John Lee

I am a Staff Software Engineer with 10+ years designing, developing, and deploying robust web applications and services. I focus on building scalable, high-performance server-side solutions while delivering dynamic, user-centric frontends.

At Airbnb, I optimized the main accommodations search and booking page—reducing initial page load by ~35%—and led React code-splitting, SSR, and image-delivery improvements to boost TTI, SEO, and conversions. I also contributed to a large-scale JavaScript-to-TypeScript migration that improved type safety and developer productivity.

I design and maintain backend services and microservices in Go, Python, Java, C#, and more, and I migrated legacy monolith components to service-oriented architectures to improve deployment times and fault isolation. I work with Kafka for event streaming, GraphQL/REST APIs, distributed tracing tools (Zipkin, Jaeger), and AWS infrastructure.

I mentor engineers across frontend and backend domains, promote clean architecture and testing, and partner with data science and engineering teams to deliver analytics pipelines and business-critical features at scale.