Overview
Work History
Education
Skills
Research Projects: The effect of exchange rate on net export
Research Projects: Travel agency database design (Database design)
Certification
Timeline
Generic

Hangjun Zhang

Boston,MA

Overview

4
4
years of professional experience
1
1
Certification

Work History

Research Assistant

Northeastern University (Department of Economics)
Boston, MA
01.2025 - Current
  • Developed a web crawling pipeline using Python (BeautifulSoup, JSON) to discover and collect diverse, high-quality datasets for analysis, reducing the time spent on manual data collection by 60%.
  • Pre-processed large-scale labor market data (1M+ records) on new entrants to the government's labor force by using Python (Pandas, NumPy, Scikit-learn), ensuring data integrity and usability for research.
  • Cooperated with the professor to review and refine algorithms using machine learning techniques, improving data extraction efficiency, and reducing processing errors.

AI Application & Database Developer

IQIYI | Top video entertainment company In China
Beijing, China
05.2024 - 08.2024
  • Collaborated with a team of eight to innovate and develop two AI application services: AI customer service, which helps the customer service department reduce its workload by 40%, and AI cartoon production, which allows users to easily produce children's cartoons in less than three minutes.
  • Formulated a diverse range of prompts in Dify, Midjourney, and Stable Diffusion, and inputted 200 high-quality knowledge base entries for the training of large language models using in two applications, enhancing the accuracy of the application models' responses to user inquiries by 60%.
  • Accessed and collected user data using the API from the company's website and apps, refined and shaped over 4,000 data points using SQL and Power BI, and made the datasets ready to use directly for analysis.

Data Analysis Program Assistant

University Of Electronic Science And Tech of China
Chengdu, China
04.2021 - 04.2022
  • Examined datasets comprising over 200 observations of collegiate athletes' performances, and identified critical factors affecting final scores by stepwise selection.
  • Developed machine learning models (K-means clustering, PCA, etc.) to analyze and predict athlete potential scores, directly influencing training regimens for 80% of athletes.
  • Visualized more than 10 graphs and interactive plots using Matplotlib, Altair, and Seaborn, which facilitated discussions with coaches regarding tailored training strategies.

Education

Bachelor of Science - Data Science And Economics

Northeastern University
Boston, MA
05-2026

Skills

  • Public presentations
  • Visual data representation
  • Machine learning
  • Web scraping
  • SQL databases
  • Programming languages

Research Projects: The effect of exchange rate on net export

  • Led a team of 7 to explore topics and roles of different variables, assisting group members for math modeling, ensuring effective task delegation, timely progress tracking, and final report compilation.
  • Selected randomly 100 countries to build a dataset by combining and collecting the data from different websites of authoritative organizations.
  • Performed econometric analysis using OLS regression to evaluate the impact of exchange rate fluctuations on net exports, incorporating variables like inflation rate, development status.
  • Created visualizations, including scatterplots and regression diagrams using Python, highlighting the relationship between exchange rates and net exports across a dataset.

Research Projects: Travel agency database design (Database design)

  • Constructed visual representations of complex databases through intuitive ER diagrams, which enabled the analysis team to pinpoint growth opportunities within existing datasets containing insights from more than 200 unique clients.
  • Engineered a MySQL database and crafted an intuitive Appsmith dashboard, enabling streamlined management processes that upgraded user accessibility for creating travel plans by 20%.

Certification

  • Investment Risk Management Certification by Coursera Project Network
  • Finance & Quantitative Modeling for Analysts Certification by Upenn Wharton

Timeline

Research Assistant

Northeastern University (Department of Economics)
01.2025 - Current

AI Application & Database Developer

IQIYI | Top video entertainment company In China
05.2024 - 08.2024

Data Analysis Program Assistant

University Of Electronic Science And Tech of China
04.2021 - 04.2022

Bachelor of Science - Data Science And Economics

Northeastern University

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Hangjun Zhang