Worked on an ecommerce app for construction materials. Covered app lifecycle from prototyping (TestFlight) to AppStore distribution.- Implemented email/password authentication with secure token storage (Security).- Added universal links support redirecting to certain app pages (e.g., order confirmation email leading to the respective order page within the app).- Combined Stripe payment and Zoho payment linked to a backend setup on AWS.- Designed a dropdown suggestions view for address autofill linked to Google Places.- Integrated customer support chat (Mobilisten).- Added localization (export/import .xcloc files).

Worked on a sustainability app focused on sharing products among users. Covered app lifecycle from prototyping (TestFlight) to AppStore distribution.- Created a user profile system that accommodates both unauthenticated (guest) and authenticated access, employing AWS Amplify (AWSCognitoAuthPlugin, AWSAPIPlugin). User data is combined during the shift from guest mode to authenticated access (sign-in, sign-up), similar to an online store's shopping cart.- Implemented offline data storage using Core Data, synchronized with the user profile system. Added rollback support for editing product information.- Developed a feature that detects products using Google MLKit object/barcode detection capabilities (linked to AWS backend setup).- Designed a UI overlay that dynamically draws object bounds on the camera feed. Added custom animations for product scanning phases (detection, confirmation, search) using the Core Animation framework (CAShapeLayer, CABasicAnimation, CAAnimationGroup).- Created custom chat UI and corresponding functionality by integrating a web socket (Starscream) linked to a backend infrastructure established with Amazon Chime. Enabled push notifications.- Added support for dev and prod environments using schemas (build configurations). Used Copy Files Phases (build phases) to copy appropriate configurations and resources for an environment.

Worked on a financial analysis app for stock risk management. Covered app lifecycle from prototyping (TestFlight) to AppStore distribution. Later, transitioned to a team lead position, overseeing Android and iOS development.- Implemented phone number authentication with secure token storage (Security), adding the option of biometric authentication.- Implemented offline data storage using Core Data framework for memory management.- Designed custom financial graph visualizations that met specific requirements using Core Animation framework (CAShapeLayer, CAGradientLayer).- Implemented video streaming and persistence capabilities through AVFoundation framework.- Added support for dev and prod environments using schemas (build configurations).

Worked on a scanning and editing app for documents catering to both iPhone and iPad platforms.- Developed a feature that detects documents by utilizing the Vision framework's rectangle/document detection capabilities.- Designed an interactive UI overlay that dynamically draws document bounds on the camera feed, with the option for manual adjustments, similar to the default Notes app.- Developed a feature for cropping documents with perspective correction, using the Core Image framework (CIFilter, CIVector).- Employed the Instruments application effectively for debugging and conducting performance analysis.