Микола

Mykola Petrenko Employment
Intern Product Analyst Jul 2026 - Sep 2026
Quarks Tech, Kiev
Extracted and consolidated data from multiple sources using complex,
optimized Vertica SQL queries, successfully contributing a pull request to the
corporate data warehouse.
Developed 40+ interactive Tableau dashboards and reports, including cohort
matrices, automated metric monitoring, and advanced corporate A/B test
analytics using TabPy (Python).
Evaluated product experiments and registration funnels (accounting for
network effects), proposing and validating 10 data-driven product
Personal details improvement ideas.
Built 3 comprehensive forecasting models for finance and marketing,
Mykola Petrenko including P&L projections and marketing efficiency calculations.
Investigated payment funnels, transaction approval rates, chargebacks, and
[open contact info](look above in the "contact info" section) anti-fraud verification systems to uncover root causes and optimize risk
metrics.
[open contact info](look above in the "contact info" section) Key Skills: Vertica SQL, Tableau, TabPy, Python, Excel, GitHub, A/B Testing,
Financial Modeling, Payment & Product Analytics.
Kiev

May 23, 2003 Risk Analyst Intern (University Internship) Apr 2026 - May 2026
Dragomanov Ukrainian State University, Department of Mathematics, Kiev
github.com/NikolayPetrenko03 Project: Time Series Smoothing Using Transcendental Curves
Analyzed 4 years of daily NBU exchange rate data (7,300+ records) for key
[open contact info](look above in the "contact info" section)
currency pairs (USD/UAH, KRW/UAH, JPY/UAH, PLN/UAH, INR/UAH) to
petrenko-5a1043264
identify long-term macroeconomic trends.
Developed and compared three nonlinear trend models (exponential,
logistic, and Gompertz curves) to capture specific currency dynamics.
Evaluated model accuracy across different currency pairs using statistical
metrics (F-test, SSR/SSE ratios) to determine the optimal mathematical fit.
I am a highly motivated Master’s
Delivered structured Excel reports with data visualizations, highlighting the
graduate in Financial
logistic model as the most accurate for data-driven decision-making.
Mathematics, actively building a
Key Skills: Financial data analysis, time series forecasting, nonlinear modeling,
career at the intersection of data
statistical validation, Excel (formulas, charts, tables), trend analysis, data
analytics and finance. I am
reporting.
passionate about applying
Details at github: https://github.com/NikolayPetrenko03/University_project
mathematical statistics, SQL,
Python, and Tableau to analyze
complex processes, evaluate Courses
business risks, and drive data-
informed decisions. Having
Analytics in Product IT Mar 2026 - Jun 2026
recently completed a practical
Quarks Tech, Kiev
internship in analytics, I am eager
to translate my strong
quantitative background and Education
hands-on experience into
actionable insights. My goal is to
Master's degree, Mathematics Sep 2024 - Jun 2026
become a valuable team member
Dragomanov Ukrainian State University, Kiev
in a dynamic tech or financial
Financial and actuarial mathematics
environment, continuously
develop my skills, and contribute
to building effective, data-driven Bachelor's degree, Mathematics Sep 2020 - Sep 2024
solutions. Dragomanov Ukrainian State University, Kiev
Mathematics and statistics

Skills Certificates (details at linkedln: https://www.
SQL
[open contact info](look above in the "contact info" section)
Data Visualisation (Tableau) Analytics in Product IT Jul 2026

Microsoft Excel
Analytics Intensive Dec 2025
Python

Statistical analysis and modeling Author, 2nd International Scientific and May 2025
Practical Conference "Socio-Economic
Actuarial calculation Situation in Wartime"

Econometrics
Data Analysis Using SQL Mar 2025
Financial markets & macroeconomic
logic
Foundations: Data, Data Everywhere Mar 2025
Risk-management

Economics fundamentals Python for Data Science, AI & Development Feb 2025

Github
Data Science Methodology Jan 2025

Personal qualities Data Science Tools Jan 2025

Responsible / Fast learner /
What is Data Science? Dec 2024
Attention to Detail / Team player /
Self-organized / Critical Thinking /
Problem Solving / Effective
Communication

Languages
English, B1

Ukrainian, C2