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Andrey Zaytsev

@andreyzaytsev1

Lead Data Engineer at Novacard, running a 3 TB credit-data warehouse and rebuilding a 162M-row CDC pipeline for faster incremental processing.

Thailand

Message

At Novacard, I own a 3 TB consumer-credit warehouse and about 50 automated ETL/ELT pipelines serving risk, CRM, finance, and marketing. I rebuilt a full recompute over 162M CDC rows as an incremental design, targeting runs of 10–30 minutes instead of 90–120 minutes.

At Luchi (formerly BestDoctor), I designed an S3 lakehouse with Trino, Apache Iceberg, and dbt for regulated medical and insurance data. I built the governed dbt layer and led the migration from Airflow to Dagster, with key reports running 40%+ faster.

At Reckitt, I rebuilt a regional data platform on PostgreSQL, Airflow, and S3 after Azure exited the market, reducing infrastructure cost by 70% without business interruption. Earlier, at Epson Europe B.V., I automated reporting and ETL, cutting manual data handling by 90%.

Experience

Work history, roles, and key accomplishments

Current

Lead Data Engineer

Current

Novacard

Jan 2026 - Present (8 months)

Own the data platform for a consumer-credit business end to end, including a 3 TB warehouse and ~50 automated ETL/ELT pipelines in Python on Airflow. Rebuilt a 90–120 minute full recompute into an incremental design with versioned snapshots and reconciliation, achieving a 10–30 minute target.

Python Airflow ETL ELT Data Quality PySpark GitLab CI CD AWS Data Warehouse Change Data Capture Reconciliations Monitoring Alerting Appsflyer GA4

Senior Data Engineer

Luchi

May 2023 - Jan 2026 (2 years 8 months)

Designed a lakehouse on S3 with Trino, Apache Iceberg and dbt, providing self-serve access to regulated medical and insurance data. Built the dbt layer end to end and led the orchestration migration from Airflow to Dagster.

DBT Trino Apache Iceberg S3 Airflow Dagster Greenplum Data Observability Data Quality SCD2 Data Lineage

Senior Data Engineer

Reckitt

Jul 2019 - May 2023 (3 years 10 months)

Automated external data acquisition, retiring a ~£60K/year vendor subscription, and rebuilt the regional platform after Azure exited the market with zero business interruption and 70% lower infrastructure cost. Built automated data-quality and regression testing, reducing analytical errors by 90%.

Azure Databricks Delta Lake PostgreSQL Airflow S3 Docker Data Quality Regression Testing ETL Power BI

BI & Analytics Lead

Epson Europe B.V.

Jun 2009 - Jul 2019 (10 years 1 month)

Automated manual reporting and ETL, cutting manual data handling by 90%. Led warehouse migrations and built the analytics platform behind regional planning, with ML tender classification cutting operating costs by 10% annually.

ETL Data Warehouse Analytics Machine Learning Report Automation

Education

Degrees, certifications, and relevant coursework

Yandex Practicum

Python Developer, Python Development

2020 - 2023

Completed certifications in Data Engineering, Python Development, and Data Science from Yandex Practicum between 2020 and 2023.

Yandex Practicum

Data Engineer, Data Engineering

2020 - 2023

Completed certifications in Data Engineering, Python Development, and Data Science from Yandex Practicum between 2020 and 2023.

Yandex Practicum

Data Science Specialist, Data Science

2020 - 2023

Completed certifications in Data Engineering, Python Development, and Data Science from Yandex Practicum between 2020 and 2023.

Moscow Institute of Electronics and Mathematics (now HSE MIEM)

Specialist Degree (equivalent to MSc), Computer Engineering

2003 - 2008

Specialist Degree (5-year program, equivalent to MSc) in Computer Engineering from Moscow Institute of Electronics and Mathematics (now HSE MIEM), completed in 2008.