Rafał Chojnowski

Postgraduate Student at Politechnika Warszawska
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Warsaw, Mazowieckie, Poland, PL

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Experience

    • Poland
    • Higher Education
    • 1 - 100 Employee
    • Postgraduate Student
      • Oct 2022 - Present

      Big Data postgraduate studies, (designing, using big data, using Microsoft Visio, SQL) Big Data postgraduate studies, (designing, using big data, using Microsoft Visio, SQL)

    • Business Consulting and Services
    • 700 & Above Employee
    • Data Analyst
      • May 2022 - Aug 2022

      - transferring datasets between databases processing, - analyzing and verifying data; - preparing Prophet runs; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Excel (complex formulas) - transferring datasets between databases processing, - analyzing and verifying data; - preparing Prophet runs; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Excel (complex formulas)

    • United States
    • Information Services
    • 700 & Above Employee
    • Data Research Analyst
      • Feb 2021 - Apr 2022

      - Market analysis - Volume forecasts preparations - Analyzing trends on the market - Market research - Market analysis - Volume forecasts preparations - Analyzing trends on the market - Market research

    • Poland
    • Insurance
    • 700 & Above Employee
    • Actuary
      • Jul 2019 - Feb 2020

      - collecting, processing, analyzing and verifying data; - model points creation; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Prophet, Excel - collecting, processing, analyzing and verifying data; - model points creation; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Prophet, Excel

    • Insurance
    • 1 - 100 Employee
    • Actuary
      • Dec 2018 - Jun 2019

      - collecting, processing, analyzing and verifying data; - model points creation; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Prophet, Excel - collecting, processing, analyzing and verifying data; - model points creation; - preparing monthly and quarterly reports using SQL; - preparation of projections based on Prophet and internal data; - usage of SQL (finding data necessary for the specific task), Prophet, Excel

    • Belgium
    • Business Consulting and Services
    • 1 - 100 Employee
    • Data Analyst
      • May 2018 - Dec 2018
    • Canada
    • Non-profit Organizations
    • 700 & Above Employee
    • Volunteer Staff
      • Feb 2018 - Sep 2018
    • Poland
    • Retail
    • 100 - 200 Employee
    • Barista
      • Feb 2017 - Mar 2018

Education

  • SGH Warsaw School of Economics
    Licencjat (Lic.), Quantitive Methods in Economics and Information Systems
    2016 - 2019

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