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karinakozlowski/README.md

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Karina Kozlowski

Data-Driven Finance | BI & Cloud Automation | Advanced Analytics

I transform business challenges into scalable digital solutions that strengthen decision-making and operational efficiency. My work blends financial expertise with automation, analytics, and modern cloud architecture.

My Skills

  • Programming languages: Python R (Statistics) SQL Markdown
  • Libraries; TensorFlow Keras Pandas Numpy Matplotlib Seaborn Scikitlearn FastAPI Streamlit
  • Data Engineering tools: MySQL Postgres BigQuery MongoDB
  • BigData: Docker Apache Hadoop Apache Hive Apache Spark
  • BI Analyst; Tableau Power BI
  • IDE & version control; Git GitHub Jupyter colab Visual Studio Code RStudio
  • Cloud technologies; Render Clevercloud



Active Projects

Language Role Deployment Project Client Link
1. Python Data Engineer AWS APP NYC2050 ( In Process) Link
2. Python Machine Engineer Streamlit Fintech Fraud Transactions No Country Link
3. Python Machine Engineer FastApi API Steam Games Link
4. Python Data Analyst CleverCloud - Streamlit Dashboard Gobierno de la Ciudad BA Link
5. Python Data Analyst PowerBI Sales Dashboard Wallmart - Retail Link
6. Python Data Analyst Streamlit Dashboard Johnson & Johnson Link


How I Work

  • Discovery & Digitalization: Identifying needs, defining goals, and shaping the right digital strategy.

  • Data Product Development: Designing, building, and deploying reliable data products in the cloud.

  • Operations & Continuous Improvement: Ensuring scalability, stability, and continuous optimization.



What I Build

  • Cloud Architecture: End-to-end data pipelines, cloud integrations, and automated ecosystems (AWS, Snowflake).

  • Financial & Sales Reporting: Power BI dashboards and automated macro reports for each business area.

  • Accounting Applications: Tools and apps that support accounting processes and financial operations.

  • Automation & RPA: Reporting apps, distribution flows, and workflow automation that reduce manual effort.



Highlighted Projects

  • NLP for Communication Enhancement: Implemented ChatGPT models at Siemens to enhance interaction and communication within information systems.

  • Migration to Snowflake: Automated balance sheet consolidation and reporting in Big Data environments.

  • Regional KPI Development: Implemented finance reports for Siemens in Latin America, including sales and logistics analysis.

  • Data Science Teaching and Mentorship: Created curricula at ICARO and MIT for diploma programs in Machine Learning, Python, and time series analysis.

  • Automation with Python and Power BI: Implemented SAP robots and Power Automate workflows for account statements and automated email deliveries.



Technical Skills

  • Programming Languages: Python, SQL, DAX

  • BI and Data Warehousing Tools: Power BI, Snowflake, dbt, Mendix

  • Machine Learning: Predictive models, regression, classification, anomaly detection

  • NLP and Chatbot Development: ChatGPT models, Siemens-specific NLP solutions

  • Automation and Orchestration: Power Automate, IPy, GitLab

  • Documentation and Presentation: Financial reports, English presentations, process documentation in schematics.



Always looking for opportunities to innovate, enhance performance, and create value through data science.



📫 Contact

Feel free to contact me if you want to discuss exciting projects or collaborate on data initiatives!




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  1. Data_Siniestros_Viales Data_Siniestros_Viales Public

    Role: Data Analyst | App Siniestros Viales

    Jupyter Notebook 6 1

  2. MLOPS_API MLOPS_API Public

    STEAM PROYECT - Machine Learning Engineering for Production

    Jupyter Notebook 2

  3. Data-Synergy/EcoDriverNY Data-Synergy/EcoDriverNY Public

    Eco Driver NYC

    Jupyter Notebook 4 6

  4. Traffic_Sign_Classification Traffic_Sign_Classification Public

    Role: Machine Learning - Proyect : Traffic Sign Classification

    Jupyter Notebook

  5. Online_Retail Online_Retail Public

    Jupyter Notebook