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Li Zijun

Golang Backend Developer

Experience

Golang Backend Developer

Beijing Changliao Tianxia | 2025.08 - Present

Internet game company (over 100M cumulative users, 10M+ MAU)

  • Responsible for backend development of multiple game feature modules

Golang Backend Developer

Shanghai Siruijie | 2024.06 - 2025.02

Internship

  • Responsible for BI visualization data collection and processing Excel data sources
  • Called STT speech recognition API and LLM API to process document data, generating structured JSON data

Echo WeChat Mini Program

Echo Team | 2024.03 - Present

Campus WeChat mini program, 15k cumulative users as of 2025

  • Founder, tech stack selection, full-stack development and operations
  • Backend: Gin(Golang)+Redis+Pg Frontend: Taro(Vue+Typescript)
  • Independently completed backend development and full launch process
  • Project homepage: https://echo-sit.github.io

Projects

Online Judge based on Eino

Graduation Project

Implements core features of an online programming judge system, using ByteDance's open-source Eino LLM framework to call the Deepseek API for AI interaction. The sandbox supports multiple languages (Golang/C/C++/Python/Java), and the OJ supports AI problem generation and AI-assisted programming.