I designed and built Chemtial, a B2B/B2C chemical and laboratory e-commerce platform, as a production-oriented portfolio project. It includes multi-language product data, dual online-payment and cash-on-delivery workflows, and an admin dashboard with role-based access.
I also built Natarsal, a restaurant reservation platform with an ACID-safe reservation lifecycle and a REST API. Across both projects, I document architecture decisions and verify AI-assisted code against engineering standards for security, performance, testing, and production readiness.

