Lead Engineer - Mobile Platform (AI & Cross-Platform) - RemoteOptum • Minnetonka, Minnesota, United States
Lead Engineer - Mobile Platform (AI & Cross-Platform) - Remote
Optum
- Minnetonka, Minnesota, United States
- Minnetonka, Minnesota, United States
Über
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 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
You’ll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in.
Required Qualifications
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 Qualifications
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)
Pay is based on several factors including but not limited to local labor markets, education, work experience, certifications, etc. In addition to your salary, we offer benefits such as, a comprehensive benefits package, incentive and recognition programs, equity stock purchase and 401k contribution (all benefits are subject to eligibility requirements). No matter where or when you begin a career with us, you’ll find a far‑reaching choice of benefits and incentives. The salary for this role will range from $112,700 to $193,200 annually based on full‑time employment. We comply with all minimum wage laws as applicable.
All employees working remotely will be required to adhere to UnitedHealth Group’s Telecommuter Policy.
UnitedHealth Group is an Equal Employment Opportunity employer under applicable law and qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations.
UnitedHealth Group is a drug‑free workplace. Candidates are required to pass a drug test before beginning employment.
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Sprachkenntnisse
- English
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