Maciej Pastyszak

Poland

@mac_pas

Senior Data Analyst

Badges

Python
Sql

Certifications

Work Experience

  • Senior Data Analyst

    HSBC•  November 2022 - Present

    Analyzing large amounts of information to find patterns and solutions. Data mining or extracting usable data from valuable data sources. Carrying out preprocessing of structured and unstructured data. Developing prediction systems and machine learning algorithms. Collaborating with Business and IT teams.

  • Senior Data Analyst

    Uber•  July 2021 - October 2022

    Collecting and interpreting data to help take actionable steps to improve performance and fraud KPIs. Creating, maintaining, and updating dashboards. Maintaining and updating data-related part of processes. Providing analytical support in risk-related processes.

  • Senior Risk Investigator

    Uber•  September 2020 - July 2021

    Becoming POC for risk for the EMEA region. Taking an active part in creating new regional risk processes. Analyzing new incoming fraud behaviors and solving them by recognizing the root cause and taking the right actions. Monitoring KPI's and additional risk-related factors. Writing SQL queries on a daily basis to collect data required to perform the investigation.

  • Risk Investigator

    Uber•  May 2019 - August 2020

    Analyzing new incoming fraud behaviors and solving them by recognizing the root cause and taking the right actions. Writing SQL queries on a daily basis to collect data required to perform the investigation. Monitoring KPI's and additional risk-related factors.

Education

  • Technical University of Warsaw

    Data Science, Post Graduate•  November 2021 - July 2022

    Alghoritms, tools and applications for Big Data problems.

  • Technical University of Cracow

    Transportation, ME•  September 2018 - June 2019

    Specialization: logistic and forwarding

  • Technical University of Cracow

    Transportation, BE•  September 2014 - March 2018

    Specialization: logistic and forwarding

Skills

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