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Hi! I'm Kexin. Second-year Computer Science and Applied Math student @ Columbia Engineering.

Currently @ Jane Street AMP. I'm passionate about building software tools to improve education & lives. More broadly, I'm interested in AI/ML, cool math puzzles, design, and board games/games in general (hit me up with your recs)!

Projects

Entropy-based Wordle Solver

A web-based word game where players guess a five-letter word + 100% win-rate, 3.57 average guesses solver

 python

 html

 css

 javascript

 FastAPI

Conway's Game of Life

A zero-player cellular automaton simulation demonstrating complex patterns emerging from simple rules.

 html

 css

 javascript

Project Euler

A series of challenging math/computer programming problems that will require the use of a computer and programming skills to solve most problems.

 python

Experiences

CS Teaching Assistant @ Jane Street

June 2025-August 2025

Python instructor and teaching assistant to a class of ~15 talented students who have experienced barriers in math/CS @ the Academy of Math and Programming (AMP). Learn more about AMP here

Academy of Math and Programming (AMP) Scholar @ Jane Street

June 2024-August 2024

AMP’s rigorous curriculum focuses on computer science, combinatorics, and number theory, and prepares students for the challenges of STEM majors and careers.

Data Science Dashboards Research Intern @ CMU

June 2023-August 2023

Used PANDAs and Python to develop data visualization tools for HuBMAP and the BIL

Collaborated with the Pittsburgh Supercomputing Center's Bioinformatics team to clean and wrangle data for HuBMAP

Bonus

In my spare (aka not coding) time, I'm a recreational artist and dancer! If you're interested in my work, you can find my various art here and dance clips here!



Contact

Email: kkc2160@columbia.edu

Linkedin: linkedin.com/in/kkc2160

Github: github.com/chen-k-06