Krzysztof Derek

Engineering Manager at Fandom

Poland
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Summary

👤
Senior
🎓
Top School
Krzysztof Derek is an engineering manager with 11 years in software development and over 8 years in leadership, currently directing two cross-functional teams at Fandom that build experiences for 300M monthly users. He blends pragmatic, agile delivery with hands-on full-stack experience—from React/Ember front-ends to Java microservices and PHP back-end tweaks—ensuring both product velocity and code quality. Known for building high-performing teams through mentorship, hiring, and tailored processes, he pairs people-first management with rigorous project and risk oversight. He also mentors aspiring developers at Kodilla and has contributed backend improvements to widely used projects like the Wikia app, reflecting a practical open-source mindset. Outside work he’s oddly fond of pandas, emojis and heavy music, a small hint at the curious, human side behind his engineering focus.
code11 years of coding experience
job6 years of employment as a software developer
bookMaster of Science (M.Sc.), Inżynieria budownictwa, Master of Science (M.Sc.), Inżynieria budownictwa at Politechnika Poznańska
languagesEnglish, German
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Github Skills (4)

web-development10
php10
api9
apidoc9

Programming languages (6)

JavaCSSJavaScriptPHPHTMLPython

Github contributions (5)

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Wikia/app

Sep 2017 - Nov 2020

Wikia Application Code
Role in this project:
userBack-end Developer
Contributions:4 reviews, 273 commits, 96 PRs in 3 years 2 months
Contributions summary:Krzysztof primarily contributed to the application's codebase by modifying PHP files and updating URLs for app buttons within the global footer. Their work focused on updating and extending the functionality of the DesignSystemSharedLinks class, adding localized app store and Google Play links based on the user's language. The user also modified the DesignSystemGlobalFooterModel, suggesting a focus on back-end development and potentially API or service integration.
wikiphpwikiamediawiki
xkxd/gulp-html-partial

Jan 2017 - Apr 2017

Gulp plugin for including HTML files into each other
Contributions:4 commits, 8 pushes, 1 branch in 2 months
gulp-plugingulphtml-files
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