I'm Shawn Yan (Xuantong Yan), an AI infrastructure and backend engineer based in the Bay Area.

I build software that lives behind the interface and quietly does the hard work: backend infrastructure and AI systems.

At Amazon, I work on cloud provisioning and scaling for internal services that help keep amazon.com responsive when real-world traffic surges.

Before that, at Blinkfire, I built machine-learning systems for advertising and media analytics, helping teams understand whether ads actually land and which signals make them effective.

On my own time, I tinker for fun with local-first AI tools, agentic development workflows, and small software products.

Away from the keyboard, I like traveling, going for runs, and coming home to my cat.

My cat relaxing in a sunny window

Reach me on LinkedIn, GitHub, or at [email protected].

Experience

Amazon - Software Engineer, AI infrastructure, backend infrastructure, cloud capacity planning, distributed systems.

Blinkfire Analytics - Software Engineer, AI-driven SaaS analytics, backend services, machine learning systems.

JD.com - Software Engineering Intern, backend services, video infrastructure, deep learning integrations.

Projects

CalPal - an on-device, privacy-first AI calendar for iOS using local foundation model parsing.

Multi-Agent Job Search Platform - a reference AI agent platform demonstrating orchestration, HITL checkpoints, evals, tracing, and MCP-style tool boundaries.

Also Known As

Shawn Yan and Xuantong Yan refer to the same software engineer and AI infrastructure engineer.