JSJorge Sanchez
@jorgesanchez1
Senior data scientist specializing in generative AI and production ML systems.
United StatesWhat I'm looking for
I am a Senior Data Scientist with extensive experience building production-scale machine learning systems, specializing in generative AI, recommendation engines, and MLOps. At Meta, I led transformer-based LLM recommendation work that increased Reels engagement by 18% month-over-month across 200M+ users and implemented RAG semantic search and fraud detection solutions that materially improved advertiser match rates and reduced fake account creation.
I have a strong background in causal inference, uplift modeling, and large-scale ETL on cloud platforms, with prior impact at Amazon and Aetna delivering revenue uplifts, cost savings, and improved quality metrics. I engineer robust CI/CD and monitoring pipelines (MLflow, Docker, Kubernetes, Databricks) and enjoy collaborating cross-functionally to turn research into measurable business outcomes.
Experience
Work history, roles, and key accomplishments
MESenior Data Scientist
Meta
Jan 2022 - Present (3 years 8 months)
Orchestrated development of a Generative AI–powered recommendation engine using transformer LLMs, boosting Reels engagement by 18% MoM across 200M+ users and engineered personalized ranking models that increased session time by 10%.
AMBuilt personalized Prime Video recommendation engines and uplift A/B testing platform, increasing watch-time per user by 12% and enabling pricing experiments that produced $95M incremental annual revenue. Streamlined ETL with PySpark and AWS, reducing training cycle time by 40%.
AEData Scientist
Aetna
Jul 2017 - May 2019 (1 year 10 months)
Developed Medicare Stars quality scoring and patient risk stratification models, improving CMS quality measures by 7% and enhancing early identification of high-risk members by 21%. Implemented predictive medication adherence solutions reducing gaps by 15%.
Education
Degrees, certifications, and relevant coursework
WUWright State University
Master's Degree, Computer Science
2015 - 2017
Completed a Master's Degree in Computer Science with coursework and projects in advanced machine learning and data systems from 2015 to 2017.
WUWright State University
Bachelor's Degree, Computer Science
2012 - 2015
Completed a Bachelor's Degree in Computer Science with foundational coursework in programming, algorithms, and data structures from 2012 to 2015.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
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