# Yanfei Tu

> Software Engineer at RMS

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/yanfeitu

Technical Skills:
Programming Languages: C++, Python, Scala, Java, C#, SQL, JavaScript, Unix
Tools & Libraries: AWS, Spark, Git, Pandas, Scikit-learn, Machine Learning Algorithms

## Work Experience
### Software Engineer @ RMS
Jan 2019 – Present | San Francisco Bay Area, CA
Backend Engineer for Catastrophe Risk Models Analysis Engines (Scala, C++, Java)
- Worked on building analysis engines cloud-based solutions on AWS
- Optimized data transfer to SQL database and Parquet files using Spark
- Wrote integration tests and unit tests to validate the consistency of the modeling results

### Software Engineer @ Reach Analytics
Jan 2018 – Jan 2019 | Redwood City, CA
Data Wrangling Tool Optimization (C#)
- Identified and optimized performance bottlenecks making it scalable.
- Reduced runtime from 1hr to 3min for a typical dataset (∼30X faster)
- Refactored and improved the structure of the code using command design pattern
Data Analytics Tools Development (Python, Pandas, SQL)
- Implemented a tool to extract useful information from raw customer data
- Designed and implemented a disjoint-set-based data structure and algorithm to identify and
  store data of customers belonging the same super-household

### Software Engineer Intern @ NerdWallet
Jan 2015 – Jan 2015 | San Francisco, CA
Deciphering user’s clicks on nerdwallet.com (Python, SQL, JavaScript, D3.js, AWS)
- Extracted relevant user data from data warehouse
- Analyzed and identified user features that can predict click behavior on products
- Designed a tree data structure to store user click data for webpages in nerdwallet.com
- Implemented a UI to interactively visualize data to steer business decisions


## Education
### Master's degree in Computer Engineering
University of California, Santa Cruz

### Bachelor of Science (B.Sc.) in Physics
Sun Yat-Sen University


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

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Source: https://flows.cv/yanfeitu
JSON Resume: https://flows.cv/yanfeitu/resume.json
Last updated: 2026-03-29