Crystal Shi Email & Phone Number

Mountain View, California, Us

Mountain View, California, Us

Mountain View, California, Us

Mountain View, California, Us

• Responsible for creating the onboarding process fraud strategy for payments processing at Intuit. Assess different types a fraud risk at the application stage and build the policy framework at onboarding including setting up BRE rules in Zoot system and Post-UW process. Tie different MO’s based on different types of fraud such as stolen identity fraud/business fraud. Add authentication such as Challenge Questions, SMS auth to increase the confidence level of fraud detection. • Evaluate vendors that provides data, machine learning models or tools for payment risk.• Analyze new trends of fraud, use machine learning models to come up with transactional monitoring rules to catch fraudulent behaviors and reduce risk exposure in merchant’s lifecycle.• Create strategic fraud policy and metrics, assist with progressive onboarding and 100% approval. Build champion challenger for A/B testing of our risk system. Work closely with data science team to provide analytics support and take leads in the projects.

Laguna Niguel, Ca, Us

• Monitored over $30 million per month in credit card processing and minimized risk by detecting business with potential fraud. Built statistical models to predict the chargeback ratio of different merchants using random forest. Quantitatively explained what might cause potential fraud and what actions should be taken to decrease the fraud. • Built classification model using logistic regression to approve the merchant account application for both online merchants and retail merchants based on features such as the credit score of the owner, the types of marketing they use, business type, financial situation etc. • Helped with sales operation team to target the right customers using data analysis. Used past sales figures to forecast the short-term and long-term future performance. Identified company’s business needs to target specific types of online merchants (continuity business etc.).

Master'S Degree, Statistics

Bechelor Of Science, Financial Economics And Mathematics Double Major