👋 Hey, my name is David Chen:

I'm currently a Applied Mathematics and Computer Science student at Yale University, interested in financial engineering, software engineering, capital asset pricing, and everything in the intersection of technology and finance.

Who am I?

I am a second-year student at Yale majoring in Applied Mathematics and Computer Science. While I’m passionate about the intersection of technology and finance, I also enjoy spending my time outside the academic world. You’ll often find me outdoors, whether it's hiking, working out, or playing badminton. I’m an avid reader, and one of my all-time favorite books is The Emperor of All Maladies by Siddhartha Mukherjee, which has deepened my curiosity about the human body and the broader world of science. I’m always eager to explore new ideas and challenge myself in different ways, both in and out of acaedmia.

Hope to connect with you soon! 😊

Relevant Experience

January 2024 - Present | New Haven, CT

Yale School of Medicine

Undergraduate Researcher

• Designed and implemented an advanced DICOM processing pipeline to extract and analyze radiotherapy treatment plans, with applications in brachytherapy, under the mentorship of Professor Christopher Tien
• Coauthored the research work “Automated Channel Reconstruction For Efficient Brachytherapy Treatment Planning” to the 2025 Annual Conference of Brachytherapy

January 2024 - Present | New Haven, CT

Yale School of Engineering and Applied Science

Undergraduate Researcher

• Contributed to machine learning research with Professor Tassiulas and Dr. Palaiokrassas on complex network analysis of Decentralized Finance (DeFi) protocols, with applications in fraud and anomaly detection and network optimization
• Developing a decentralized application (dAPP) using smart contracts to provide transparency and data privacy in the training of Large Language Models, fine-tuned domain-specific LLMs for cryptocurrency.
• Implemented advanced graph-based algorithms to identify vulnerabilities in DeFi protocols, enhancing the robustness and security of blockchain networks.

May 2021 - Present | New York, NY

Zenith Technologies

Founder and CEO

• Founded a software-as-a-service platform and web development agency, providing software on a subscription basis
• Solely responsible for product development efforts, overseeing the design, implementation, and successful deployment of new products and routine updates; decreased churn rate by over 50% through automated subscription management.
• Delivered services to a network of more than 50 online communities, catering to their unique needs and requirements

December 2020 - January 2023 | New York, NY

The Stuyvesant Spectator

Head Web Editor and Managing Board Editor

• Managed a department with over 40 members; developed a brand new React website with more than 13,000 monthly visitors
• Reduced AWS website expenses by about 50% and spearheaded a project to rewrite the website, utilizing NextJS, MongoDB

April 2022 - April 2023 | New York, NY

Key Club International

District Webmaster and Executive Officer

• Developed to add new features to a website with more than 3,000 monthly visitors using WordPress, Javascript, and PHP
• Designed social media content using Canva; led leadership workshops at multiple conventions attended by Key Club members all over New York State

Selected Projects

Personal Quantitative Trading Project
Technologies: Python, Pandas, Tensorflow, LightGBM, SQL

• Engineering a comprehensive, modular trading framework that integrates multi-strategy implementations (momentum, factor, pairs, machine learning, and regime switching), and robust backtesting capabilities

• Implemented sophisticated risk management tools—including dynamic Value at Risk (VaR), Expected Shortfall CVaR), and volatility forecasting using GARCH models—ensuring rigorous portfolio risk control.

• Optimized computational efficiency through parallel processing (using ThreadPoolExecutor) and efficient data management (with parquet storage), enabling rapid analysis and real-time signal generation for live trading.

EdTech Startup in the Making
Technologies: Next.js, PostgreSQL, AI, Vercel, Docker, AWS

• Working with two other Yale co-founders to develop an EdTech platform that I can't disclose yet, but it's going to be big!

ECommerce Discord Bot
Technologies: Discord.js, Google Sheets API, Tesseract OCR

• Designed and developed a custom Discord bot tailored for an e-commerce client, enabling an efficient, in-app ordering process.

• Implemented an interactive checkout flow where users can order items through bot prompts, with real-time inventory updates in Google Sheets.

• Integrated OCR technology to verify payment transactions, ensuring a seamless and secure order processing experience.

Code Fjord - Online Educational Platform
Technologies: ReactJS, AWS, PostgreSQL, Docker

• Developed an intuitive educational platform designed for students to learn how to code through interactive lessons and practice; provided an in-browser coding environment for multiple languages and instantaneous feedback.

• Integrated and maintained a remote code execution engine built with Docker and NodeJS, with security measures against potentially malicious code, fork bombing, and forbidding outgoing network requests; supports languages such as JavaScript, Java, and Python.

Custom Browser Autofill Extension
Technologies: React, JavaScript, Regex, JavaScript obfuscation

• Leveraged React to create a seamless browser autofill extension for Chromium browsers that expedites the checkout process on various e-commerce platforms, enhancing the user shopping experience.

• Implemented a robust regex engine that identifies and fills in data on websites not directly supported by the autofill, increasing the tool's applicability across various platforms.

• Conducted rigorous testing using both unit and integration tests to ensure the functionality, performance, and reliability of the extension, leading to a bug-free release.

Bot Protection Script Reverse Engineering and Deobfuscation
Technologies: NodeJS, AST traversal, Golang, Bezier Curves

• Utilized Acorn AST traversal to deobfuscate the clientside JavaScript code for Akamai’s bot protection service to figure out parameters and metrics collected by the script

• Simulated realistic mouse movement data points by utilizing Bezier curves, splines, Gaussian functions, and Fourier series combined with random noise and custom velocity variables

• Forked and modified the standard Golang low-level TLS library to imitate different browser’s handshakes, Client Hellos, HTTP2 frames, and cipher suite configurations in order to mimick real browser requests

Skills

Connect with me on LinkedIn!

Contacts: +1 646 894 2374 or [email protected]