Lead Engineer - Mobile Platform (AI & Cross-Platform) - Remote jobs in United States
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Optum ยท 3 weeks ago

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

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The Lead Engineer for Mobile Platform will be responsible for the development and evolution of a next-generation mobile platform with integrated AI capabilities, focusing on architecture, AI integration, and hands-on development. This role requires strong leadership and collaboration skills to guide teams in building scalable, performant, and secure mobile experiences powered by AI.

EducationHealth CareMedicalPharmaceutical
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H1B Sponsor Likelynote

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 shared components to unify native and RN ecosystems
Performance & Security: Optimize AI features for latency, memory, battery usage, and enforce enterprise security standards
Collaboration: Partner with data scientists, backend engineers, and designers to deliver seamless AI-driven user experiences
Mentorship & Leadership: Provide technical mentorship on both AI/ML and mobile platform engineering
Innovation: Experiment with generative AI, personalization engines, multimodal models, and their deployment in mobile apps
Design, develop, and deploy AI-powered solutions to address complex business challenges with emphasis on responsible use of AI
Leverage enterprise-approved AI tools to streamline workflows, automate tasks, and drive continuous improvement
Evaluate emerging trends to inform solution design and strategic innovation

Qualification

React NativeAI/ML IntegrationMobile Platform ArchitecturePythonSwiftKotlin/JavaCloud PlatformsCI/CD & DevOpsTesting & QAInnovationCollaborationMentorship

Required

Bachelor's or Master's in Computer Science, Engineering, or related field
10+ years of software engineering experience, with at least 5 years in mobile platform architecture
Experience with programming languages: Mobile: React Native, Kotlin/Java, Cross-platform: JavaScript/TypeScript (React Native), AI/ML: Python (PyTorch, TensorFlow, Hugging Face, ONNX)
Mobile Development Tools & Frameworks experience to include: iOS: Xcode, SwiftUI, UIKit, Combine, Android: Android Studio, Jetpack Compose, Gradle, React Native: RN CLI, Expo, Redux/Context API, React Navigation, Metro bundler
AI/ML Tools & Frameworks experience to include: On-device: Core ML, TensorFlow Lite, PyTorch Mobile, ONNX Runtime Mobile, Training/Serving: PyTorch, TensorFlow, Hugging Face Transformers, Optimization: Quantization, pruning, distillation, TensorRT
Cloud & Backend Platforms experience with AWS SageMaker, GCP Vertex AI, Firebase, Azure AI, GraphQL, REST APIs
CI/CD & DevOps: GitHub Actions, Fastlane, Bitrise, Jenkins, AppCenter, Docker, Kubernetes
Testing & QA experience with: React Native: Jest, Detox, iOS: XCTest, Android: Espresso, E2E: Appium
Monitoring & Analytics experience with Firebase Crashlytics, Sentry, Datadog, New Relic, Mixpanel
Security & Privacy experience with OAuth 2.0, JWT, Keychain/Keystore, secure storage, differential privacy

Preferred

Experience leading large-scale React Native + native hybrid projects
Knowledge of generative AI (LLMs, diffusion models, multimodal) applied in mobile contexts
Contributions to open-source React Native or AI libraries
Expertise in design systems for consistent cross-platform UI
Familiarity with global-scale delivery (internationalization, accessibility, offline-first apps)
All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy

Benefits

Comprehensive benefits package
Incentive and recognition programs
Equity stock purchase
401k contribution

Company

Optum is a healthcare company that provides pharmacy services, health care operations, and population health management. It is a sub-organization of UnitedHealth Group.

H1B Sponsorship

Optum has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (648)
2024 (559)
2023 (620)
2022 (851)
2021 (593)
2020 (438)

Funding

Current Stage
Late Stage

Leadership Team

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Daniel Castillo
Chief Executive Officer, Optum Care Delivery
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J
Jay Green
Chief Financial Officer
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Company data provided by crunchbase