
Q.C. Tan
AI Engineer LLM RAG Python Developer
Skills

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Work experience
AI Research & Development
Alibaba • Full-time
Aug 2023 - Present • 2 yrs 11 mos
Developed AI-powered applications based on Large Language Models (LLMs), including OpenAI-compatible and open-source models such as Qwen, Llama, and DeepSeek. Designed and optimized prompt engineering strategies for business scenarios, improving response quality and task completion accuracy. Built Retrieval-Augmented Generation (RAG) pipelines integrating vector databases and knowledge retrieval to enhance question-answering performance. Developed Python-based backend services and RESTful APIs for AI applications using FastAPI. Participated in LLM evaluation, workflow automation, and model integration, delivering scalable AI solutions for enterprise use cases. Collaborated with cross-functional teams to deploy and optimize AI systems in production environments.