# Do Automated Evals Work? > Source: > Published: 2026-07-11 07:00:00+00:00 # Hamel Husain’s Blog Notes on applied AI engineering, machine learning, and data science. I’m a machine learning engineer with 20+ years of experience. I’ve worked at Airbnb and GitHub, including early LLM [research](https://arxiv.org/abs/1909.09436) used by OpenAI for [code understanding](https://openai.com/index/introducing-text-and-code-embeddings). I’ve also led and contributed to popular [open-source](./oss/opensource.html) machine-learning tools. I’m currently working to bring data science back to AI: helping teams debug, analyze, and measure their systems. I call this “evals,” and it’s the focus of my teaching, consulting, and writing. ## 🎓 Learn With Me I co-teach ** AI Evals for Engineers and PMs**, with over 4,500 students from 500+ companies (including OpenAI, Anthropic, and Google). Check the page for upcoming cohorts. ## 📮 Blog I often share my experience building AI products. Below is a selection of my long-form writing. No matching items ## 📬 Follow Me The best way to follow my activity is [X (Twitter)](https://twitter.com/HamelHusain).