Jakub Sieczczyński is a software developer based in Gdańsk, Poland, with four years of professional experience building robust front-end applications and test automation pipelines. He has contributed to notable open-source tooling like TrueFiEng/useDApp, improving a next.js example app with new pages, UI components, Playwright tests, refactoring, and CI integrations to raise test coverage and reliability. His commercial experience spans roles at TrustToken, VISIONA, and currently Jit Team, where he focuses on shipping maintainable, testable web features. Jakub combines practical front-end craftsmanship with a strong emphasis on automated quality assurance, making him effective at turning prototypes into production-ready interfaces. He holds both bachelor’s and master’s studies in computer science from Uniwersytet Gdański and Uniwersytet WSB Merito Gdańsk, respectively, and brings a collaborative, improvement-driven approach to teams. Notably, he blends hands-on UI work with backend-aware testing practices—an asset for teams aiming to scale front-end reliability.
4 years of coding experience
2 years of employment as a software developer
Licencjat (Lic.), Computer Science, Licencjat (Lic.), Computer Science at Uniwersytet Gdański
Magister (Mgr), Computer Science, Magister (Mgr), Computer Science at Uniwersytet WSB Merito Gdańsk
Framework for rapid Dapp development. Simple. Robust. Extendable. Testable
Role in this project:
Front-end Developer & Test Automation Engineer
Contributions:18 reviews, 79 commits, 69 PRs in 4 months
Contributions summary:Jakub primarily focused on enhancing the next.js example application within the usedapp framework. Their contributions involved adding new pages, implementing various UI components, and writing Playwright tests to ensure the application's functionality. They also addressed code refactoring, improving the application's structure, and integrating CI tests for comprehensive quality assurance. The user's work significantly improved the example app's test coverage and overall robustness.
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Jakub Sieczczyński - Software Developer at Jit Team