I need an experienced iOS engineer to turn a business concept into a polished customer-management application. The core of the project is a secure, friction-free user registration and login flow that will serve as the foundation for everything else we add later. The workflow is straightforward: design the screens in Swift / UIKit (SwiftUI is fine if you prefer), wire them to a clean MVVM architecture, and connect to our existing REST endpoints for authentication. I already have the API documentation and brand assets ready to share as soon as we start. Key expectations • Build an App Store-ready iOS app focused on customer management • Implement email-based sign-up, password reset, and login with JWT token handling (Sign in with Apple is a plus) • Use best-practice security (Keychain, TLS, rate-limiting) • Clean, commented Swift code and Xcode project that compiles without warnings • A short hand-off session or video walkthrough so my internal team can pick up future features If you have shipped at least one business-grade iOS app and are comfortable with Git, TestFlight, and fastlane, let’s talk.