Jiaxin Deng

About Jiaxin Deng

Working across AI infrastructure and agentic systems.

Experience

1. Software Engineer

   TikTok

   Nov 2023 — Present

   Transformed the customer service experience by building AI(LLM/chatbot) agent solutions, improving agent process time by 30%. Ledthe implementation process using Python, LangChain, and other Web Technologies, ensuring seamless communication between AIsystems and the ByteDance customer service platform. Led the feature engineering for the ByteDance Customer Service Platform using TypeScript, React, Tailwind CSS, and React Query,directly supporting TikTok Shop and other TikTok entities, leading to operational costs reduction by 20% through proactive issue detectionand resolution. Developed and optimized back-end RPC services for TikTok Shop’s customer service platform using Java, Spring Boot, Thrift, andMyBatis. These services supported critical after-sales operations, ensuring smooth functionality during high concurrency situations. Implemented caching with Redis and managed services using Kubernetes and docker, resulting in a 15% improvement in systemresponse time during peak traffic periods. Leveraged Webpack for efficient asset management, and implemented CDN and Lazy Loading techniques to enhance applicationperformance, decreased system latency by 15%. Took full ownership of the aftersales tool, establishing myself as the primary point of contact and leading a comprehensive coderefactoring project for thousands lines of unstructured and tightly coupled production code. This initiative improved code complexity by34%, and reduced bug reports by 28%, significantly increasing overall system efficiency and user satisfaction.

Education

• San Jose State University

  Bachelor of Science - BS