Open to opportunities

James Guo

@jamesguo1

Message

Staff software engineer specializing in full-stack product systems and performance optimization.

United States

Message

What I'm looking for

I seek senior full-stack roles where I can architect scalable product systems, improve performance and metrics, mentor engineers, and collaborate with cross-functional teams on data-driven features.

I am a Staff Software Engineer with extensive full-stack experience building scalable, high-performance product features using React, TypeScript, Java, and Python. I architect end-to-end systems—frontends, microservices, APIs, and analytics—focused on measurable business impact.

At companies like Airbnb and Netflix I drove improvements in conversion, engagement, and Core Web Vitals by designing reusable UI frameworks, real-time services, and data visualization tools, while collaborating closely with product, design, and ML teams. I also mentor engineers and establish frontend and backend best practices to accelerate delivery and reliability.

I enjoy solving cross-cutting problems—performance, personalization, and observability—by combining pragmatic engineering, data-driven experiments, and maintainable platform design to deliver customer value at scale.

Experience

Work history, roles, and key accomplishments

Current

Staff Software Engineer

Current

Airbnb

Jul 2022 - Present (3 years 4 months)

Architected and built end-to-end guest and host features using React, TypeScript, Java, and Python microservices, improving booking conversion by 11% and reducing page load times by 28% while achieving 99% API uptime.

React TypeScript Java Python GraphQL Redis Kafka AWS D3.Js

Staff Software Engineer

Netflix

Jul 2019 - May 2022 (2 years 10 months)

Led redesign and backend modernization of Netflix.com using React, TypeScript, Java, and Python, driving an 8% lift in title views and improving Core Web Vitals by 8% while delivering shared UI libraries adopted across product pods.

React TypeScript Java Python GraphQL WebSockets AWS D3.Js Apollo

Senior Software Engineer

Two Sigma

Oct 2018 - Apr 2019 (6 months)

Built responsive, data-rich web interfaces with React and Vue for internal analytics platforms, reducing render latency and improving page load times by 12% through modular reusable components and frontend best practices.

React Vue Javascript (ES6)D3.Js Figma Webpack ESLint REST APIs

Software Engineer

Squarespace

May 2016 - Sep 2018 (2 years 4 months)

Designed and implemented scalable backend services in Python and Java for content management and commerce, optimizing API and database performance to improve response latency by 30%.

Python Java PostgreSQL Redis Kafka Celery RESTful APIs Background Jobs

Software Engineer

Epic

Dec 2014 - Feb 2016 (1 year 2 months)

Developed backend services and data-driven web applications using Python, PHP, and MySQL to support EHR workflows, improving data exchange reliability and reducing manual entry errors by 20%.