Yunfan Xu
Senior Software Engineer+ Technical Leader, Full-Stack Developer, System Architect, Engineering Mentor, Performance Optimization, and Scalable Systems
Hi there
I'm Yunfan, a Senior Software Engineer at , with over 6 years of experience specializing in architectural design, system scalability, and technical leadership. My expertise spans full-stack development, leveraging JavaScript, TypeScript, React, React Native, and Ruby on Rails to build robust, scalable solutions that deliver significant business impact.
In my current role, I've led major technical initiatives, including refactoring a high-volume core API serving over 600,000 daily requests, resulting in a 50% reduction in median latency and enhancing reliability by significantly reducing error rates. I've also designed and implemented scalable backend architectures and critical features such as Bulk Action Management, advanced filtering, and a robust Redis-based email/SMS scheduling system. Additionally, I successfully completed a secure SAML-based Single Sign-On integration ahead of schedule, enhancing security and user experience.
Previously, at Meta Platforms, I developed mobile applications and GraphQL APIs facilitating cross-platform functionalities that drove significant increases in fundraiser creations and donations on Instagram. I streamlined development processes through comprehensive logging systems and end-to-end testing frameworks, contributing to improved software stability and operational efficiency.
Beyond technical achievements, I'm passionate about mentoring engineers, fostering collaborative team environments, and promoting continuous learning. I hold a Master's degree in Computer Engineering from NYU Tandon and consistently focus on knowledge sharing and technical excellence within my teams.
