Tomasz Kozielski

Full-stack Developer at Leon Software
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Contact Information
us****@****om
(386) 825-5501
Location
Warsaw, Mazowieckie, Poland, PL
Languages
  • angielski Professional working proficiency
  • niemiecki Professional working proficiency

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Credentials

  • Excel VBA advanced course
    HintMine
    Sep, 2014
    - Sep, 2024
  • English For International Communication
    TOEIC® Program
    May, 2014
    - Sep, 2024
  • Professional Accountant
    Ministry of Finance of Poland
    Oct, 2013
    - Sep, 2024

Experience

  • Leon Software
    • Poland
    • Airlines and Aviation
    • 1 - 100 Employee
    • Full-stack Developer
      • Nov 2020 - Present

      Developing and maintaining in-house Aircraft Management Application - ReactJS + strongly typed frontend languages - PHP, Doctrine, GraphQL, Docker - PHPUnit - unit tests for new features and API Developing and maintaining in-house Aircraft Management Application - ReactJS + strongly typed frontend languages - PHP, Doctrine, GraphQL, Docker - PHPUnit - unit tests for new features and API

  • Finalyse
    • Business Consulting and Services
    • 1 - 100 Employee
    • IT consultant
      • Jan 2020 - Oct 2020

      • Creation and automatization the processes in finance department of bank, preparing specification, documentation and workflows • Automatization of finance processes using Google products (Google Cloud Platform, Google BigQuery, AppScript) • Creation and automatization the processes in finance department of bank, preparing specification, documentation and workflows • Automatization of finance processes using Google products (Google Cloud Platform, Google BigQuery, AppScript)

  • mKsięgowa / FrontAccounting
    • Full-stack Developer, Self-employed
      • Oct 2010 - Dec 2019

      • 2019 - Creation and Implementation of the fast and reliable client-side framework for dynamic data lists and data entry based on JSON model and data transfer. Technology used in this project – ReactJS, PHP, MySQL • 2012-2018– ERP software development with over 500 tickets closed with PHP, MySQL, GIT, JavaScript, Linux • Business Owner & ERP Developer with over 4000+ accounts and long-term business relations • 2019 - Creation and Implementation of the fast and reliable client-side framework for dynamic data lists and data entry based on JSON model and data transfer. Technology used in this project – ReactJS, PHP, MySQL • 2012-2018– ERP software development with over 500 tickets closed with PHP, MySQL, GIT, JavaScript, Linux • Business Owner & ERP Developer with over 4000+ accounts and long-term business relations

  • Accor
    • France
    • Hospitality
    • 700 & Above Employee
    • IT Business Analyst
      • Jan 2019 - Jun 2019

      • Financial project management – My role: Analysis and coordination of software development for tax regulation changes • Developing minor tools (VBA, PowerShell, Excel) for better financial operation control. • Financial project management – My role: Analysis and coordination of software development for tax regulation changes • Developing minor tools (VBA, PowerShell, Excel) for better financial operation control.

  • ManpowerGroup Poland
    • Poland
    • Human Resources Services
    • 1 - 100 Employee
    • Financial Analyst
      • Jan 2014 - Jul 2015

      • Reporting processes automatization with VBA and Excel • Assistance in business offers and bids, new project P&L evaluation • Reporting processes automatization with VBA and Excel • Assistance in business offers and bids, new project P&L evaluation

Education

  • SGH Warsaw School of Economics
    Master degree - stationary, Finance and Accountancy
    2010 - 2013
  • SGH Warsaw School of Economics
    Bachelor degree - stationary, Specialization: Management
    2007 - 2010

Community

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