Do you have experience using ETL tools in your projects?

Yes, in Python projects I have used ETL tools for extracting, transforming, and loading data. For example, using libraries like Pandas and SQLAlchemy, simple ETL processes can be implemented: extracting data from a database, transforming it (cleaning, aggregating), and loading it into another system.

Example of a simple ETL in Python:

import pandas as pd
from sqlalchemy import create_engine

# Extract data from CSV
data = pd.read_csv('source.csv')

# Transform: filter and add a column
filtered = data[data['age'] > 18]
filtered['is_adult'] = True

# Load into database
engine = create_engine('sqlite:///target.db')
filtered.to_sql('users', engine, if_exists='replace', index=False)

I am also familiar with tools like Apache Airflow for organizing complex ETL processes with scheduling and monitoring.