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Ogarit/README.md

Tiago Marques Lima

Data Analyst | Business Intelligence | Data Automation

Transforming raw data into insights, dashboards and automated solutions that support better business decisions.

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📊 Data-driven decision making

I am a Data Analyst focused on transforming complex and fragmented data into clear information that supports decision-making.

My work combines:

  • Data Analysis — exploring data, identifying patterns and generating actionable insights
  • Business Intelligence — building dashboards and KPIs for monitoring performance
  • Automation — reducing manual and repetitive processes with Python
  • Data Engineering foundations — working with data cleaning, ETL and SQL
  • Applied Analytics — customer segmentation, marketing analysis and business performance

🎓 Background in Information Systems
📍 Brazil | Open to remote opportunities


🛠️ Tech Stack

Data & Programming

PythonSQLPandasNumPy

Analytics & BI

Power BIData VisualizationEDAKPI Development

Data Processing

ETLData CleaningData ModelingAutomation

Analytics & Machine Learning

Customer SegmentationRFM AnalysisRegressionClustering


🚀 What you will find here

This GitHub contains projects focused on solving real analytical and business problems.

📈 Business & Sales Analytics

Analysis of commercial data to identify performance patterns, trends and decision-making opportunities.

🎯 Marketing Analytics

Projects focused on evaluating marketing performance, ROI and the relationship between investment and business results.

👥 Customer Analytics

Customer segmentation using analytical techniques such as RFM Analysis and clustering.

⚙️ Data Automation

Automated solutions for repetitive processes, reporting and data processing using Python.

🧠 Data & AI

Experiments involving ETL, APIs, machine learning and applied generative AI.


📌 Featured Projects

Explore the repositories below to see practical applications of:

  • 📊 Exploratory Data Analysis
  • 📈 Business Performance Analysis
  • 🎯 Marketing Analytics
  • 👥 Customer Segmentation
  • 🤖 Process Automation
  • 🧠 Applied Machine Learning

My objective is to bridge the gap between data and decision-making — transforming raw information into measurable business value.

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  1. analise_transacoes_comerciais analise_transacoes_comerciais Public

    Análise de dados aplicada a transações comerciais para geração de insights estratégicos e apoio à tomada de decisão / Data analysis applied to commercial transactions to generate strategic insights…

    Jupyter Notebook 2

  2. Analise_do_Setor_de_Marketing-Empresa_Ficticia Analise_do_Setor_de_Marketing-Empresa_Ficticia Public

    Análise de dados aplicada à tomada de decisão em marketing, transformando investimentos em insights estratégicos orientados a resultados. / Data analysis applied to marketing decision-making, trans…

    Jupyter Notebook 1

  3. Analise_Exploratoria_RFM_Transacoes_Comerciais Analise_Exploratoria_RFM_Transacoes_Comerciais Public

    Análise e limpeza de dados de transações comerciais para garantir a confiabilidade da base e apoiar decisões estratégicas de vendas e fidelização. / Commercial transaction data analysis and cleanin…

    Jupyter Notebook 1

  4. Clusteriza-o_e_Analise_de_Dados_de_um_E-Commerce Clusteriza-o_e_Analise_de_Dados_de_um_E-Commerce Public

    Projeto de clusterização de dados de e-commerce utilizando K-Means e DBSCAN para segmentar clientes e produtos.

    Jupyter Notebook 1

  5. ETL_LLM_MODELS_SCD2025 ETL_LLM_MODELS_SCD2025 Public

    Demonstração de ETL, consumo de API e aplicação de IA generativa utilizando Ollama./Demonstration of ETL, API consumption, and application of generative AI using Ollama.

    Jupyter Notebook

  6. Xbox-Revenue-and-Subscriber-Behavior-Analytics-with-Interactive-Dashboard Xbox-Revenue-and-Subscriber-Behavior-Analytics-with-Interactive-Dashboard Public

    Dashboard analítico para dados de assinaturas Xbox, focado em receita, planos, upsell e renovação automática, apoiando decisões gerenciais./Analytical dashboard for Xbox subscription data, focusing…