Frankie Xu (Yun Fu Hsu)

I’m a backend-focused full-stack engineer with 5+ years of experience building scalable, reliable, and well-structured systems for startups and growing businesses. My core strength lies in backend development—designing clean architectures, robust APIs, and efficient data models using Python (FastAPI / Django), along with SQL/NoSQL databases such as PostgreSQL, MySQL, and MongoDB.

While backend engineering is my primary focus, I’m equally comfortable delivering complete end-to-end solutions. I have hands-on experience with Vue.js, React, and React Native, allowing me to build full-stack applications, admin dashboards, mobile app MVPs, and custom client-facing features when needed.

I’ve delivered projects including CRM platforms, streaming service backends, payment & identity integrations, workflow automation systems, mobile app backends, and fintech modules such as anti-fraud and risk assessment pipelines. I take ownership from system design → implementation → deployment, using tools like Docker, AWS, and GCP to ensure each solution is production-ready.

I rely heavily on AI-assisted development tools such as Cursor, GitHub Copilot, ChatGPT, Claude, MCP, and n8n to accelerate prototyping, simplify complex implementations, and automate repetitive work—helping clients get results faster without compromising quality.

If you need an engineer who can understand your business logic, design a solid backend, integrate with external services, and deliver complete full-stack or mobile-ready solutions, I’d be happy to help bring your product to life.