Przemysław Denkiewicz is a Senior Software Engineer based in Warsaw with five years focused on big data, analytics and open-source contributions. He has driven integrations and backend work for Trino and Iceberg at Starburst and now builds cloud-native data tooling at LocalStack, blending database engineering with Python ecosystem integrations. His open-source work on Trino and the trino-python-client improved SQL Server compatibility, SQLAlchemy support and authentication handling—contributions that materially smooth interoperability between analytics stacks. Early experience across ETL, data warehouse design, AWS data lakes and BI tools gives him a pragmatic, end-to-end view of data platforms beyond just engine internals. He combines systems-level rigor from an engineering background with hands-on connector and client libraries work, making him effective at bridging platform and developer needs.
5 years of coding experience
8 years of employment as a software developer
Master of Engineering - MEng, Electrical and Electronics Engineering, Master of Engineering - MEng, Electrical and Electronics Engineering at Warsaw University of Technology
Master of Engineering - MEng, Industrial Engineering, Master of Engineering - MEng, Industrial Engineering at Universidad Politécnica de Cartagena
Contributions:208 reviews, 13 commits, 19 PRs in 11 months
Contributions summary:Przemysław primarily contributed to enhancing the Trino Python client, focusing on database interaction and SQLAlchemy integration. Their work included fixing transaction handling in auto-commit mode, enabling certificate authentication, and adding the ability to pass attributes in connection strings, source property support, and supporting TIME(p) and TIMESTAMP(p) to SQLAlchemy. Furthermore, they addressed a compatibility issue with SQLAlchemy v1.4.42 and enabled mypy checks for the auth.py file.
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Role in this project:
Back-end Developer & Database Engineer
Contributions:14 reviews, 6 PRs, 26 comments in 3 years 5 months
Contributions summary:Przemysław contributed to the Trino SQL query engine by implementing and refining SQL Server type mapping tests. Their work included adding tests for basic types, real numbers, double-precision numbers, and decimal types. Furthermore, the user refactored and renamed existing type mapping tests, and added support for dates before 1583 in the SQL Server connector. These changes improved the compatibility and accuracy of the Trino engine when interacting with SQL Server databases.
prestodbdbmsindexingjdbcbigdata
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Przemysław Denkiewicz - Senior Software Engineer at LocalStack