Eugen Hotaj is a Member of Technical Staff with 12 years of experience building and optimizing machine learning systems across Google, Meta, Perplexity, and Microsoft AI, focused on AutoML, neural architecture search, LLMs, and agentic reinforcement learning. He combines deep mathematical rigor from an NYU Mathematics and Computer Science degree with a practical engineering mindset—often digging into low-level estimator and TPU compatibility issues to squeeze performance from models in production. Notable open-source work includes refactoring TensorFlow AdaNet’s TPUEstimator to improve TPU support and summaries, reflecting a talent for making research-grade ML frameworks production-ready. Based in Redwood City, he gravitates toward post-training and agentic RL problems, bridging mid- and post-training model stages to enable scalable, search-augmented and autonomous model behaviors. Colleagues describe him as someone who prefers to truly understand systems end-to-end rather than accept opaque abstractions.
12 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree Mathematics and Computer Science, Bachelor’s Degree Mathematics and Computer Science at New York University
Fast and flexible AutoML with learning guarantees.
Role in this project:
ML Engineer
Contributions:71 commits, 1 push, 10 comments in 1 year
Contributions summary:Eugen primarily contributed to the AdaNet project by refactoring and modifying the TPUEstimator component. These changes included adapting the estimator for TPU compatibility, improving summary handling, and enhancing the model's performance when using TPU. The user's contributions focused on enabling and optimizing the use of TPUs within the AdaNet framework.
Contributions:54 commits, 3 PRs, 49 pushes in 11 months
pythonchat-appclient-serverchatchat-server
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Eugen Hotaj - Member Of Technical Staff at Perplexity