Hi 👋, I'm Syed Rafsan Raiyan

👨‍💻 Role: Backend Engineer specializing in core banking architectures, system performance optimization, and high-concurrency APIs.
⚡ Current Focus: Deep-diving into Computer Networking, System Design, and building a multi-threaded HTTP Server from scratch in Python.
🛠️ Core Expertise: High-throughput REST API design, database migrations (MySQL to PostgreSQL), and unit testing/optimization.
💬 Ask me about: Backend architecture, SQL optimization, Django/Laravel, and containerization.
🌐 Portfolio: syed-rafsan-raiyan.netlify.app