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DagoMares/README.md

Hi there, I'm Dagoberto Mares 👋

Data Analyst | Statistical Modeling & A/B Testing Specialist

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🚀 About Me

I am a Data Analyst specializing in Business Intelligence with a robust foundation in Applied Mathematics. I excel at bridging the gap between advanced statistical methods (Hypothesis Testing, GMM) and actionable business insights. My expertise involves transforming complex data into strategic visualizations and narratives that drive decision-making.

  • 🔭 I’m currently working on: Optimizing sales funnels through rigorous A/B/n Testing and statistical analysis.
  • 🎓 Background: University Instructor in Physics & Math, enabling me to break down complex concepts into clear Data Storytelling.
  • 🔬 Research: Published author in Statistical Classification and Mathematical Modeling (MDPI).
  • 💡 Soft Skills: Critical Thinking, Hypothesis-Driven Problem Solving, Cross-functional Collaboration.

💼 Professional Experience

Data Analyst (Project-Based) | TripleTen (Aug 2025 – Nov 2025)

  • Executed 10+ full-cycle analysis projects, transforming ad-hoc business inquiries into actionable data assets regarding e-commerce and finance.
  • Developed interactive BI dashboards in Tableau, enabling stakeholders to track critical metrics like LTV, CAC, and Conversion Rates.
  • Orchestrated ETL processes using SQL and Python to clean and integrate data, ensuring high data integrity.
  • Validated strategic hypotheses using statistical methods to identify inefficiencies and support go/no-go decisions.

University Physics Instructor & Research Mentor | Autonomous University of Aguascalientes (Jan 2025 – Present)

  • Data Storytelling: Translated complex mathematical models into accessible insights for undergraduate audiences.
  • Performance Metrics: Analyzed student performance data to optimize instructional strategies, resulting in a 30% improvement in pass rates.
  • Research Supervision: Guided students through hypothesis formulation, data collection, and statistical validation of results.

🛠 Tech Stack & Tools

  • Analysis & Programming: Python (Pandas, NumPy, SciPy), R (ggplot2), SQL, Snowflake, MATLAB.
  • Visualization: Tableau, Power BI, Matplotlib, Seaborn.
  • Statistical Methods: A/B Testing, Hypothesis Validation (T-test, Mann-Whitney, ANOVA), Regression Analysis, GMM.

📂 Featured Projects

Project Description Stack
Recommender System Impact A/B Test Evaluation. Analyzed 423,000+ user events across EU, NA, APAC, and CIS regions. Validated negative impact of a new recommender system using Z-tests, preventing potential revenue loss by advising against deployment. Python Pandas SciPy
Food App UX Analysis A/A/B Testing. Analyzed 244,000+ events to validate font design changes. Utilized Mann-Whitney U tests with Šidák correction to ensure changes did not negatively affect the sales funnel. Python Seaborn Stats
Call Center Efficiency KPI Definition. Processed 53,000+ call records for 1,000+ operators. Identified underperforming agents and defined efficiency thresholds based on statistical percentiles to improve retention. Tableau Python EDA
Galaxy Cluster Classification Unsupervised Learning. Processed 71,000+ observations in a 6-dimensional space. Developed an optimized algorithm using Gaussian Mixture Models (GMM) and Mahalanobis distance for robust outlier rejection. R GMM Statistics

🎓 Education

  • MSc in Applied Mathematics (In Progress) | Autonomous University of Aguascalientes (Expected 2026)
  • Professional Certificate in Data Analytics | TripleTen (2025)
    • 400+ hours focused on SQL, Python, and Tableau applied to business scenarios.
  • BSc in Applied Mathematics | Autonomous University of Aguascalientes (2019 – 2024)

🌐 Languages

  • Spanish: Native
  • English: B2 - Professional Working Proficiency
  • French: B1 - Intermediate

📬 Let’s Connect

I’m open to collaborations on Data Science projects and innovative research. Email Me

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  1. DagoMares DagoMares Public

    My public profile

  2. discrete-bifractional-sine-gordon-solver discrete-bifractional-sine-gordon-solver Public

    Implementation in MATLAB of a finite differences model (Crank-Nicolson of second order) for the 2D Sine-Gordon Bifractional Dissipative Equation.

    MATLAB

  3. showz-marketing-analytics-ltv-romi showz-marketing-analytics-ltv-romi Public

    Análisis de la rentabilidad del marketing de Showz, una plataforma de venta de entradas. Cálculo de métricas clave (LTV, CAC, ROMI, DAU/WAU/MAU) para optimizar el presupuesto y las estrategias de a…

    Jupyter Notebook

  4. vehicle-price-eda vehicle-price-eda Public

    Análisis Exploratorio de Datos (EDA) del Precio de Vehículos Usados

    Jupyter Notebook

  5. Data-Driven-UX-FoodApp-AAB-Test Data-Driven-UX-FoodApp-AAB-Test Public

    Análisis del Embudo de Conversión de una aplicación de e-commerce de alimentos y evaluación de un Test A/A/B para un cambio de fuentes.

    Jupyter Notebook