Senior Data Platform Engineer (Lakehouse & Streaming) | Kraków, Poland

Senior Data Platform Engineer | Lakehouse & Streaming Data

We’re looking for an experienced Data Platform Engineer to build and own the data lakehouse for a large-scale gaming and financial platform serving 12M+ active users.

You’ll manage millions of daily transactions, including bets, wallet movements, and live odds, ensuring data is accurate, secure, and available for analytics, finance, and regulatory reporting.

This is a hands-on role with ownership of data architecture, ingestion, performance, and governance.

What You’ll Do

• Design and manage the data lakehouse using S3, Snowflake, or Databricks.
• Build and maintain data pipelines using Kafka, Debezium, and CDC.
• Implement Bronze, Silver, and Gold data layers using Iceberg or Delta.
• Optimize data storage, query performance, and cloud costs.
• Ensure data accuracy through monitoring, reconciliation, and drift detection.
• Manage data retention, security, access controls, and GDPR compliance.
• Monitor pipeline health and resolve data quality issues.

What We’re Looking For

• Strong experience designing and operating cloud data lakehouses.
• Hands-on knowledge of Iceberg, Delta Lake, or Hudi.
• Production experience with Snowflake, Databricks, or BigQuery.
• Experience with Kafka, CDC, and streaming data pipelines.
• Strong SQL and data modeling skills.
• Experience optimizing large-scale data processing (TB+).
• Understanding of data quality, reconciliation, and governance.
• Experience with AWS S3 or Google Cloud Storage.
• Working knowledge of Python and Airflow or Dagster.

Nice to Have

• Experience with financial transactions, wallets, ledgers, or gaming platforms.
• Knowledge of Trino, Athena, and advanced query optimization.

Interested in owning a mission-critical data platform at scale? We’d love to hear from you.

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