Wei Lu Email & Phone Number

Chesterfield, Missouri, United States

- Participated in developing Rx Predictive Model API by using Node.js and AWS SDK: fetched data from DynamoDB, generated model features(adherence ratio, drug combo, etc), applied spline transformation on data and scored the data by using spline regression model, and made the API’s median response time less than one second. Also conducted unit, validation, and integration tests and deployed the API on AWS Lambda by using Jenkins- Designed, developed and implemented a Rx1 scoring tool by using Python: used object oriented design to generate severity scores based on rules and prescription data, significantly improved the underwriting process- Participated in Rx Predictive Model batch scoring tool on Spark: designed case classes, partitioned the data, generated drug dosage features and diabetic features, tuned spark configurations and did code refactoring on a billion scale dataset, making the running speed of the program 120 times faster- Wrote customized Dockerfiles for Domino compute environment for different projects

Chesterfield, Missouri, United States

- Built ETL data pipeline for the NDC and NPI data: scraped data from websites, S3 buckets, Oracle, and internal sources, wrote spark program to clean, merge and transform the data, and loaded the data into Oracle databases.- Developed COVID-19 Tracker dashboard to visualize the USA/ global COVID-19 critical trends: fetched data from JHU CSSE dataset daily, then cleaned, processed and visualized the data by implementing the UI and sever logic in R-shiny- Used shell scripts to create a JSON/csv conversion tool to assist PMs consuming the model output automatically

Shanghai, China

- Collected data, performed feature engineering, and built behavior models of an online loan business using random forest, Xgboost, and logistic regression to design and monitor risk management models.- Queried and analyzed data by using SQL, and provided suggestions to improve risk management policies and product strategies- Designed a process to streamline the generation of reports. Set operational indicators, used Excel to analyze data, and sent reports automatically by using Spoon.- Set indicators, used SQL to gather data, and conducted tracking monitoring to create an A/B test to help minimize costs.- Wrote a program to monitor customers' behavior such as registration, authentication, loans-making, etc., to find potential abnormalities and provide timely feedback.- Performed data quality tests to ensure that all data is usable; provided feedback to and coordinated with the IT Department

Shanghai City, China

- Analyzed the searching behavior of online medical-portal users by querying structured and unstructured data from Hive, conducting event tracking, and providing customized strategies- Researched the reasons for refunds through user portrait, correlation analysis, and Semantic analysis with Python; offered suggestions for the improvement of product design and user interface design- Responsible for data extraction, indicator system design, statement deployment, and query speed optimization

Shanghai City, China

- Conducted industry research, on the application/technology level of artificial intelligence, and music festivals- Mastered H5, CSS and Web development, designed the UI interface of applets