Krunoslav Zaher is a veteran engineer with four decades of experience, currently based in Zurich and contributing at Google after leading iOS teams at Bellabeat, Rhapsody/Napster and Five Minutes. He specializes in iOS and reactive programming, with notable open-source work on widely used Swift projects like RxSwift, RxAlamofire and Sourcery that blend UI/UX, data-driven architectures and metaprogramming. As an engineer who "focuses on data structures" rather than just code, he brings a disciplined, systems-minded approach to client-side architecture and API integration. He has a Master's in Computer Software Engineering and a track record of shipping production mobile apps and reusable libraries that simplify asynchronous and UI state management. Colleagues know him for refining APIs, improving developer ergonomics, and turning complex reactive patterns into maintainable implementations.
40 years of coding experience
5 years of employment as a software developer
Master's Degree, Computer Software Engineering, Master's Degree, Computer Software Engineering at Sveuèilište u Zagrebu
The universal system operator and architecture for RxSwift
Role in this project:
Full-stack Developer
Contributions:11 releases, 102 commits, 16 PRs in 2 years
Contributions summary:Krunoslav contributed to the `rxfeedback.swift` repository, which focuses on architecture and system operations for RxSwift. Their work included updating documentation and removing unused code. Additionally, the user added examples, showcasing features such as a paginated search and a Todo list with UI bindings.
UITableView and UICollectionView Data Sources for RxSwift (sections, animated updates, editing ...)
Role in this project:
Front-end Developer
Contributions:26 releases, 246 commits, 59 PRs in 3 years 5 months
Contributions summary:Krunoslav added a `podspec` file, indicating an intent to distribute the project or a portion of it via CocoaPods. The user also made changes to example view controllers, refactoring code related to data source management with RxSwift. These commits show the user working with UI components, table views, and collection views to support animated updates in the context of an iOS framework.
iossourcesdata-sourcesupdatesrxswift
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.