During May 2025, Huangjun Huang contributed to the alibaba/ChatLearn repository by enhancing documentation to support reinforcement learning (RL) capabilities in the Qwen3 model. He updated Markdown-based documentation to reflect integration with FSDP and vLLM, enabling scalable training workflows and clarifying RL training methods for users. Huangjun also synchronized English and Chinese README files, ensuring consistent communication of technical features and business value. Additionally, he addressed a documentation bug by refining grammar in the Latest News section, improving clarity for users. His work demonstrated strong skills in technical writing and documentation, with a focus on user onboarding and enterprise readiness.