Offered recommendations for comprehensive strategic adjustments.Worked alongside project managers and operational teams to streamline A/B testing procedures.

· Conducted marketing research analysis for the Photoshoot booking platform; collected customer demographic information through various channels using self-designed customer questionnaire· Performed K-means clustering algorithms utilizing the collected customer information to create customer segmentation and identify target cohort· Optimized advertisement effectiveness by feeding customized content to 5 customer clusters leveraging historic platform usage data and customer questionnaire results; mapped out customer journey for 5 cluster; successfully improved download rate by 70%

· Built and maintained the reporting data pipeline for major KPIs including gross merchandise value, developed daily and weekly sales reports enabling operators to closely monitor business performance.· Designed and developed interactive, automated Tableau dashboards that providing insights on B2C business operations to operators, and the automated reporting system successfully saved 30% reporting time.· Compiled digital marketing analysis report focusing on customer and sales analysis to provide livestream salesperson guidance on better product selection and opportunities to improve profitability, boosted sales by 50%

· Conducted competitive product analysis following SWOT framework for 10+ different products to establish thecompetitive advantage of the real-time communication product.· Analyzed the relationship between user experience and stall rate; designed user feedback system to collect data andestablished threshold on stall rate to accurately define bad customer experience.· Designed A/B test for technology strategy of real time communication product, generate report about strategy reference andimprovement direction