Hefeng Zhang
Let design guide our intuition, and data shape our decisions.
Hefeng Zhang
I'm Hefeng Zhang. My work focuses on bridging human-centered design with data analysis. I am currently pursuing a master’s degree in Information Science @ Cornell University, and I earned my bachelor’s degree in Interior Design from Parsons School of Design.
I span my practice between visual UI/UX design and data analytics. I like to use machine learning models to solve complex patterns and visualize data to create solutions for real world problems.
In my spare time, I enjoy spending time with my cat and going on small hiking trips while catching the sunset.
Work Experience
Product Data Analyst Intern
- Led A/B testing and user intent analysis using behavioral data for search interface iterations, increasing click-through rate (CTR) by 12% and supporting data-driven decisions.
- Analyzed user behavior and sales data using SQL, Excel, and Python to identify optimization opportunities across search and recommendation features.
- Worked with product, engineering, and business teams to translate analytical findings into measurable improvements.
- Supported experimentation design and evaluated algorithm performance to improve feature effectiveness and user engagement.
Sanjin Capital
- Built and tested quantitative models using high-frequency market data to evaluate trading signals and strategy performance.
- Applied Python to conduct backtesting and generate performance metrics (e.g., Sharpe ratio, maximum drawdown), supporting data-driven decision making.
- Processed and cleaned large-scale financial datasets to improve data reliability and model accuracy.
Skills
Projects
Built an interactive web application in a 46-hour sprint to visualize environmental impacts of global data infrastructure, focusing on user interaction and real-time data visualization. (prototype in the portfolio section)
Developed a machine learning model using 1M+ historical visa records to predict approval probability and identify key decision factors, leveraging Pandas, PyTorch, and Scikit-learn.
Education
Coursework: AI Chatbots, RAG, AI Agents, AI for Business Applications, Deep Learning, Database Systems
Coursework: Python: Data, Science & Design, Linear Algebra, Multidisciplinary Calculus, Intro to Machine Learning, Intro to Data, Statistics with SPSS
Design
Click to open the full portfolio PDF.
Click to watch the project walkthrough.
Let's connect.
I'm open to Jobs, collaborations, and coffee chats. Feel free to reach out through any of the channels below.
2026 Hefeng Zhang The website icon is a tribute to my little dog, Leo.