At MACES BD, I upgraded website modules and integrated backend CRM APIs for lead tracking and customer applications. I also implemented the SSL Commerz payment gateway and built a Study Abroad platform with appointment booking and destination matching.
I built Shopkeeper, a multi-tenant AI customer support SaaS using FastAPI, React, and Supabase. It includes context injection, per-store API key isolation, an embeddable widget, session memory, and an analytics dashboard; I also developed a bilingual Bengali-English RAG pipeline and published research on interpretable DDoS attack detection.

