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Alexis Roldan
Sr. Data Engineer & Data Scientist
Full-Stack Data Scientist & Sr. Data Engineer with 10+ years in biopharma, skilled in Advanced Analytics, AI/ML, and designing scalable End-to-End solutions for data-driven decision-making.
Professional Experience
Sr. Data Engineer & Data Scientist (Sr. Manager)
Takeda Pharmaceutical
Los Angeles, CA
Current - 25-Apr
- Leading LA Digital Roadmap & AI/ML development with 30+ solutions deployed to production.
- Designing, building, and maintaining local data pipelines for critical business data.
- Architected hybrid RAG systems achieving 70% token reduction and 59% deviation reduction.
- Built agentic BI dashboards and AI-powered text-to-SQL applications for quality management.
Data Scientist III (Sr. Manager)
Takeda Pharmaceutical
Los Angeles, CA
25-Mar - 22-Nov
- Drove AGILE 4.0 Digital Workstream, executing local and global GMS/GQ big data and analytics strategy.
- Performed deep-dive analysis into FrIV1 filtration using advance analytics, reducing cycle time by ~25% (over +$2.0M/yr savings).
- Developed scalable End-to-End solutions for commodity transaction monitoring and C3ME JDE work order search, improving efficiency by 75% via text analytics, NLP, and MLOps.
Data Scientist II (Manager)
Takeda Pharmaceutical
Los Angeles, CA
22-Nov - 21-Apr
- Achieved ~50% reduction in process variation via digital twin models (PIMS project).
- Developed scalable end-to-end solutions using text analytics and MLOps, improving deviation search and analytics by 80% and integrating NLP for risk recommendations.
- Los Angeles lead data scientist for global initiative to migrate data sources to cloud services and develop Dimensional Data Models for all GMS/GQ sites.
Education
Optimizing Performance in Shiny
ShinyConf 2025
Virtual
2025
Oxford ML Summer School
AI for Global Goals
Oxford, UK
2023
Data Science Professional
Harvard
Cambridge, MA
2021
Statistical Learning, Inference & Modeling
HarvardX / Stanford Online
Online
2020
Computer Science
Cal State Northridge
Northridge, CA
2010