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I will clean, analyze, and visualize your data in python
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...
About this Gig
Messy data slows every decision. I'll clean your dataset in Python and run an exploratory data analysis (EDA) so you understand what is really going on.
What you get:
- Data cleaning with pandas: duplicates, missing values, types, outliers
- Exploratory analysis: distributions, correlations, trends, segments
- Statistical tests where useful (chi-square, Mann-Whitney, t-test)
- Clear charts (matplotlib, seaborn)
- A Jupyter Notebook with commented code plus a short summary of findings
- Optional: a simple predictive model (classification or regression)
Example: in my Salifort Motors project I cleaned 15K HR records, tested hypotheses, and built a random forest model that predicts employee attrition (F1 0.94, AUC 0.97), with an executive summary for leadership.
Please message me before ordering so we can agree on scope.
FAQ
What will I receive?
A cleaned data file, a Jupyter Notebook (.ipynb), and an HTML or PDF copy you can open without Python.
Can you build a machine learning model?
Yes, in the Premium package: a classification or regression model with clear metrics and an explanation of what drives the predictions.
