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roman_skrepel

Roman Skrepel

@roman_skrepel

Data Analyst: SQL, BigQuery, Power BI, Python

Ukraine
English, Ukrainian, Russian
About me
I'm a data analyst with 5+ years of hands-on experience turning messy data into clear, decision-ready answers. I work daily with SQL and Google BigQuery, Power BI/DAX, and Python, and I've built everything from complex analytical queries and cohort/retention reports to automated dashboards and data scrapers. My background is in a high-volume, metrics-heavy industry, so I'm comfortable with large datasets, tricky joins, window functions, and performance optimization. I care about accuracy, clean logic, and delivering results you can actually act on.... Read more

Skills

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roman_skrepel
Roman Skrepel
Offline • 
Average response time: 1 hour

See my services

SQL & NoSQL Queries
I will write and optimize sql and bigquery queries for your reports
From$15 / projectMore details
Data Dashboards
I will build interactive power bi dashboards and reports
From$15 / projectMore details

Portfolio

Work experience

iGaming_Business

Data Analyst

iGaming Business • Full-time

Mar 2019 - Present • 7 yrs 6 mos

Building analytical reports and dashboards on large-scale datasets: SQL/BigQuery queries, Power BI/DAX reporting, Python automation and data scraping. Focus on retention, cohort and behavioral metrics.