Yulia Afletunova

Founder

Founded and leads a community for women in data with over 300 members.

Data Analyst (Data & Analytics Engineer)

Owned the ClickHouse warehouse and dbt project end-to-end, building over 90 dbt models and a testing suite. Built AWS-based ingestion infrastructure and reduced ClickHouse memory usage from 120GB to 2GB.

PythonSQLDBTAirflowClickhousePostgreSQLAWSDockerCircleCi

Data Analyst (Analyst-Developer)

Analyzed multivariate Big Data A/B tests on SERP, interpreting over 1000 metrics and delivering results via BI dashboards and reports. Calculated metric sensitivity from over 40 A/B tests using ML pipelines.

PythonYQLYTsaurusDataLensBusiness Intelligence

Full-Stack Data Analyst (Analytics Engineer)

3commas.io

Managed Airflow and Redshift ELT pipelines, ensuring data freshness and quality. Built data integrations with third-party APIs and set git-based development standards for a team of analysts.

SQLAWS RedShiftAirflowPythonDBT

Data Scientist

Built a data warehouse on PostgreSQL/dbt/Metabase, automating financial and product reporting. Owned subscription billing, retention, and churn as the core health metric, maintaining a 90% level over 3 years.

PythonJupyterPostgreSQLDBTMetabaseMixpanelData Visualization