# Eugenio "Jay" Zuccarelli > Eugenio "Jay" Zuccarelli is an AI and machine learning engineer who builds applied AI/ML systems across the full lifecycle — from research and modeling to production deployment. He specializes in agentic AI, generative models, retrieval-augmented generation (RAG), reinforcement learning from human feedback (RLHF), and causal inference. He is an open-source contributor to the Python and Julia ecosystems. ## Identity - Full name: Eugenio Zuccarelli - Also known as: Jay Zuccarelli - Website: https://eugeniozuccarelli.com/ - GitHub: https://github.com/jayzuccarelli - LinkedIn: https://linkedin.com/in/jayzuccarelli - X (Twitter): https://x.com/jayzuccarelli ## Focus areas - Applied AI: agentic AI, generative models, production AI, retrieval-augmented generation, evals, RLHF - ML modeling: supervised, unsupervised, and reinforcement learning; feature engineering; model selection; hyperparameter tuning - Data science: experimentation, causal inference, forecasting, decision systems ## Stack Python, PyTorch, TensorFlow, AWS, GCP, SQL, Spark, Docker, Kubernetes, Git, Linux, Bash. ## Open-source projects - [autofill](https://github.com/jayzuccarelli/autofill): AI-powered form autofill agent built on browser-use. Describe yourself once, point it at any web form, and it fills every field automatically; the user reviews and submits manually. - [sparseregression](https://github.com/jayzuccarelli/sparseregression): Python library implementing sparse regression for high-dimensional data with automatic feature selection. Published on PyPI with 5,000+ downloads. - [GradientBoosting.jl](https://github.com/jayzuccarelli/GradientBoosting.jl): Julia implementation of gradient boosting for training and prediction. Registered in the official Julia package registry, installable via Pkg.jl.