MergePlus

Collaborated closely with Product Owners, Delivery Owners and UI/UX Designers to determine platform requirements and priorities.
Improved the design and development capabilities by leading development teams.
Built infrastructure to handle data for millions of users in systems.
Performed client data structure refactoring, reducing loading time by 30%
Monitored systems to support troubleshooting and maintenance services through AWS.

Developed and implemented APIs to establish linkage with external organizations for mobile coupon issuance/cancellation/search/extension.
Designed and developed a gift payment system module using PG company and our own product.
Developed a push notification and MMS transmission system using FCM that responds to user actions in real-time.
Created customized in-app gifting content tailored to user needs through user analysis and feedback.
Conducted GA data modeling and data analysis to enhance customer understanding and improve user experience.
Designed and developed user activity and payment history tracking systems to analyze usage and optimize services.
Analyzed and provided payment data modeling to enhance settlement processing and reduce errors.

RDB Schema design and definition, batch service, event module development
Add transaction to solve concurrency/coherence issues when using and accumulating

RDB Schema design and definition of regular subscription products, batch service, and event module development
Development of external goods user transmission automation such as Payco/Toss/Hana Point
Content development to check user’s consumption history and benefits
Improved barcode screen for real-time payment
Development and advancement of regular subscription product code entry/user usage history/payment history
Application of transaction separation and removal of legacy sources in the existing payment system

New subscription service RDB Schema design and definition, batch service, event module development
Development of in-app content webview
Speed improvement/improvement by introducing in-app content image area CDN