Roberto Teixeira

Ported the World Winner client from a Unity-based implementation to a fully native iOS application using Swift and SwiftUI. Led development of the Face Off app from the ground up as a native iOS application. Migrated a large production iOS codebase from UIKit to SwiftUI, improving UI performance and maintainability. Designed and maintained scalable iOS architectures using MVVM, protocol-oriented programming, and unidirectional data flow. Implemented deep links, modal navigation, feature flags, and remote configuration. Integrated RESTful APIs for tournaments, wallet, pagination, background refresh, and real-time updates using async/await and Combine. Managed iOS code signing, provisioning profiles, App Store Connect, and release pipelines. Embedded Unity Framework inside a native iOS container to support hybrid gameplay experiences. Instrumented analytics, experiments, and user segmentation using Amplitude, Braze, and Sentry.

Designed and built real-time simulation systems with complex state synchronization across multiple machines. Developed an internal iPad application using UIKit and VIPER for simulation control. Built .NET/C# networking middleware for telemetry broadcasting and synchronization. Created WPF-based operator tooling for real-time monitoring and control.

Developed and maintained mobile applications and games for iOS and Android. Built native iOS and Android integrations to support third-party SDKs and platform features. Designed web systems using ASP.NET MVC for dashboards, reporting, and backend services.