About
I’m an engineer and data professional with a strong business foundation, passionate about using technology to make smarter business decisions.
My MBA gave me a strategic perspective , understanding how companies grow, allocate resources, and identify new opportunities. Later, I completed an MSc in Data Science to strengthen my technical skills and stay ahead of emerging technologies.
Today, I focus on data-driven go-to-market automation, combining Python, SQL, and Clay to build scalable workflows that connect marketing, sales, and analytics.
I enjoy designing systems that help teams move faster , whether it’s automating lead enrichment, optimizing data pipelines, or integrating new tools into the GTM stack.
Experience
- Senior Data Scientist, full-time,Spain, 09/23 - present
- Developed fraud-detection pipelines using Oracle SQL, SAS and Python.
- Built cross-table matching logic for compromised cards, threat intelligence and suspicious financial activity.
- Migrated and optimized large fraud-analysis queries to Python (Pandas/Polars).
- Designed Power BI and Microstrategy dashboards for fraud KPIs and alert analysis.
- Collaborated with cybersecurity teams to improve detection accuracy and reduce false positives
Testimonial
Jeff is a really talented data scientist that has been delivering top notch results quickly. His turnaround times are impressive and his work product is clean, detailed, and has been exactly what we needed every time.
