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AndreWal/README.md

Hi there 👋

I'm working at the intersection of applied statistics, machine learning, and data engineering.

About me

I’m a data-driven researcher with expertise in applied statistics, causal inference, and machine learning. My background in quantitative political science has given me broad experience working with high-dimensional, messy, and often spatially structured data. I enjoy building end-to-end analytical workflows: Cleaning and engineering data, designing identification strategies, developing predictive or causal models, and deploying reproducible pipelines that others can build on. Across my projects I’ve worked with causal inference frameworks (RDD, IV, diff-in-diff, matching), classical and modern ML methods, geospatial toolchains, and data engineering techniques for structuring large-scale workflows.

Skills & Expertise

  • Causal inference (RDDs, Instrumental Variables, Panel & Time Series Data)
  • Spatial econometrics
  • Machine learning & LLMs
  • Data Engineering

🧰 Tech Stack

Category Tools
Stats & ML & GIS Python R QGIS
Workflow & Containers Docker Airflow
Databases PostgreSQL
Version Control Git GitHub
Web HTML5 CSS3
Typesetting LaTeX
Scripting & OS Bash Linux

Top Langs

Contact

📫 Connect with me on LinkedIn.

Pinned Loading

  1. VoxSurvey VoxSurvey Public

    Python pipeline for ingesting VOX survey data from Swissvotes, harmonizing core variables, and loading analysis-ready data into PostgreSQL for statistics and machine learning.

    Python

  2. SpatialML_Population SpatialML_Population Public

    End-to-end ETL + spatially aware ML workflow that harmonizes admin-boundary population panels, extracts raster/geometric features, runs spatial block cross-validation (GBM/RF engines), and outputs …

    R

  3. SLM_survey_predictions SLM_survey_predictions Public

    Predicting Swiss referendum votes from survey profiles using local small language models (SLMs).

    Python 1

  4. collection-stats collection-stats Public

    Practice-oriented articles on interpreting regression models and making defensible analytical decisions.

    HTML

  5. swiss_votes swiss_votes Public

    Comprehensive dataset of municipality-level voting outcomes for Swiss popular votes from 1866 to 2023.

  6. atlas atlas Public

    Data on the Extended Ethnographic Atlas

    2