Artur Klajnerok
Principal Engineer at HyperIO
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolArtur Klajnerok is a Principal Engineer and identity specialist with 12 years of experience building and scaling authentication and security platforms at Auth0 and Okta. He combines hands-on backend expertise—shipped auth services and preference-management work at Wikia—with mobile and React Native UI contributions, demonstrating full-stack fluency. As an engineering lead he focuses on shipping AI-enabled agents with built-in auth and security, making identity seamless for developers and enterprises. A founder and product-minded engineer, he has scaled consumer products (Wikia growth to hundreds of millions MAU) and launched startups, bringing an operator’s sensibility to platform design. Based in San Francisco, he pairs rigorous distributed-systems and API design experience with a knack for turning complex security needs into developer-friendly integrations.
11 years of coding experience
15 years of employment as a software developer
Postgraduate education Database Systems, Postgraduate education Database Systems at Poznan University of TechnologyMaster's degree Computer Science, Master's degree Computer Science at Uniwersytet im. Adama Mickiewicza w Poznaniu
Polish, English, German
Stackoverflow
41reputation
3kreached
1answer
0questions
Github Skills (17)
mediawiki10
react-native10
back-end-development10
styled-components10
php10
backend10
react10
javascript9
ios9
ui-design9
expo9
android9
mobile9
android-developer9
android-developers9
Programming languages (7)
Github contributions (5)
Wikia/app
Jan 2015 - Dec 2016
Wikia Application Code
Role in this project:
Back-end Developer
Back-end DeveloperContributions:196 commits, 73 PRs, 126 pushes in 1 year 10 months
Contributions summary:Artur's contributions primarily involve modifications to PHP files, focusing on user preference management within the `wikia/app` repository, which suggests a strong backend development focus. The commits include implementing local and global preference settings, retrieving preferences, and integrating with a preference service. Furthermore, changes were made to `SpecialUserlogin.php`, indicating work related to user authentication and settings during login. The user also integrated preference settings with the existing code base.
wikiphpwikiamediawiki
withspectrum/spectrum
Apr 2018 - May 2018
Simple, powerful online communities.
Role in this project:Mobile Developer
Mobile DeveloperContributions:20 commits, 5 PRs, 8 comments in 16 days
Contributions summary:Artur focused on enhancing the mobile application's UI and features within the React Native framework. They implemented new UI components, updated existing ones, and refactored code to improve the application's overall design and user experience. The commits show a strong emphasis on component styling, layout adjustments, and integrating new icons for the tab navigation. Furthermore, they made changes to align the mobile app with the latest Avatar and Facepile components.
reactrethinkdbjavascriptstyled-componentscommunities
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