Zijin Wang - Software Engineer

My Projects

Legislative Tracking API - Death Penalty Census

Legislative Tracking API Integration

Python REST APIs Google Colab

Collaborated with the Death Penalty Information Center to build a Python-based tool that automates tracking of death penalty legislation across U.S. states using LegiScan's API.

XChange-Platform

Python HTML/CSS JavaScript

Developed a web application for seamless conversion between 36 fiat currencies and top 100 cryptocurrencies, integrating multiple APIs for real-time exchange rates and historical trends.

Depop Deal Finder

Python Selenium BeautifulSoup

Spearheaded development of an application to address user frustrations with resellers on Depop, using web scraping to filter out resellers and highlight genuine bargains.

Work Experience

Software Engineering Intern - OfferFit

Python Streamlit Plotly BigQuery

Designed and implemented an interactive dashboard delivering real-time insights for ML Engineers. Created robust data pipelines integrating internal utilities and machine learning libraries. Improved system reliability by implementing automated alerts using BigQuery and SQL.

Undergraduate Teaching Assistant

SQL Database Design Technical Communication

Led weekly SQL lab sessions and office hours for 100+ students in Database Design and Modeling course. Mentored students on complex query optimization and database architecture principles. Developed learning materials to simplify challenging database concepts.

Founder/Developer - Grocery Delivery Service

JavaScript WeChat API Full-Stack Development

Architected and developed a WeChat Mini-Program serving 10,000+ users. Optimized database architecture and query performance, reducing order processing time by 30%. Implemented user authentication, payment processing, and real-time order tracking features.

About Me

I'm a Software Engineer with a strong foundation in computer science fundamentals and practical experience building scalable applications. Currently completing my Bachelor's degree in Information Science at the University of Maryland with a GPA of 3.96, and starting my Master's in Computer and Information Technology at the University of Pennsylvania in Fall 2025.

My technical expertise includes full-stack development, cloud architecture, and data engineering. I'm particularly passionate about building robust, efficient systems that solve real-world problems. My experience with both frontend and backend technologies allows me to develop comprehensive solutions from concept to deployment.

Education

University of Maryland - College Park
Bachelor of Science, Information Science
Expected Graduation: May 2025

University of Pennsylvania
Master of Computer and Information Technology
Starting Fall 2025

Technical Skills

Python Java SQL JavaScript HTML/CSS React.js Node.js Django Flask Google Cloud Docker CI/CD MongoDB PostgreSQL RESTful APIs

Hi, I'm Zijin Wang