# Jiachen Li

> Software Engineer @ Pinterest

Location: Cambridge, Massachusetts, United States
Profile: https://flows.cv/jiachen

A collaborative software engineer with 5 years of industrial experience designing and executing solutions for complex problem involving large scale data warehousing, real-time analytics, data platform, application and reporting solutions.

## Work Experience
### Software Engineer @ Pinterest
Jan 2023 – Jan 2026 | United States

### Software Engineer @ Wish
Jan 2022 – Jan 2023 | San Francisco, California, United States

### Software Engineer @ Wish
Jan 2022 – Jan 2022 | Ontario, Canada

### Software Engineer @ Wish
Jan 2019 – Jan 2022 | San Francisco, CA, United States

### Software Engineer @ Wish
Jan 2018 – Jan 2018 | San Francisco Bay Area
Graph database for transaction
• Designed and implemented graph database to speed up near real time BI query and to support multi-degree data integration
• Developed, monitored and maintained scalable cross-platform ETL data pipeline scheduled by Airflow. 
• Built dashboard for database quality check and near real time integration level monitoring and analysis
• Design graph algorithm query to detect fraud relationship between fraud merchants and fake users for anti-fraud purpose

Comment analysis and fraud detection
• Designed analysis tool based on NLP for transaction comment to support fraud detection and context management
• Implemented machine learning model and NLP algorithm to build classifier for comments sentiment analysis, fraud detection and topic identification.
• Built ETL data pipeline scheduled by Airflow for automatic data processing and results storage
• Achieved 88% accuracy on sentiment analysis and 100% accuracy on top 5% merchant level fraud detection

### Business Analyst @ Amazon
Jan 2016 – Jan 2017 | Beijing City, China
• Developed analysis tool for evaluating and predicting currier workload and performance based on historical data
• Extracted refined and analyzed daily operations data for optimization
• Generated carrier’s delivery model to provide workload prediction and data analysis


## Education
### Master of Science - MS in Computational Science
Georgia Institute of Technology

### Bachelor's degree in Industrial Engineering
Tsinghua University

### Minor in Finance, General
Tsinghua University

### Beijing National Day School


## Contact & Social
- LinkedIn: https://linkedin.com/in/jiachenli

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Source: https://flows.cv/jiachen
JSON Resume: https://flows.cv/jiachen/resume.json
Last updated: 2026-03-31