Karolina Samorek

Apr 2025 to Current

I set the technical direction for the iOS app, plan releases, help the team through critical bugs and keep the work with QA and design running smoothly.

• Designed and built automated tests that take over regression testing and speed up releases.
• Leading the move of the codebase to SwiftUI and Swift Concurrency. Rebuilt the Home screen in SwiftUI, together with the new API behind it.
• Led a feature where users get a colored version of a drawing as a reference and try to recreate it.
• Led adapting the app to iPhone Duo, Apple's foldable iPhone, including the design reviews.
• Introduced AI coding agents into the team's daily work.

Feb 2021 to Mar 2025

• Led the technical side of a new coloring experience: a rewrite of the coloring screen so it could grow with new brushes and features. Designed how its parts work together and built its animations and sliders.
• Built the color palettes and a tool for creating them, including an algorithm that generates lighter and darker shades of each color.
• Created the app's design system and looked after it for over three years.
• Started and led the move to a modular architecture: the app split into Swift packages by layer, with dependency injection and a step by step migration plan.

Apr 2017 to Jan 2021

Built iOS and web apps for startups in IoT, finance, productivity, health and fashion. Worked on internal R&D and open source libraries, and promoted clean architecture and automated testing. Client work included a React and TypeScript web app for Tara, an engineering management startup.

Oct 2015 to Mar 2017

iOS apps for controlling smart heating systems, in Swift, Objective-C and Xamarin.

Jun 2015 to Sep 2015

A hotel platform in .NET and Ruby.

Feb 2013 to Jun 2015

.NET desktop applications and services in C# and C++.

Feb 2013 to Sep 2015

Oct 2009 to Feb 2013