Projects ​

AI knowledge hub providing SOP knowledge retrieval and intelligent Q&A for Wynn Macau hotel operations staff. Supports PDF/Word/TXT document parsing → vectorization → semantic search, with department-level knowledge base access isolation. Includes visual workflow orchestration (drag-and-drop intent recognition → knowledge retrieval → business execution → response generation), admin panel (model management, department/user management, conversation history, usage statistics)

Role: Designed the RAG retrieval pipeline and built the Milvus vector database, implementing department-level knowledge base access control; independently developed the visual workflow orchestration and admin panel frontend, supporting model configuration, user permissions and conversation statistics.

Recruitment platform integrating 'Yihutong' and ADFS OAuth2.0 login, with an innovative RAG intelligent assistant to handle high-frequency FAQ inquiries. Deployed Ollama engine with Qwen2.5 LLM, optimized Prompt and context management via LangChain4j to address LLM hallucination issues

Role: Handled OAuth2.0 login integration and recruitment core workflow backend development; led the RAG intelligent assistant module, completing Ollama private deployment, Qwen2.5 integration and Prompt/context optimization, significantly reducing model hallucinations.

A full-stack AI service platform built for Hunan Changsha Zhihuai Yuchuang Technology Co., Ltd. Core solution to address scattered AI tools and high barriers to entry for users in daily office and learning scenarios, providing one-stop intelligent services and membership value-added benefits via PC and WeChat Official Account dual-channel access.

Role: Independently handled backend architecture and core module development, integrating Kimi streaming conversation, WeChat Pay/Login, Tencent Cloud ASR and other third-party services; designed the membership permissions and billing system, and developed the admin panel frontend.

Deep collaboration with Changjiang International New Silk Road Logistics to build an online intelligent seal management solution. Core solution to cumbersome traditional seal workflows, cross-platform limitations and audit traceability challenges, supporting PC and WeChat Mini Program dual-channel collaboration to improve office efficiency and meet customization needs.

Role: Responsible for backend API development and Qulian blockchain notarization chain integration, implementing seal application, approval and on-chain notarization core workflows; contributed to Mini Program frontend development.

Sigte Seal Guardian V3 system. An intelligent seal management platform for government, financial and enterprise clients, integrating physical and electronic seals with OCR technology and online payment, enabling human-seal separation, remote authorization and full-process traceability, delivering an industry-wide seal security solution.

Role: Responsible for EMQX IoT device status monitoring and OCR pre/post seal comparison verification modules; developed the remote approval and electronic seal management backend, and delivered companion App APIs.

Integrated Fanwei OA authentication API and DingTalk data synchronization, breaking down data silos between internal enterprise office systems for unified management of organizational structure, approval workflows and message notifications

Role: Responsible for Fanwei OA SSO authentication API integration and DingTalk org structure / approval data sync interface development, implementing unified multi-system message push.

Custom OA system developed for Zhongbing Survey Institute with deep integration of the company's intelligent seal system. Core solution to cumbersome traditional seal application workflows, low approval efficiency and cross-system operation challenges, enabling convenient seal usage and seamless business workflow integration.

Role: Responsible for Zhiyuan OA and WeCom API integration, implementing user org structure synchronization and passwordless login; customized approval and collaborative office workflows based on client requirements.