Senior Data Engineer (Research) @ XTB

At least 4 years of experience as a Data Engineer or in a related software engineering role.

Proficiency in Python and the ability to write clean, testable production code.

Hands-on experience with Apache Spark.

Advanced SQL skills (query optimization on large datasets).

Strong understanding of data warehouse design principles and data modeling.

Practical knowledge of ETL/ELT processes.

Familiarity with data quality, monitoring, and pipeline reliability.

Experience working with relational datab…