At IGCY Singapore, I integrated an affiliate promotion system across the Loyalty App, POS/Cashier, and Admin Panel, enabling real-time voucher redemptions and contributing to a 25% boost in organic user acquisition.
I also refactored a legacy Ionic Angular codebase into a Progressive Web App, reducing developer debugging time by 70%. For ERP and POS screens, I optimized data loading and database structures, cutting redundant API calls by 40%.
At IGCY Singapore, I introduced reusable entity scoping and role-based access control across four module families to enforce tenant data isolation. I also implemented table sharding, targeted indexes, cached count queries, and batched synchronization jobs for reporting.
In my internships at PT Tera Multi Wahana and PT Infosys Solusi Terpadu, I developed a .NET REST API, data-processing and reporting applications, and Java middleware with a data validation layer. I also built SiniAja!, a Laravel and React platform, and Habit Shaper, a habit-tracking application with a Fastify API.
