Olha Bereziuk

• Built and released an iOS app on the App Store using SwiftUI and SwiftData • Implemented StoreKit subscriptions and Firebase integrations • Used Swift Concurrency (async/await) in production app flows • Focused on maintainability, App Store delivery, and post-release stability

• Continue development and maintenance of an existing production iOS application • Implement new features and support ongoing product improvements in a cross-functional team • Contribute to production releases, bug fixing, and application stability • Collaborate remotely with product managers, backend developers, and designers

• Developed and maintained iOS applications for German media products, including an app with more than 2 million users • Migrated legacy UIKit screens and flows to SwiftUI to improve maintainability and reduce UI complexity • Developed a reusable audio player Swift Package used across multiple iOS projects • Collaborated with backend developers, designers, QA engineers, and product managers • Participated in code reviews and ongoing improvements of the iOS codebase

• Worked on a production iOS application for Crown Resorts as part of a commercial development team • Implemented Firebase Analytics to support data-driven product improvements • Redesigned and extended application flows and UI screens based on product requirements • Improved onboarding and registration flows to reduce friction for new users • Maintained and improved the existing iOS codebase through bug fixing and feature delivery

• Maintained enterprise infrastructure and internal systems • Supported operational stability and technical maintenance processes