About

Yumin Zhang is a highly skilled and experienced Software Engineer currently working as an SDE1 at Amazon, in the Your Orders team. With over 1.35 years of relevant experience, Yumin has gained expertise in a variety of tech stacks, including Backend, Web, Java, Hadoop, Spring, ETL, Integration, and Computer Vision. Yumin's current role at Amazon involves working in the Website Customer Service team, which is responsible for the Your Orders web page on the Amazon shopping portal. Yumin's focus is on migrating from the old platform to the new one, ensuring a seamless transition for customers. Prior to joining Amazon, Yumin worked as a Software Engineer - Backend at Tencent. In this role, Yumin developed in-vehicle software backends that could play music, radio, and talk shows, and analyzed user activity data. Yumin also applied Hadoop clustering and stored data in day-partitioned HIVE tables on warehouse system platforms, ETL raw data, and refactored with metrics like total amount, incremental amount, and DAU. Yumin monitored memory and CPU usage in YARN logs and decided whether to reduce computation workload or apply for extra resources according to specific circumstances. Yumin also developed music recommendation and interface calling features based on the Spring Framework in Java with the integration and usage of encapsulated REST API. Yumin has also worked as a Software Engineer - Junior Researcher at SenseTime. In this role, Yumin conducted research on Camera Dependency in Image Recognition (Computer Vision), applied SDK to control Basler acA1920-40gc industrial cameras to sample image collection under different distances, lighting, and vehicle speed (Pylon Viewer), built models to adjust gain, black level, gamma coefficient, white balance to improve image recognition (Matlab, OpenCV), and simulated camera ISP effect with SDK models based on street shoot collected data. Yumin has a Master's degree in Information from the University of Michigan School of Information and a Bachelor's degree in Electrical and Computer Engineering from Shanghai Jiao Tong University. With a strong academic background and extensive industry experience, Yumin is a highly skilled and motivated Software Engineer with a proven track record of success.