Sergio Vazquez Lemus

About Sergio Vazquez Lemus

Data science practitioner with 10+ years of experience designing and implementing machine learning models for predictive, classification, and unsupervised learning tasks, as well as leading teams to drive data-informed decisions and strategic insights. Passionate about advancing data science methodologies, exploring state-of-the-art machine learning techniques, and applying ethical and responsible data practices.Eager to continuously learn new skills, explore emerging domains, and collaborate with professionals from diverse backgrounds and industries.

Experience

1. Data Science Senior Director - Visa Consulting & Analytics Lac

   Visa

   Aug 2021 — Present · Miami-Fort Lauderdale, FL, US

   Led data science initiatives across the organization to develop strategic solutions such as recommender systems, churn models, travel forecasts, and segmentation, resulting in increased client retention and engagement. Managed a geographically dispersed team of data scientists, leveraging multiple internal and external data sources and a diverse set of machine learning algorithms to deliver impactful client solutions. Championed advanced training for global data science teams in deep learning, model explainability, generative AI, and vector databases, boosting expertise and driving innovation across the organization.

Education

• Harvard Extension School

  Candidate Master of Liberal Arts, Data Science

• University of Florida

  M.S., Statistics

  2004 — 2006

• Universidad Nacional Autónoma de México

  B.S., Actuarial Science (Actuaría)

  2004

Skills

• Strategic Planning
• Tableau
• Statistical Modeling
• Microsoft Excel
• Credit Scoring
• Data Management
• Statistics
• Forecasting
• Microsoft Access
• Access
• Mis
• Margin Lending
• Sas
• Leadership
• Microsoft Powerpoint
• Portfolio Management
• Business Intelligence
• Analytics
• Banking
• Risk Management
• Data Analysis
• Credit Risk
• Hadoop
• Management
• Sql
• Data Visualization
• Unix
• Predictive Modeling
• Analysis
• Data Science
• Spss
• Data Mining
• Microsoft Office
• Analytical Skills
• Big Data