Projects
Shoobbang
Freelance, 2024.03 – Present
Cross-platform Baking Recipe & Ingredient Management App Development
ExpoTypeScriptRealmZustand+1 more
Driver's License Korea
Freelance, 2025.05
Cross-platform Driver's License Theory Test App & PDF Parser Tool Development
ExpoTypeScriptZustandexpo-sqlite+2 more
GroomerNote
2023.01 – 2024.04
Pet Groomer Appointment & Sales Management Platform (Web Frontend Lead Developer)
Next.jsTypeScriptReact QueryZustand+5 more
HelpSaveTax
2022.06 – 2022.12
Tax Refund Web Service for Medical Clinics
ReactNext.jsMonoRepoMicro Frontend Architecture+2 more
MedicoFact
2021.10 – 2022.01
Location-based Hospital & Specialist Recommendation Responsive Web Development
Next.jsStyled-componentsSWRDaum Kakao Maps API+1 more
Shoobbang
Cross-platform Baking Recipe & Ingredient Management App Development
Freelance, 2024.03 – Present
Tech Stack
ExpoTypeScriptRealmZustandRESTful API
Other Tools
MixpanelrevenueCati18nFigma
Role & Responsibilities
- •Developed automated calculations and data storage features for ratios, cost per unit, and pan size changes
- •Improved onboarding and UX through data-driven insights from Mixpanel
- •Led cross-platform development for iOS and Android with multi-language support
- •Set up QA automation to ensure app quality and stability
Key Achievements & Impact
- ✓Identified high churn rate after app install via Mixpanel and added onboarding on critical screens, reducing churn by approximately 18%, improving early user engagement and repeat usage
- ✓Automated calculation logic and testing led to reduced bugs and improved user trust and product quality
- ✓Developed and applied an auxiliary keypad to reduce the performance overhead of real-time data detection, fully resolving bugs caused by existing auto-calculation logic and significantly enhancing user satisfaction
- ✓Continuously iterated based on user feedback, positively affecting app store ratings and user retention