I will do sql data analysis in bigquery and deliver clear insights

Sergei Tolstoi

Canada

I speak English, Russian

Data Analyst for SQL, Python, BigQuery and Dashboards

Hi, I'm Sergei, a data analyst with a degree in economics and years of experience running my own business, so I focus on what your numbers mean for decisions, not just charts. I hold Google Data Analy...
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About this Gig

Have data in spreadsheets, CSV exports, or a database but no clear answers? I'll load it into Google BigQuery, clean it, and use SQL to answer your business questions.


What you get:

  • Data cleaning: duplicates, missing values, inconsistent formats, outliers
  • SQL queries written for your questions (trends, segments, top products, customer behavior)
  • A short written summary with key findings and recommendations
  • Charts that make the results easy to share
  • The SQL code, documented, so you can rerun it

Example: in my Cyclistic bike-share project I merged 5 quarterly datasets, cleaned 4.2M trips down to 3.8M, and found how members and casual riders use the service differently, with 3 marketing recommendations.


Please message me before ordering with a short description of your data and your questions, and I'll confirm the right package.

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do sql data analysis in bigquery and deliver clear insights
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do sql data analysis in bigquery and deliver clear insights

Analysis type:

Quantitative Analysis

•

Descriptive Analysis

+1 more

Expertise:

Business Insights

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Trends

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Churn & Retention

+1 more

Technology:

Excel

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Google Sheets

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Jupyter Notebook

•

Looker Studio

Programming language:

Python

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SQL

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