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Senior OLAP Expert, Big Data & Data Warehouse
ByteDance • Full-time
Oct 2021 - Jun 2023 • 1 yr 8 mos
Designed and built a streaming acceleration layer on a Hudi data lake, cutting data visibility from minutes to seconds for PB-scale analytics across Douyin and e-commerce. Optimized Flink streaming and led the 0-to-1 design of unified batch/stream lakehouse products. Contributed to patent applications and on-call governance.