Bartosz Waresiak
Lead Software Engineer at DuckDuckGo
Cracow Metropolitan Area Poland
Summary
🤩
Rockstar🎓
Top SchoolBartosz Waresiak is a Lead Software Engineer with 21 years of experience, specializing in iOS development, performance optimization, and architecture. He has progressed from contributor roles in Google Summer of Code to technical leadership at Base CRM and now drives engineering at DuckDuckGo, where he’s contributed notable UI and performance improvements to the popular DuckDuckGo iOS app. Daily-practice expertise in memory management (manual and ARC), multithreading, Core Data, Xcode/Instruments, and TDD informs his pragmatic approach to reliable, high-performance mobile software. Passionate about game development and automation, he pairs deep algorithmic and design-pattern knowledge with a track record of shipping smoother scrolling, theme support, and UI optimizations on production apps. Based in the Cracow metropolitan area, he combines hands-on coding with mentoring and cross-functional delivery at scale.
21 years of coding experience
11 years of employment as a software developer
Master of Science (M.Sc.), Applied Computer Science, Master of Science (M.Sc.), Applied Computer Science at Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
English
Github Skills (7)
uid10
swift10
ios10
front-end-development10
ui-design9
graphical-user-interface9
user-interface9
Programming languages (6)
Github contributions (5)
duckduckgo/iOS
Mar 2018 - Jan 2023
DuckDuckGo iOS Application
Role in this project:
iOS Mobile Developer
iOS Mobile DeveloperContributions:15 releases, 350 reviews, 342 commits in 4 years 11 months
Contributions summary:Bartosz primarily focused on enhancing the iOS mobile application, specifically improving scrolling behavior to match Safari and resolving an issue with the iPhone X. They refactored code and optimized the UI to increase app performance. The user also contributed to supporting the light theme, including UI tweaks and design updates for various components.
ios-applicationduckduckgoprivacyprivate-searchprivate-browsing
bitrise-io/DuckDuckGo-iOS
Aug 2019 - Nov 2020
DuckDuckGo iOS Application
Contributions:82 commits in 1 year 3 months
ios-application
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