Sebastian Chojnowski

Data Analyst at Infermedica
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Location
PL

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Experience

    • Poland
    • Hospitals and Health Care
    • 100 - 200 Employee
    • Data Analyst
      • Jan 2023 - Present

      - designing, building and maintaining data pipeline using Python and Big Query- analyzing data and using statistical techniques to provide insights and support decision-making, with experience in utilizing Looker Data Studio for data visualization- collaborating with cross-functional teams and stakeholders to identify business requirements and translate into technical solutions- leading workshops and train non-technical team members on data analysis and visualization best practices- implementing data storage solutions and reporting in GCP using technologies such as Terraform- continuously evaluating and improving data infrastructure to ensure data accuracy, security and accessibility

    • Junior Data Analyst
      • Dec 2021 - Dec 2022

      - various analysis of internal content required by both technical and non-technical recipients- creating dashboards with data visiualisations- development of internal tools for data extraction and manipulationAll done with usage of Python, SQL in Big Query and Google Cloud Platform services (Data Studio, Google Sheets, Google Docs).

    • Poland
    • Insurance
    • 100 - 200 Employee
    • Junior Specialist in Actuarial Department
      • Nov 2020 - Nov 2021

      - multiple processes automation using Python and SQL - setup, management and maintenance of processes related to Python and database tools in cooperation with IT Department - preparation of various reports, documentation and analysis with use of Python, Excel, SQL and databases with external sources of data - creation of Machine Learning model (including data cleaning, processing and analysis) of the likelihood of loss registration - multiple processes automation using Python and SQL - setup, management and maintenance of processes related to Python and database tools in cooperation with IT Department - preparation of various reports, documentation and analysis with use of Python, Excel, SQL and databases with external sources of data - creation of Machine Learning model (including data cleaning, processing and analysis) of the likelihood of loss registration

    • United States
    • Industrial Machinery Manufacturing
    • 700 & Above Employee
    • Internships in the Accounting Department
      • Jun 2018 - Sep 2018

      - preparation of payment reports - bank statements monitoring and processing - registration of invoices - preparation of payment reports - bank statements monitoring and processing - registration of invoices

Education

  • Politechnika Wrocławska
    Magister (Mgr), Matematyka stosowana
    2019 - 2020
  • Politechnika Wrocławska
    Inżynier (Inż.), Applied Mathematics
    2015 - 2019

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