Jingxuan Liu

Software Developer Intern at Jinfurui (Beijing) Technology Co., Ltd.

Migrated a legacy ERP system to a modern full-stack architecture. Built RESTful APIs using Python and FastAPI with JWT authentication for 8+ core ERP modules. Designed and maintained modular PostgreSQL schemas with SQLAlchemy and Pydantic. Developed real-time BI dashboards in React with Ant Design to visualize metrics for 50+ users across 10+ business units. Integrated Qwen3-32B LLM via LangChain to automate catalog recognition, form filling, and content generation, reducing manual workload by 70% and processing 100+ documents monthly at 92% accuracy. Built an AWS SageMaker pipeline using S3 as the data source to automate data processing, model training, and evaluation for ERP AI model integration; implemented CI/CD-enabled ML workflows, reducing iteration cycles from 7 to 2 days and enabling 3× faster deployment.