Saratorn Sawetsuttisirikoon
Verified Expert in Engineering
Data Analyst and Developer
Bangkok, Thailand
Toptal member since October 3, 2022
Saratorn is a real solution provider using data analytics. He has worked on several data analytics and data science assignments for the past three years. Saratorn's notable projects include a product recommendation and recategorization for a retailer, credit scoring for a bank, and a coupon distribution optimizer for a food delivery platform.
Portfolio
Experience
- Machine Learning - 3 years
- SQL - 3 years
- Data Analytics - 3 years
- Business Analysis - 3 years
- Data Preparation - 3 years
- Python - 3 years
- Data Science - 3 years
- Data Visualization - 3 years
Availability
Preferred Environment
Python 3, SQL, Tableau, Slack, Apache Airflow, Jira, Confluence, Presto
The most amazing...
...thing I've developed is a machine learning model that can identify groups of users that would yield long-term profits for a food delivery platform in Thailand.
Work Experience
Strategy and Data Analytics Assistant Manager
LINE MAN Wongnai
- Built an estimation system for customer lifetime value to improve budget allocations. Projected the future income from each customer, helping the marketing team better optimize budget allocation and target marketing actions to the right customers.
- Built a machine learning model to identify group of users that would give profitable return on investment for coupon discount.
- Provided customer insights to design a defensive plan for a new market entrant. Identified at-risk customers, determined the coupon packages' proper attributes, and presented the findings with data visualization.
- Identified the primary factors and quantified the impact of each factor causing couriers to cancel orders. Hence, the operation team could prioritize their work and create relevant SOPs.
- Created monitoring dashboards to track the merchants' and platform revenue uplifts and cannibalization effects after a new product launch. This allowed the operation team to fix problems before they caused the merchants to churn and lose trust.
- Created analytic dashboards to identify the optimal penetration rate of the campaign, i.e., yielding the highest uplift to the company and merchants' satisfaction.
- Conducted clustering and a data visualization of the customer journey to help the product development team understand how the users interact with the application.
Data Scientist
Siam Commercial Bank
- Built an underwriting process for a new loan product targeting customers with low income and very few banking activities using a machine learning model.
- Explored the relationship between phone usage and delinquency to create new features for loan targeting.
- Created a hashing process to share customer data with the partners.
Data Analyst
Sertis
- Built a product recommendation system using a collaborative filtering algorithm to estimate sales of missing items across different branches of a retailer providing supporting information for the merchandise team.
- Recategorized a product using graph network analysis to provide insights into user behaviors and product attributes to recategorize the SKUs.
- Automated the data integration and analytics reports saving 16 person-hours per week.
Intern
Asia Plus Securities
- Automated risk review reports of derivatives trading portfolios using VBA.
- Prepared data and calculated value at risk (VaR) of derivatives trading portfolios using R.
- Generated a portfolio performance attribution analysis report using VBA.
Experience
Coupon Distribution Optimizer for a Food Delivery Platform
Education
Bachelor's Degree in Economics
Chulalongkorn University - Bangkok, Thailand
Exchange Program in Economics
Erasmus University College - Rotterdam, Netherlands
Skills
Libraries/APIs
Matplotlib, Pandas, Scikit-learn, PySpark, Google Sheets API
Tools
Seaborn, Apache Airflow, Google Sheets, Tableau, Redash, Slack, Jira, Confluence
Languages
Python, SQL, R, Excel VBA
Paradigms
Business Intelligence (BI)
Frameworks
Presto, Spark
Other
Data Analytics, Data Preparation, Exploratory Data Analysis, Data Science, Statistics, Data Visualization, Machine Learning, Data Mining, Business Analysis, Presentations, Forecasting, Data Analysis, Dashboards, Excel 365, Derivatives
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