Yifeng Chen is a Data Infrastructure Software Engineer at Apple at Apple. Colleagues describe them as "I had the pleasure of working with Yifeng for nearly 4 years as the architect and data governor at Houzz. During his tenure at Houzz, Yifeng consistently demonstrated high motivation, drive and great coding and communication skills. He took full ownership of impactful initiatives and conducted himself with elegance and professionalism. As the architect and data governor, I had the opportunity to closely observe Yifeng's contributions. He played a crucial role in our data infrastructure, particularly in contributing to our Hive-based Data Warehouse pipeline. Yifeng provided guidance to engineers and data scientists, offered on-call support, and developed custom tools for effectively monitoring and managing the cluster. His expertise and dedication significantly improved the efficiency and reliability of our data processing pipeline. Furthermore, Yifeng took on additional responsibilities in the past two years under my guidance. He led the development and launch of our highly customizable CDP (Customer Data Platform). This platform successfully handles high event processing capacity using Kafka and Flink, seamlessly connects with multiple endpoints such as Amplitude, Blueshift and S3, and effectively utilizes Elastic Search. Yifeng demonstrated exceptional ownership and collaboration skills while working with both third-party vendors and internal stakeholders, resulting in a highly successful integration. It has truly been a pleasure working with Yifeng, and I have no doubt that he will bring great value and inspiration to any team he joins. His technical expertise, strong work ethic, and ability to drive impactful projects make him an outstanding contributor. I wholeheartedly recommend Yifeng for any position he pursues."