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akaleniuszka/README.md

Hi, I'm Alfredo Kaleniuszka

Senior Data Analyst / Analytics Engineer specialized in Business Intelligence, Forecasting, Pricing Analytics, and Data Automation.

I have over 15 years of SQL experience and 5+ years working with Python and BI platforms, building analytics pipelines, dashboards, and data-driven solutions for business decision-making.

Currently expanding into AI, automation workflows, and cloud-based analytics solutions.

About Me

  • 15+ years working with SQL
  • 5+ years using Python and Power BI
  • Experience in Business Intelligence, Forecasting, Pricing Analytics and ETL pipelines
  • Experience working with datasets ranging from millions of records to terabytes
  • Background delivering analytics and BI solutions in consulting environments
  • Currently working with AI workflows, n8n automation, and Google Cloud Platform
  • Starting a Master’s Degree in Artificial Intelligence (2026)

Tech Stack

Data & Analytics

  • SQL
  • Python
  • Pandas
  • NumPy
  • Scikit-learn

Business Intelligence

  • Power BI
  • Tableau
  • Looker
  • Advanced Excel

Data Engineering

  • ETL Pipelines
  • Data Warehousing
  • Talend
  • SSIS

Cloud & Data Platforms

  • Google Cloud Platform
  • BigQuery
  • Vertex AI

Automation & AI

  • n8n
  • AI-driven workflows
  • dbt (learning)

Portfolio Projects

Here are some projects demonstrating my experience in analytics, forecasting, business intelligence, and AI-driven automation.

Demand Forecasting for Retail Operations

Time series forecasting project analyzing historical demand to support operational planning and resource optimization.

Repository
https://github.com/akaleniuszka/demand-forecasting-retail

Customer Churn Prediction

Machine learning project focused on identifying customers at risk of churn and supporting retention strategies through predictive analytics.

Repository
https://github.com/akaleniuszka/customer-churn-prediction

Pricing Analytics Dashboard (to be updated)

Business intelligence project analyzing pricing trends, cost behavior, and margin optimization using dashboards.

Repository
https://github.com/akaleniuszka/pricing-analytics-dashboard

AI Automation Pipeline with n8n (to be updated)

Automation workflow integrating data ingestion, AI classification, and automated reporting using n8n.

Repository
https://github.com/akaleniuszka/ai-automation-n8n-lead-scoring

Machine Learning with Google Cloud (to be updated)

Cloud-based ML project using BigQuery, Vertex AI, and Python.

Repository
https://github.com/akaleniuszka/gcp-vertexai-ml-project

Certifications

  • Google Cloud Certified – Generative AI Leader
  • Google Cloud Certified – Cloud Digital Leader
  • Power BI Data Analyst Associate
  • Tableau Desktop Specialist
  • Oracle Machine Learning Certified Associate
  • Cambridge English C1 Advanced

Contact

Email
alfredo.kaleniuszka@gmail.com

LinkedIn
https://www.linkedin.com/in/alfredo-kaleniuszka

Website
https://alfredokaleniuszka.com

Portfolio
https://github.com/akaleniuszka/portfolio

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