Mariusz Jakubowski
Lead Architect & Senior Consultant at Kancelaria Sejmu (Chancellery of the Sejm)
Warsaw Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolMariusz Jakubowski is a seasoned technical leader and architect with nearly two decades of experience modernising government and enterprise systems, currently serving as Lead Architect & Senior Consultant at the Chancellery of the Sejm in Warsaw. He specialises in transforming legacy platforms into distributed, AI- and event-driven architectures, having delivered high-availability solutions such as an AI transcription system, a secure remote voting platform for 460 MPs, and public legislative APIs. Equally at home in hands-on development and strategy, he established GitLab CI/CD pipelines, led cross-disciplinary teams, and negotiated integrations with national e-government services like mObywatel and ePUAP. His open-source contributions include UX and stability improvements to the cross-platform muCommander file manager, reflecting attention to performance and user experience. Trained as an M.Sc. in Software Engineering, he combines rigorous engineering with practical governance know-how to turn complex legislative and compliance requirements into production-grade, auditable systems.
18 years of coding experience
17 years of employment as a software developer
M. Sc. Software Engineering, M. Sc. Software Engineering at Poznan University of Technology
Github Skills (9)
javas10
file-management10
object-oriented-programming10
front-end-development10
java10
multithreading9
user-interface8
interface-design8
ui-design8
Programming languages (3)
Github contributions (5)
mucommander/mucommander
May 2008 - May 2010
A lightweight, cross-platform file manager with a dual-pane interface
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:71 commits in 2 years
Contributions summary:Mariusz contributed to the file manager's codebase by addressing bugs and implementing new features. They fixed a refresh issue related to a tree view, added a hashCode method to the AbstractFile and ProxyFile classes for better object comparison, and implemented synchronization for the directory cache to improve performance. Moreover, the user added the multi-rename feature and fixed focus navigation, demonstrating a focus on enhancing the user experience and file management functionalities.
file-manager
mariusj/GiftRecipientLottery
Sep 2017 - Nov 2022
Contributions:6 pushes, 1 branch in 5 years 2 months
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