At MWG, I own core modules across TGDD E-commerce Systems, including the SEO service for MWG sites handling ~3,000 requests/second. I also maintain product APIs and redesigned Redis cache keys to prevent cross-page content collisions under load.
I designed the voucher module for the new cart, including partner voucher integrations and checkout recalculation for stacked vouchers. I built payment services on a MediatR-based CQRS pipeline and integrated MoMo, MWG Wallet, and Kredivo VN.
Before that, I built Google OR-Tools route optimization for delivery, installation, warranty, and repair orders, and designed core microservices for the VuiVui marketplace. My work also includes a construction cost estimation system and seller workflows for Bach Hoa Xanh.
