Jakub Sobolewski
Staff Engineer at Appsilon
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolJakub Sobolewski is a Staff Engineer based in Warsaw with eight years of experience helping R teams ship reliable applications faster by making testing practical and repeatable. At Appsilon he focuses on ensuring technical quality across teams, blending hands-on engineering with mentorship and process improvements. Trained as an engineer in physics at Politechnika Warszawska, he brings a methodical, measurement-oriented approach to software quality. He excels at translating testing best practices into developer-friendly workflows that reduce friction and speed delivery. Colleagues value his ability to balance pragmatic tooling choices with long-term maintainability.
8 years of coding experience
Warsaw University of Technology
Github Skills (47)
r-package10
r10
shiny10
htmlwidgets10
fomantic-ui10
shiny-apps10
fluent-interface10
translation9
rstudio9
internationalization9
semantic9
semantic-ui9
react9
cran9
behavior-driven-development9
Programming languages (7)
Github contributions (5)
jakubsob/cucumber
Feb 2024 - Apr 2025
Behavior-Driven Development and Specifications Testing for R
Contributions:8 releases, 1 review, 12 PRs in 1 year 1 month
acceptance-testingbehavior-driven-developmentcucumberrspecification
jakubsob/r6methods
Feb 2021 - Jan 2022
Add Methods to R6 Class Definition
Contributions:16 commits, 2 PRs, 16 pushes in 10 months
arraysstandard-librarytraitsdefinitionextension-methods
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