Tomasz Dąbrowski
Senior Technical Manager at HCLTech
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolTomasz Dąbrowski is a Senior Technical Manager based in Warsaw with 16+ years of hands-on experience leading BI/DW teams and delivering complex banking and enterprise integrations. He combines deep technical expertise in ETL, Oracle Data Guard, Avaloq platform deployment and automation with proven leadership of multicultural teams across the Philippines, India and China. Tomasz has progressed from database and systems administration to architecting and managing mission-critical application landscapes, often solving low-level stability and portability issues. An active contributor to open source, he has improved the mruby runtime with fixes for UTF-8 packing, NaN boxing and cross-architecture compilation issues—an uncommon detail for a BI specialist that highlights his systems-level curiosity. Practical, detail-oriented and comfortable operating between technical trenches and strategic delivery, he thrives on making complex platforms reliable and maintainable.
16 years of coding experience
5 years of employment as a software developer
Master of Science - MS, Master of Science - MS at Szkoła Główna Gospodarstwa Wiejskiego w Warszawie
Github Skills (10)
text-manipulation10
c1710
strings10
c1110
mruby10
utf10
ruby9
compiler-design8
data-structure7
data-structures7
Programming languages (8)
Github contributions (5)
mruby/mruby
Jul 2016 - Nov 2017
Lightweight Ruby
Role in this project:
Back-end Developer
Back-end DeveloperContributions:103 commits, 39 PRs, 55 comments in 1 year 4 months
Contributions summary:Tomasz contributed to the mruby project by adding support for UTF-8 character packing and unpacking within the `pack.c` file. They corrected argument specifications for several methods in the `src/string.c`, `src/class.c`, and `mrbgems/mruby-struct/src/struct.c` files. The user also fixed NaN boxing issues, architecture detection, and various compiler warnings and errors related to data type conversions, enhancing the stability and correctness of the mruby runtime environment.
ruby
dabroz/gitcharts
Jan 2010 - Oct 2010
Contributions:13 commits in 9 months
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