Łukasz Siwiński is a Senior Software Engineer with 12 years of experience combining Java development, DevOps practices, and team leadership across banking and consulting environments. He has progressed from hands-on Java roles to senior architecture and team lead positions at Netcompany and now delivers investment banking solutions through LanceSoft. Comfortable bridging code and operations, he focuses on reliable, production-ready systems and mentoring engineering teams. An active contributor to open-source localization, he added Polish language support to the well-known Sonic Pi live-coding music app, improving accessibility for Polish users. Based in Warsaw, he pairs practical engineering depth with a knack for making complex UIs and internationalized systems work smoothly.
12 years of coding experience
18 years of employment as a software developer
Bachelor of Engineering (B.E.), Informatyka, Bachelor of Engineering (B.E.), Informatyka at Wyższa Szkoła Menedżerska w Warszawie
Contributions:193 commits, 30 PRs, 120 comments in 7 years 6 months
Contributions summary:Łukasz primarily focused on translating the Sonic Pi GUI into Polish. Their work involved adding Polish language support, including initializing the GUI for Polish, translating strings within the GUI, and addressing layout issues related to the translated text. The contributions significantly improved the accessibility of the Sonic Pi application for Polish-speaking users, enhancing the user experience by providing translated interface elements.
Contributions:146 commits, 24 pushes, 2 branches in 3 years 3 months
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Łukasz Siwiński - Senior Software Engineer at LanceSoft, Inc.