Senior .NET Mobile Engineer

Company Description

NBCUniversal is one of the world’s leading media and entertainment companies. We create world-class content, which we distribute across our portfolio of film, television, and streaming, and bring to life through our theme parks and consumer experiences. We own and operate leading entertainment and news brands, including NBC, NBC News, MSNBC, CNBC, NBC Sports, Telemundo, NBC Local Stations, Bravo, USA Network, and Peacock, our premium ad-supported streaming service.

We produce and distribute premier filmed entertainment and programming through Universal Filmed Entertainment Group and Universal Studio Group, and have world-renowned theme parks and attractions through Universal Destinations & Experiences. NBCUniversal is a subsidiary of Comcast Corporation. Our impact is rooted in improving the communities where our employees, customers, and audiences live and work. We have a rich tradition of giving back and ensuring our employees have the opportunity to serve their communities.

We champion an inclusive culture and strive to attract and develop a talented workforce to create and deliver a wide range of content reflecting our world.

We’re looking for a Senior Mobile Software Engineer with deep expertise in .NET mobile development and a strong foundation in native iOS and Android development. This role focuses on delivering high-quality, performant mobile applications using .NET (C#) while leveraging platform capabilities to ensure the best possible user experience. You’ll work on apps used by millions, driving feature implementation, architecture, and platform-level decisions.

• Design, build, and maintain mobile applications using .NET for iOS and Android.
• Collaborate across disciplines (product, design, backend) to deliver high-impact mobile experiences.
• Write high-quality C# code and contribute to native platform code in Swift (iOS) and Kotlin/Java (Android) as needed.
• Lead integration efforts with native SDKs, custom UI components, and low-level platform features.
• Guide architectural decisions balancing cross-platform efficiency with native performance and UX.
• Own debugging, profiling, and optimization for responsiveness, startup time, and resource usage.
• Create and maintain unit, integration, and automated UI tests.
• Help evolve and maintain CI/CD pipelines for reliable mobile delivery.
• Stay informed on the latest developments in .NET, iOS, and Android ecosystems and recommend adoption where beneficial.

• Core: .NET for iOS and Android (C#), SDK-style .NET 8+ projects
• Native:
  Swift, Objective-C, Kotlin, Java
• Architectures: MVVM, Dependency Injection, async/await, multi-targeting
• Tooling:
  Jet Brains Rider, Visual Studio, VS Code, Xcode, Android Studio, Azure Dev Ops, crash & performance monitoring tools
• APIs: REST, JSON, Graph
  
  QL, OAuth2

• 5+ years of mobile development experience, including extensive experience with .NET mobile development using C#.
• Strong native iOS development experience (Swift, UIKit, Xcode).
• Strong native Android development experience (Kotlin, Jetpack, Android Studio).
• Proven ability to integrate and maintain native SDKs and platform-specific functionality, including creating and maintaining bindings for iOS and Android libraries.
• Experience building and maintaining production apps with large user bases.
• Strong understanding of mobile app architecture, lifecycle management, and platform guidelines (App Store / Play Store).
• Solid testing practices including unit, integration, and UI automation.
• Comfortable working in a collaborative, agile team environment.
• Ability to think creatively, solve complex problems, and contribute innovative ideas that enhance product quality and user experience.
• Bonus:
  Familiarity with Firebase, in-app purchases, third-party login integrations (e.g., Google, Facebook) and cross-platform frameworks such as .NET MAUI, React Native, Flutter, or Kotlin Multiplatform.

Fully Remote:
This position has been designated as fully remote, meaning that the position is expected to contribute from a non‑NBCUniversal worksite, most commonly an employee’s residence.

• This position may require up to 10% travel for…