Haodong Liu is an advertising algorithm engineer based in Chaoyang District, Beijing, with nine years of experience focused on ad business systems. Currently at ByteDance since 2022, he applies production-grade recommendation and targeting models to scale high-throughput ad serving. His background centers on practical algorithm engineering—bridging research-class models with latency and cost constraints in live ad platforms. Familiarity with TikTok-related ecosystems suggests hands-on experience tuning models for short-form content and real-time engagement signals. Colleagues describe him as a pragmatic problem-solver who prioritizes measurable ROI and system reliability. Outside core work he likely experiments with platform-specific optimizations that improve both click-through and user experience.
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