Lead Engineer - Mobile Platform (AI & Cross-Platform) - Remote

About this role

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together.

Development, and evolution of our next-generation mobile platform with integrated AI capabilities. The ideal candidate will have deep expertise in cross-platform frameworks (React Native), and AI/ML integration. This role requires strategic architectural vision, solid hands-on engineering skills, and the ability to guide teams in building scalable, performant, and secure mobile experiences powered by AI.

You'll enjoy the flexibility to work remotely \* from anywhere within the U.S. as you take on some tough challenges.
For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week.

Primary Responsibilities:

- Architecture & Platform Leadership: Define and drive the technical roadmap across native (iOS, Android) and cross-platform (React Native) solutions
- AI Integration: Implement and optimize AI/ML models for mobile apps using Core ML, TensorFlow Lite, PyTorch Mobile, and ONNX Runtime Mobile
- Hands-on Development: Deliver clean, scalable, and maintainable code in Swift, Kotlin/Java, TypeScript/JavaScript (React Native), and Python for ML workflows
- React Native Expertise:
- Architect hybrid apps combining React Native with native modules
- Leverage Fabric, TurboModules, and Hermes for performance
- Enable OTA updates via CodePush, Expo Updates, and ensure smooth CI/CD delivery
- Framework & Tooling: Establish SDKs, libraries, and share...