Xiang Li

About Xiang Li

Senior Data Scientist with 8 years in consumer tech, specializing in LLM evaluation, experimentation, and product analytics. Architected LinkedIn’s offline eval system for Semantic Job Search from scratch — the mandatory go/no-go gate for every model launch, co-authored in a research paper, unlocking +1.3% DAU. Also an independent AI builder: shipped AI courses, consulting engagements, and AI-native products.

Experience

1. Senior Data Scientist - Job Marketplace

   Linkedin

   Dec 2022 — Present

   Architected LinkedIn’s LLM offline evaluation system for Job Search — full pipeline: sampling, simulation, LLM-based grading, metric definition, and query tagging. Established it as the mandatory go/no-go gate for all Semantic Job Search model ramps. Unlocked semantic search deployment that drove +1.3% LinkedIn DAU, the company’s largest single metric movers in 2025. Co-authored research paper on the methodology (arxiv.org/abs/26•••••40).• Led several 0-to-1 job products (Job Seeker Agent, Job Collection etc.): defined success metrics, ramp strategy, and A/B tests to assess product-market fit and optimize engagement. Insights together drove $8.8M in LinkedIn premium sign-ups and retention.• Developed an AI-powered analytics tool for user-agent conversations, adopted by 5 teams in 3 months to optimize agent insights & decision-making. Drove Job Seeker Agent prioritization (+9.1% retention,$6.8M revenue impact) and validated LinkedIn Sell Agent, making it a strategic company priority.• Served as LinkedIn’s internal AI productivity evangelist: delivered organization-wide knowledge-sharing sessions on AI-augmented workflows, and presented LinkedIn’s AI-Augemented data science practice at Grace Hopper Conference (GHC25).

Education

• Xiamen University

  Bachelor's degree, Finance

• Bentley University

  Master in Business Analytics

• University College Dublin

  Business

  2015 — 2015

Skills

• Statistics
• R
• Spss
• R Programming
• Data Analysis
• Microsoft Excel
• Research
• Microsoft Office
• 财务分析
• Analytics
• Management
• Marketing Research
• Microsoft Powerpoint
• Microsoft Word
• Team Building
• Customer Service
• Social Media
• Tableau
• Sql
• Matlab
• Market Research
• Leadership
• Sas
• Python