Jarek Krzemieński
Full Stack Developer at WebzzMaster
Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolJarek Krzemieński is a versatile Full Stack Developer with over a decade of hands-on experience building and managing web, desktop, and mobile systems while leading engineering teams and budgets. He currently drives full-stack work at SWARCO, blending TypeScript/Angular front-ends with event-driven .NET Core back-ends, event sourcing and containerized deployments on Kubernetes. His background ranges from founding his own development firm to senior PHP roles and a CIO post where architectural changes improved scalability and call reliability for a real-time platform. Jarek contributes to well-known projects like the Wikia codebase, touching both front- and back-end concerns and practical refactors such as sitemap, design system and auto-login improvements. He pairs operational skills (server administration, Docker, RabbitMQ, PostgreSQL/Mongo) with product-focused thinking and experience managing distributed international teams. Based in Greater Poland, he blends pragmatic engineering with a track record of optimizing systems for scale and maintainability.
10 years of coding experience
15 years of employment as a software developer
Licencjat (Lic.), Computer Science, Licencjat (Lic.), Computer Science at Uniwersytet im. Adama Mickiewicza w Poznaniu
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (5)
php10
mediawiki10
psr-29
git9
javascript3
Programming languages (7)
Github contributions (5)
Wikia/app
May 2018 - Jul 2018
Wikia Application Code
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:29 commits, 7 PRs, 15 pushes in 1 month
Contributions summary:Jarek primarily contributed to the Wikia application code, focusing on both backend and frontend aspects. They modified PHP files, particularly related to the Sitemap and DesignSystem models, and the inclusion of WikiFactory methods. The contributions included adding language paths, updating discussion links, and refactoring code for improved functionality and maintainability. Additionally, the user updated the configuration for auto-login functionality.
wikiphpwikiamediawiki
jmail/wFirmaSDK
Mar 2018 - Mar 2018
Contributions:6 PRs, 17 pushes, 13 branches in 1 day
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