Mcdonalds_completed

Wrapped up four months as a data engineer at McDonald’s China Data Strategy Department. Came away with hands-on experience translating fuzzy business questions into validated enterprise data maps, navigating the trade-offs between offline retrieval quality and production latency, and learning how an AI agent earns trust in a non-technical analyst’s daily workflow.结束在麦当劳中国数据战略部门为期四个月的数据工程师实习。收获了将模糊业务问题转化为可验证的企业级数据地图的实战经验，理解了离线检索质量与线上延迟之间的权衡，也学到了如何让一个 AI agent 真正融入非技术分析师的日常工作流。