Senior Data Scientist

Cecilia Regueira

Turning complex data into decisions people can act on.

More than ten years across higher education, government, international organizations, consulting and private industry — leading work in predictive analytics, machine learning, geospatial intelligence, forecasting and business intelligence. Plus free courses and practical resources so you can do the same.

10+ Years in analytics 5 Sectors served 3 Graduate courses taught 100% Free learning content Higher education · Government · International organizations · Consulting · Private industry
Portrait of Cecilia Regueira

Cecilia Regueira

Senior Data Scientist · Educator

About

Bridging advanced analytics and real business needs

Senior Data Scientist with 10+ years turning complex data into decisions — across higher education, government, international organizations, consulting and industry. Predictive analytics, machine learning, geospatial intelligence, forecasting and business intelligence.

I also teach graduate courses in data visualization, statistics and data science, and mentor new professionals. That is why every course here is published openly — no account, no paywall.

Data Science & ML

Python R scikit-learn XGBoost

Business Intelligence

Power BI Tableau SQL DAX

Geospatial

ArcGIS QGIS GeoPandas Folium

AI & Engineering

LLMs RAG Streamlit Git
Portfolio

Projects, dashboards and case studies

Selected work across data science, analytics, GIS, business intelligence and AI. Select a project to read the problem, approach and outcome.

Data Science

Institution-Wide Enrollment Forecasting

Forecasting models that project enrollment by program, term and student segment to support budgeting and capacity planning.

Python SQL Time Series Power BI
Machine Learning

Financial Aid Optimization

Predictive modelling and optimization to allocate aid dollars where they most improve enrollment and persistence.

Python scikit-learn Optimization SQL
Machine Learning

Fraud Detection System

An anomaly detection system that surfaces suspicious applications and transactions for human review.

Python XGBoost SHAP Imbalanced Learning
GIS

Interactive Geospatial Dashboards

Location intelligence dashboards mapping demand, access and service coverage for planning and outreach teams.

ArcGIS GeoPandas Folium Power BI
Business Intelligence

Business Intelligence & Data Warehouse Build

A governed data warehouse and reporting layer replacing fragmented, hand-built spreadsheet reporting.

SQL Server ETL Star Schema Power BI
AI

AI-Powered Academic Assistant

A conversational assistant that answers statistics and methodology questions for students using curated course material.

Python LLMs RAG Streamlit
AI

Statistics Q&A Learning Tool

An interactive statistics question-and-answer resource built for graduate students and mentees.

R Quarto Statistics
Research

Research, Publications & Presentations

Applied research and conference work spanning analytics methodology, education outcomes and data-driven decision making.

R Statistics Research Design Quarto

Experience

10+ years
  1. 2019 — Present

    Senior Data Scientist & Analytics Lead

    Higher Education

    Predictive analytics, enrollment forecasting, financial aid strategy, data warehouse development and executive reporting.

  2. 2016 — 2019

    Data Analyst & Consultant

    Government & International Organizations

    Geospatial analysis, program evaluation and business intelligence for public sector and international development programs.

  3. 2014 — 2016

    Business Intelligence Analyst

    Consulting & Private Industry

    Data warehouse modelling, dashboard development and analytics automation for operational and finance teams.

  4. Ongoing

    Graduate Instructor & Mentor

    Data Visualization, Statistics, Data Science

    Teaching graduate-level courses, mentoring aspiring analysts, and building open educational resources.

Certifications & training

6 credentials
  • Microsoft Certified

    Power BI Data Analyst Associate

    Semantic modelling, DAX and enterprise report deployment.

  • Esri

    ArcGIS Desktop & Spatial Analysis

    Spatial statistics, service-area and hot-spot analysis.

  • Specialization programs

    Machine Learning & Data Science

    Supervised learning, model evaluation and deployment practice.

  • Graduate-level instruction

    Statistics & Data Visualization

    Certified to teach graduate methodology and visualization courses.

  • Professional certifications

    SQL & Data Warehousing

    Dimensional modelling, ETL design and performance tuning.

  • Applied training

    AI & Generative AI Applied

    LLM application design, RAG pipelines and responsible use.

Learning

Courses and tutorials from real project work

Practical lessons drawn from analytics, GIS and BI engagements — worked examples, code you can reuse, and the reasoning behind each decision.

Support the work

Found something useful? Coffee keeps it coming.

If a course, script or tutorial saved you time, a small contribution funds new lessons and open datasets.

Buy me a coffee
Services

Consulting, training and mentorship

Work with me directly — as an embedded analytics partner, a workshop facilitator, or a mentor for your next career step.

Data science & analytics consulting

Data science & analytics consulting

Predictive modelling, forecasting, optimization and data warehouse design — from scoping the question to a model your team can maintain.

  • Predictive & forecasting models
  • Data pipelines and warehousing
  • Executive dashboards & KPIs
GIS & geospatial intelligence

GIS & geospatial intelligence

Spatial analysis and interactive mapping for planning, service coverage, site selection and program evaluation.

  • Spatial statistics & modelling
  • Interactive web maps
  • Location strategy analysis
Training & workshops

Training & workshops

Hands-on team training in Python, SQL, Power BI, statistics and data visualization, tailored to your data and your tools.

  • Custom curriculum
  • Live or remote delivery
  • Practical, dataset-based exercises
Mentorship

Mentorship

1:1 mentoring for analysts and career changers moving into data science, analytics or GIS roles.

  • Portfolio & project review
  • Technical skill roadmap
  • Interview and career coaching

Have a project in mind?

Tell me what you are working on — consulting, a workshop or mentorship — and I will get back to you personally.

Shop

Scripts, templates, datasets and workbooks

Production-ready resources that pick up where the free courses end. Instant download after checkout.

Contact

Let's talk about your data

Consulting, training, mentorship, speaking or a question about a course — the fastest way to reach me is the inquiry form, but email works just as well.

Book a call