Aaron Trefler
Senior Data Scientist
Los Angeles Metropolitan Area United States
Summary
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Senior🎓
Top SchoolAaron Trefler is a Senior Data Scientist in the Los Angeles area with 11 years of experience delivering end-to-end machine learning solutions that drive measurable business outcomes. He has built and productionized recommendation and LTV-based personalization systems at scale, deployed real-time models on SageMaker, and re-factored ML pipelines using Spark/EMR to improve reliability and monitoring. His background spans nonprofit, media, and enterprise settings—from improving subscription conversion and targeted marketing to creating fraud- and success-prediction systems—combining strong feature engineering, model selection (XGBoost, scikit-learn) and data engineering skills. Aaron’s academic training in AI (MS, UCSD) and cognitive science (UCLA) informs a disciplined experimental approach rooted in statistics and reproducibility, and he has a track record of communicating technical insights to stakeholders and publishing research earlier in his career.
11 years of coding experience
7 years of employment as a software developer
University of California San DiegoUndergraduate Coursework, Math, Science, and Computer Science, 3.92, Undergraduate Coursework, Math, Science, and Computer Science, 3.92 at West Los Angeles CollegeUndergraduate Coursework, Computer Science, 4.0, Undergraduate Coursework, Computer Science, 4.0 at Los Angeles City CollegePostbaccalaureate Coursework, Computer Science, 4.0, Postbaccalaureate Coursework, Computer Science, 4.0 at California State University-Los AngelesData Science, Data Science at MOOCsUniversity of California, Los Angeles
Stackoverflow
1reputation
0reached
0answers
0questions
Programming languages (2)
Github contributions (5)
aarontrefler/ucsd-cse-291D-project
Apr 2017 - Feb 2019
Contributions:14 commits, 12 pushes, 1 branch in 1 year 10 months
aarontrefler/ucsd-soc-290-project
Oct 2017 - Aug 2020
Contributions:36 pushes, 1 branch in 2 years 10 months
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