SmartRefi: GPA-Based Student Loan Refinance Platform
Designed a normalized MySQL database to model a GPA-based student loan refinancing system and built analytical queries to evaluate lender pricing and refinance behavior.
Tech: MySQL · SQL · Python · MongoDB · Data Modeling
Approach
- Designed a normalized relational schema to model borrowers, lenders, and offers.
- Implemented pricing logic to evaluate refinance eligibility.
- Analyzed borrower outcomes to quantify interest rate improvements.
Results

Entity-relationship model defining borrowers, lenders, offers, and refinance contracts.

System-level UML diagram showing application and data flow.

Relationship between borrower GPA and offered interest rates.

Interest rate improvement achieved through refinancing.

Lender participation and disbursement distribution.