Северин

Severyn Krok Profile
Data Analyst I am a Data Analyst with expertise in Python, data
analysis, and visualization using tools like Pandas,
Matplotlib, and NumPy. I have experience in web
scraping, database management (MS SQL Server,
OracleDB, PostgreSQL), and automating processes to
improve efficiency. Transitioning from a background in
mathematics, I bring strong analytical skills and a
commitment to continuous learning. At Idea Bank, I
analyzed credit portfolios, forecasted credit risk, and
developed automated reporting systems, driving
operational improvements and data-driven decision-
[open contact info](look above in the "contact info" section) making. I value efficiency, collaboration, and
[open contact info](look above in the "contact info" section) autonomy in my work.

Remote
Professional Experience
GitHub
LinkedIn Risk and Portfolio Data Analyst
Idea Bank
Telegram
2024 – present | Lviv, Ukraine
At Idea Bank, I analyzed and monitored the Bank’s
credit portfolio, ensuring compliance with regulatory
Skills standards and contributing to risk management
strategies.
English My duties included:
Upper-Intermediate Analyzing the Bank’s credit portfolio to assess
•

performance and identify trends.
Programming Languages Forecasting credit risk under stress-testing scenarios
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Python, SQL, C/C++ (basic) to support mitigation strategies.
Developing reports on credit risk and reserves for
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Database expected credit losses.
MS SQL Server, Oracle DB, PostgreSQL, Formulating reserves for credit losses on active
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SQLite operations in line with IFRS 9 standards.
Calculating credit risk levels according to NBU
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Analytics Technologies regulations.
Pandas, NumPy, Matplotlib, Power BI I also led initiatives to improve risk management
efficiency:
Python Frameworks
Django, DRF, FastAPI (basics) I led the development of an automated SQL Server
system, which replaced inefficient manual Excel
Web Scraping processes and reduced a two-week process to a few
BeautifulSoup4, Selenium, Scrapy hours.
I automated the preparation of a daily morning report
Concurrency using Python, Pandas, and SQL, which saved
Multiprocessing, Multithreading, significant time and improved accuracy.
Asyncio
These achievements demonstrate my ability to
combine analytical skills with technical expertise to
Front-end
enhance operational efficiency and support the Bank’s
HTML, CSS, Bootstrap, JavaScript (basics)
risk management goals.
DevOps Data Analyst
Docker, Render.com, AWS (basic), Training projects
2023 – 2024
Tools
Git, GitHub, Debugger, Pytest, Trello Job Market Technology Analytics on dou.ua
 This project allows you to analyze the job market on
Education
dou.ua for Python developers by technologies,
companies, and cities.
Physics & Mathematics
Lviv Physics & Mathematics Lyceum Features:
2015 – 2018 | Lviv, Ukraine View statistics on technology demand in job
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vacancies.
Obtain information about companies with open job
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Courses positions.
Discover the most popular places and cities for work.
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Software Engineering
Technologies:
STEP academy
Scrapy for job vacancy scraping
2015 – 2019 | Lviv, Ukraine
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Selenium for interacting with dynamic content
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Mastered HTML, CSS, and JavaScript Jupyter Notebook for data analysis and visualization
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during the course. Pandas for data processing and analysis
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Applied acquired skills in the Matplotlib for creating graphs
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development of websites and web
applications. Full-Time Mathematics Tutor
Gained a comprehensive understanding Self-employed
of the capabilities of these technologies. 2021 – 2023
Explored practical aspects of Comprehensive analysis of the material
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programming languages, including C++ Teaching through examples to demonstrate that
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and C#. mathematics is not as difficult as portrayed
Developed proficiency in creating Preparation for standardized tests, quizzes, and
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complex commercial applications. exams
Utilized programming skills across
various platforms.
Incorporated databases, system
functionalities, and networking
capabilities into application
development.

CS50
Harvard University
2016 | Remote
Fundamentals of programming (C, C++)