Data Analyst

Lefei Wang

Milpitas, ***** 415-***-**** ************@*****.***

EDUCATION

Bachelor of Science, Applied Statistics track, Statistics

University of California, Davis September 2024

Associate of Science, Mathematics

City College of San Francisco June 2023

Course Work: Linear Algebra, Linear Regression, Logistic Regression, Variance Analysis, Time Series, Data Science, Mathematical Statistics, Bayesian Statistical Inference, Data & Web Technologies for Data Analyst, Intermediate Macroeconomic Theory, Marketing for the Technology-Based Enterprise,

Supply Chain Management

EXPERIENCE

Innovation Business Department Intern, ERGO-LIFE Insurance Co.

Jinan, China August 2023 - December 2023

● Utilized SQL, R, and Python to analyze and visualize large, complex customer datasets for predicting behavior, resulting in a 15% increase in retention.

● Developed machine learning models to identify customer trends and improve decision-making.

● Utilized Python (NumPy) and Matplotlib for creating comprehensive data visualization dashboards.

● Automated data collection and reporting processes, cutting manual effort by 30%, leveraging Python scripts for streamlined efficiency.

● Collaborated with teams to design customer service strategies, improving success rates by 20%, applying data-driven insights.

Office Assistant, City College Of San Francisco

San Francisco, CA October 2022 - May 2023

● Assisted students with applications and admissions documents, enhancing user support and interaction skills.

● Helped collect and organize data on courses and students' information using Excel and Python

● Assisted with student documentation processes, developing data collection solutions to improve office workflows.

Internship at Institutional Support Department, China International Capital Corporation Limited

Beijing, China February 2022 - March 2022

● Collected banking institutions’ financial data with Wind (financial app) and visualized data trends using Python.

● Collaborated with financial analysts to create predictive models for investment risk assessment.

● Wrote and completed the new IPO fund roadshow meeting minutes independently.

Internship at Secretariat, Yabuli China Entrepreneurs Forum

Beijing, China June 2021 - August 2021

● Collected and organized data of information for over 200 entrepreneurs participants and helped assign guests in different meeting sessions.

● Analyzed participation and media responses for over 200 entrepreneurs, generating visual reports using R and Python

● Helped the team analyze problems and fixed emergency issues during the forum, improving crisis management capabilities.

SKILLS

· Programming & Tools: R, SQL, Python (NumPy, Pandas), Tableau, Matlab

· Software: Microsoft Software Suite (Word, Excel, PowerPoint, Access)

· Machine Learning: Linear regression, Logistic regression, Support Vector Machines, Random Forest, XGBoost

· Languages: Native in Chinese (Mandarin), Fluent in English, Elementary in French

COURSE PROJECT

● Predictive Modeling for Life Expectancy using Simple Linear Regression in R

●Build the Prediction Model for Neural Activity Analysis for Decision-Making in Mice using SVM, XGboost, Random Forest, and Logistic Regression in R

●Bayesian Analysis to explore the relationship between various demographic factors and serious crime rates in different countries using Monte Carlo methods

●Time Series Analysis of Export Trends in the Central African Republic using ARIMA Model in R

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