United States onlyWe’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.Responsibilities
- 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.
Tech Stack
- 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: JetBrains Rider, Visual Studio, VS Code, Xcode, Android Studio, Azure DevOps, crash & performance monitoring tools
- APIs: REST, JSON, GraphQL, OAuth2
Qualifications
- 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)
- Cross-platform frameworks such as .NETMAUI, 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.
As part of our selection process, external candidates may be required to attend an in-person interview with an NBCUniversal employee at one of our locations prior to a hiring decision. NBCUniversal's policy is to provide equal employment opportunities to all applicants and employees without regard to race, color, religion, creed, gender, gender identity or expression, age, national origin or ancestry, citizenship, disability, sexual orientation, marital status, pregnancy, veteran status, membership in the uniformed services, genetic information, or any other basis protected by applicable law.
If you are a qualified individual with a disability or a disabled veteran and require support throughout the application and/or recruitment process as a result of your disability, you have the right to request a reasonable accommodation. You can submit your request to AccessibilitySupport@nbcuni.com.
Although you'll be hired as an NBCU employee, your employment and the responsibilities associated with this job likely will transition to Versant in the future. By joining at this pivotal time, you'll be a part of this exciting company as it takes shape.
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.
Comcast NBCUniversal has announced its intent to create a new publicly traded company ('Versant') comprised of most of NBCUniversal's cable television networks, including USA Network, CNBC, MSNBC, Oxygen, E!, SYFY and Golf Channel along with complementary digital assets Fandango, Rotten Tomatoes, GolfNow, GolfPass, and SportsEngine. The well-capitalized company will have significant scale as a pure-play set of assets anchored by leading news, sports and entertainment content. The spin-off is expected to be completed during 2025.
