Роман

ROMAN KOLEHOV
Data Analyst CONTACT

Over 10 years of experience in finance and business with a strong focus on [відкрити контакти](див. вище в блоці «контактна інформація»)
reporting, data analysis, and performance monitoring. Transitioning into data [відкрити контакти](див. вище в блоці «контактна інформація»)
analytics with practical skills in SQL, Python, Excel, and Tableau. Looking to Rivne, Ukraine
apply analytical mindset and technical skills in a Junior Data Analyst role. Linkedin
@rkolehov

WORK EXPERIENCE TECHNICAL SKILLS

DART Company • Rivne, Ukraine § Data Analysis: SQL
2016 - present (Intermediate), Python
Sales and Product Development Manager • Full-time (Pandas, NumPy,
Matplotlib)
Built and expanded a client network, assisting in selecting products tailored to § Visualization: Tableau,
specific customer segments. Successfully attracted a key client from Canada, resulting Excel (Advanced)
in the manufacture and delivery of over 3,000 products within six months. Led the § Databases: BigQuery,
end-to-end design of several new products that became bestsellers. Monitored PostgreSQL
product quality and ensured on-time delivery. Conducted inventory analysis and § Statistical Analysis: A/B
forecasted future production volumes to optimize supply chain efficiency. Testing, Cohort Analysis,
Forecasting
PJSC Delta Bank • Kyiv, Ukraine § Business Intelligence: KPI
Development, Dashboard
2014 – 2015
Creation
Deputy Branch Manager • Full-time

Conducted daily analysis of key financial metrics of the bank branch using Excel LANGUAGES
(pivot tables, formulas), enabling early identification of performance deviations and
potential risks. Generated clear, data-driven reports for senior management, § Ukrainian (native)
supporting decision-making processes. Monitored the execution of financial plans, § English (intermediate)
tracked performance against targets, and contributed to monthly forecasts.
Demonstrated strong analytical thinking, attention to detail, and the ability to work
efficiently with large volumes of structured financial data under tight deadlines. CERTIFICATION
PJSC Delta Bank • Kyiv, Ukraine Excel and Tableau for data
2013 – 2014 analysis
Chief Economist of the Bank Branch • Full-time 06/2025
DataCamp
Verified the accuracy of banking transactions to ensure full compliance with
regulatory standards. Performed financial analysis of client data to assess SQL and Python for data
creditworthiness and supported data-driven loan approval decisions. Prepared analysis
structured conclusions based on quantitative and qualitative indicators. Consulted 04/2025
corporate and retail clients on financial products, demonstrating the ability to explain DataCamp
complex data clearly and build trust-based relationships. Participated in negotiations
with key clients, applying analytical insights to support personalized financial Data analysis and statistical
solutions. output in R
02/2025
Prometheus
EDUCATION
Python: Data Structures
The National University of Water and Environmental Engineering • Rivne, 12/2024
Ukraine Prometheus
2024 – present
Master's degree in Finance, banking, insurance and stock market Fundamental of Python
Programing
European University • Rivne, Ukraine 07/2024
2006 - 2009 Campster
Bachelor's degree in Banking and Financial Support Services
PROJECTS
Coffee Sales Analysis (Python, Jupyter Notebook)

Analyzed one year of coffee vending machine data to identify seasonal trends and
peak sales hours. Generated insights that supported inventory optimization
strategies.

Github repositories