Hello, I'm

Calvin Leo

Transforming complex data into strategic business insights

Calvin Leo

About Me

Get to know more about who I am, what I do, and what drives me.

About Calvin Leo

A results oriented Computer Science undergraduate with expertise in transforming complex data into actionable business insights. Proficient in Python, SQL, and Tableau, with a proven track record of diagnosing revenue leakage and optimizing credit risk detection. Experienced in advanced predictive modeling techniques such as SMOTE and SHAP to drive data informed decision making. Passionate about leveraging data analytics to solve real world challenges and enhance operational efficiency.

5+

Projects Completed

10+

ML Models Built

500K+

Data Records Analyzed

3+

Certifications

My Skills

Technologies and tools I work with to build amazing products.

Education & Awards

My academic background and recognition of achievements.

Education

Awards

Work Experience

My professional journey and the roles I've held.

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My Portfolio

A showcase of my recent projects and work.

Home Credit Risk Prediction

Home Credit Risk Prediction

Machine Learning model for predicting credit default risk in banking. Achieved 0.66 Recall using SMOTE for imbalanced data handling and SHAP/LIME for model interpretability.

PythonScikit-learnSMOTE+2
US Retail Profitability Analysis

US Retail Profitability Analysis

Comprehensive data analysis on 9,900+ sales records with Tableau dashboard for executive reporting. Identified profit leakage and recommended discount optimization framework.

PythonPandasTableau+1
Online Retail Database Migration

Online Retail Database Migration

ETL pipeline for migrating 540,000+ transaction records from CSV to MySQL with Python and SQLAlchemy. Implemented 3NF schema design with referential integrity.

MySQLPythonSQLAlchemy+1
Heart Disease Prediction

Heart Disease Prediction

Machine Learning model for predicting heart disease with 90% accuracy using Random Forest algorithm. Demonstrates proficiency in ML algorithms for healthcare problems.

PythonScikit-learnRandom Forest+1
TikTok & Academic Performance Research

TikTok & Academic Performance Research

Quantitative research study analyzing the relationship between TikTok usage frequency and academic performance (GPA) among 51 students using R statistical analysis.

RStatistical AnalysisResearch Methods

Latest Blog Posts

Thoughts, insights, and tutorials about web development.

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Get In Touch

Have a project in mind or just want to say hi? Feel free to reach out!

WhatsApp

+62 821 6362 7326

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Gmail

calvin.leo05@gmail.com

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Telegram

@clvinnnleo

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Calvin Leo

This portfolio website was designed, developed, and deployed by Calvin Leo from front end to back end, including database architecture and security implementation.

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