About Wongyu Jeon | Contra Wongyu Jeon

Wongyu Jeon

Wongyu Jeon

Junior BI Analyst | Data cleaning, analysis & visualization

New to Contra

Wongyu is ready for their next project!

Seoul, South Korea

Work Posts Services About

Seoul, South Korea

Meet Wongyu

Followed by Kross M, Md Rejve Rahman T, and Nicolas P

Information Systems @ Carnegie Mellon University
Junior BI Analyst | Data Cleaning, Analysis & Visualization

- Data analysis languages (Python, SQL, R)
- Python libraries for model building (Pandas, Scikit-Learn, Pytorch)
- Data cleaning & management tools (Excel, SSMS)
- Data visualization tools (Tableau, Power BI).

Identity verifiedVetted for secure and trusted collaboration.

Rate

$25 - $50/hr

Skills and tools

Data Analyst Data Visualizer Data Scientist Data Scraper Data Modelling Analyst Researcher Data Entry Specialist Business Operations Data Engineer

Microsoft Excel

R

Microsoft SQL Server

Details

Seoul, South Korea

Fluent in Korean and English

Join 50k+ companies and 1M+ independents

Hire creatives Get hired

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

Contact

Contact support

For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Challenges Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

Contact

Contact support

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

© 2026 Contra.Work Inc