Zafir Stojanovski
Senior Machine Learning Engineer at Open-Thought
Antarctica
Summary
👤
Senior🎓
Top SchoolZafir Stojanovski is a Senior Machine Learning Engineer with nine years of experience building production ML systems that bridge research and real-world impact. He led deployment of a gigapixel kidney biopsy classifier used across US Organ Procurement Organizations and has driven drug-discovery models for DNA-encoded libraries with experimentally validated binders. A core contributor to reasoning and RL tooling, he helped develop the Reasoning Gym and authored technical sections of the RLHF Book, bringing both theoretical rigor and practical experiment infrastructure to research projects. He co-founded a startup that built web-navigation agents and has applied CV solutions in industrial manufacturing, showing versatility across domains. Based in Antarctica, he combines interests in system-2 thinking, catastrophic forgetting, and fair evaluations to focus on robust, interpretable ML that withstands deployment realities.
9 years of coding experience
1 year of employment as a software developer
Master's degree Machine Learning, Master's degree Machine Learning at University of TübingenBachelor's degree Computer Science, Bachelor's degree Computer Science at Ss. Cyril and Methodius University in Skopje / Универзитет „Св. Кирил и Методиј“ во Скопје
Github Skills (43)
transformers10
pytorch10
artificial-intelligence10
language-model10
python10
evaluation10
machine-learning10
seq2seq10
flax10
deep-learning10
tensorflow10
openai10
ai10
natural-language-processing10
bert10
Programming languages (1)
Github contributions (5)
zaf-stojano/morty
Mar 2018 - Oct 2022
Contributions:17 pushes, 1 branch in 4 years 8 months
zafstojano/reasoning-gym
Feb 2025 - Apr 2025
procedural reasoning datasets
Contributions:86 pushes, 114 branches in 1 month
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