Senior Data Engineer (Kraków)
Job Title:
Senior Data Engineer
Who we are:
Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.
About the Product:
Our client is a major online gaming operator building a next-generation transactional Player Account Management platform from scratch (greenfield). Operating in a highly regulated, high-volume environment with millions of concurrent users, the platform processes real-time financial transactions requiring sub-second performance, strict data integrity, and ultra-high availability during extreme traffic spikes.
You will own the multi-layer lakehouse architecture, CDC streaming pipelines, and data storage design, directly shaping the scalability, reliability, and governance of the core data platform.
Key Responsibilities:
- Design and maintain a multi-layer lakehouse using Iceberg or Delta Lake, including schema evolution and query performance optimization.
- Build real-time CDC ingestion pipelines with Kafka and Debezium, handling late or duplicate events.
- Ensure data freshness, quality, and automated reconciliation with source transactional systems.
- Implement data governance practices, including metadata, lineage, PII protection, and audit trails.
- Develop production data pipelines using Python, Airflow, or Dagster.
Key Requirements:
- 5+ years of data engineering experience with large-scale data systems, data lakes, or lakehouse environments.
- Production experience with AWS S3 and analytics platforms such as Snowflake, Databricks, or BigQuery.
- Hands-on experience with open table formats like Iceberg, Delta, or Hudi.
- Experience building CDC and streaming data pipelines using Kafka or Debezium.
- Strong SQL, Python, and data modeling skills for relational and transactional data.
- Background in financial, transactional, or audit-heavy domains is a plus.
What We Offer:
- 20 paid vacation days plus official national holidays.
- Full legal and accounting support.
- Fully remote work model within Poland with a powerful workstation provided or co-working space support.