Su Liu
Data Scientist in ML
- Role
- Data Scientist at Amazon
- Location
- San Francisco, CA, US
- LinkedIn followers
- 500 followers
About Su Liu
DS in ML role with 5+ years of experience building and deploying machine learning…
Experience
Data Scientist
Jun 2022 — Present · Sunnyvale, CA, US
Information extraction model fine-tuning and engineering serving cross-org product database: Built an end-to-end MarkupLM pipeline for web product information extraction, expanding domain coverage from 92 to unlimited and eliminating annotation for new websites.2. Multimodal measurement framework for integrity and quality supporting Alexa and Nova: Led cross-functional development of an automated multimodal evaluation framework (text + image), reducing manual review by 4 hours daily and supporting daily model monitoring.3. MLOps for LLM deployment serving high-throughput production traffic: Built scalable classification pipelines for query categorization, integrated into a data lake infrastructure that processes millions of queries per hour, automating inference and eliminating the need for manual labeling.4. Improving key metrics in Alexa recommendation and retrieval system: Improved Alexa trending data pipeline, achieving 3X F1 score for trending topic coverage through better data source integration and ranking logic.
Education
North Carolina State University
Master of Science - MS, Co-major in Statistics and Genomics
Beijing Forestry University
Bachelor's degree
Georgia Institute of Technology
Master of Science - MS, Computer Science
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