Justin S. Yoon
Summary
Accomplished data professional specializing in supply chain data, bringing over 5 years of programming expertise. Demonstrated success in optimizing data processes and enhancing operational efficiency.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Sr Data Analyst/Enginner
Drive DeVilbiss Healthcare
04.2024 - Current
- Maintained supply chain master data and ensured data integrity across different environments, such as SAP IBP, ECC, OSCA, and other raw sources.
- Created an SQL database and automated the data pipeline. The database empowered the team, estimated to save over 5 hours per week on data extraction, and gave users access to data that was not accessible previously.
- Used Python to engineer a network model and optimized the inventory across seven distribution centers.
- Created an inventory script to project weekly and monthly inventory levels for both finished goods and their components. The script helped save planners, buyers, and management hours of manual analysis.
- The company held the least amount of inventory, while also holding the least number of back orders in over five years.
Sr Planning Analyst
Drive DeVilbiss Healthcare
03.2023 - 04.2024
- The scope of categories planned has increased to more than 100 million dollars in products and over 1,000 SKUs.
- Mined data from third-party websites and internally to create an Amazon-focused dashboard using Power BI, which showed visibility on forecasts, inventory, sales, demand, ad spend, and more. Average cuts decreased to less than 7%, and data was shared with Sales and PMs to increase forecast accuracy by more than 15%.
Planning Analyst
Drive DeVilbiss Healthcare
07.2021 - 03.2023
- Participated in the SIOP process, monitored the market, demand trends, and planned supplies of more than 50 million dollars' worth of products, over 100 SKUs, across a broad range of categories.
- Utilized Python and automated most pre-existing reports and data pipelines, effectively enabling the team to save more than 10 hours per week.
Data Analyst Intern (Part Time)
The Ulysses Group
06.2021 - 12.2021
- Utilized Python to extract, clean, analyze, and model terabytes of geospatial data.
- Used a combination of both supervised and unsupervised machine learning models on geo-spatial data.
Assistant Store Manager
Beauty Supply Store
06.2015 - 06.2021
- Responsible for inventory, placing new orders, and building relationships with customers.
- Understood the products, their application and provided product recommendation to customers.
- Reduced costs by more than 20% by analyzing and comparing products from multiple merchants.
Education
Masters of Science - Data Analytics
Western Governors University
Bachelors of Science - Integrative Neuroscience
Binghamton University
High School Diploma -
Bronx High School of Science
Skills
- Python Programming
- Power BI
- SQL
- Data Visualization, Data Analysis
- Data Mining, Data Modeling
- Machine learning
- Inventory management
- Demand/Supply Planning
Certification
- APICS CPIM - Certified in Planning & Inventory Management to understand concepts for planning and controlling the flow of inventory in a supply chain.
- Udacity - (3) Data Engineering, Data Analyst, Data Visualization certificates to show proficiency in data engineering, analysis, visualization, Python and SQL.
- IBM Data Science Certificate - Specialization from IBM to learn IBM Cloud, Python, SQL, data visualization, data analysis, statistical analysis, predictive modeling, and machine learning algorithms.
- SAS - (2) Certified Statistical Business Analyst Using SAS 9, Regression and Modeling. Certified Specialist, Base Programming Using SAS 9.4
Timeline
Sr Data Analyst/Enginner
Drive DeVilbiss Healthcare
04.2024 - Current
Sr Planning Analyst
Drive DeVilbiss Healthcare
03.2023 - 04.2024
Planning Analyst
Drive DeVilbiss Healthcare
07.2021 - 03.2023
Data Analyst Intern (Part Time)
The Ulysses Group
06.2021 - 12.2021
Assistant Store Manager
Beauty Supply Store
06.2015 - 06.2021
Masters of Science - Data Analytics
Western Governors University
Bachelors of Science - Integrative Neuroscience
Binghamton University
High School Diploma -
Bronx High School of Science
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