I build recommendation systems and AI-powered experiences that serve customers at scale. Currently, I'm a Senior Applied Scientist at Amazon. Outside of work, I also...

• Write,speak, andprototype on ideas in machine learning, RecSys, and LLMs.
• Teach how to apply ML/LLMs effectively atApplyingML.com &Applied-LLMs.org.
• Send a newsletter about data, ML, and what I'm learning to 10,000+ subscribers.
• In 2025 I'm learning:Improving RecSys with LLMs, iOS apps, career meta thinking.
• Fun fact: I don't use the QWERTY keyboard (I useDvorak instead).

• Evaluating Long-Context Question & Answer Systems - Sun, 22 Jun 2025
• AI Engineer 2025 - Improving RecSys & Search with LLM techniques - Wed, 04 Jun 2025
• Exceptional Leadership: Some Qualities, Behaviors, and Styles - Sun, 18 May 2025
• Building News Agents for Daily News Recaps with MCP, Q, and tmux - Sun, 04 May 2025
• An LLM-as-Judge Won't Save The Product—Fixing Your Process Will - Sun, 20 Apr 2025

View the archives (206 posts) @eugeneyan.com.

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1. applied-mlapplied-mlPublic

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3. open-llmsopen-llmsPublic

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5. news-agentsnews-agentsPublic

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6. testing-mltesting-mlPublic

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