Alexandra Teste
Principal Data Scientist I
Bellevue, Washington, United States
Summary
👤
Senior🎓
Top SchoolAlexandra Teste is a Principal Data Scientist with 11 years of experience building production ML systems that bridge research-grade models and product impact, currently at LexisNexis Legal in Bellevue. She has led end-to-end efforts from data labeling and preprocessing to fine-tuning transformers and deploying multilingual and multimodal models in production across companies like Dataminr, OfferUp, and Hirefly. Her background in space plasma physics and academia gives her a rare aptitude for breaking complex problems into tractable analytic components and communicating technical trade-offs to nontechnical stakeholders. She combines hands-on engineering (Airflow, Spark, FastText, sentence-transformers) with team leadership—setting up ML workflows, mentoring, and running cross-functional rituals to align product and engineering. Notably, she’s applied transformer fine-tuning not only for translation and sentiment but also for practical hiring-matching systems and embedding-based title recommendation. Her work emphasizes rigorous data hygiene, reproducible pipelines, and extracting measurable business value from advanced models.
11 years of coding experience
13 years of employment as a software developer
Classes Préparatoires aux Grandes Ecoles Physics-Chemistry, Classes Préparatoires aux Grandes Ecoles Physics-Chemistry at Université Paul Sabatier Toulouse IIIMaster's degree Astrophysics, Master's degree Astrophysics at Paris-Sud University (Paris XI)Ph.D. Space Plasma Physics, Ph.D. Space Plasma Physics at Pierre and Marie Curie UniversityMaster's degree Geophysics, Master's degree Geophysics at Ecole de Physique du Globe de Strasbourg (EOST)
French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (13)
deep-learning6
machine-learning6
data-augmentation5
gradient-boosting4
python4
labeling3
data-science3
training-data3
shap3
snorkel2
weak-supervision2
ai2
shapley2
Programming languages (2)
Github contributions (5)
alexandrateste/DataScienceTakeHomeChallenges
Feb 2017 - Feb 2017
Contributions:3 commits, 2 pushes, 1 branch in 4 days
alexandrateste/GettingAndCleaningData
Mar 2015 - Mar 2015
Contributions:8 pushes, 1 branch in 1 day
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