Remote Lead Mobile Platform Architect & AI

Optum; United States; Hybrid; USD 112,700 - 193,200; Full time

Job summary

Optum is seeking a Senior Mobile Platform Architect to lead architecture across native iOS/Android and React Native, integrating AI/ML capabilities into scalable, secure mobile experiences.

The role requires strategic vision, hands-on engineering leadership, and mentorship to teams, with a focus on performance, security, and innovative AI deployment in mobile apps. Remote work is available within the U.S., with in-office four days weekly in specified locations.

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.
• Proficiency with iOS: Xcode, SwiftUI, UIKit, Combine.
• On-device AI/ML: Core ML, TensorFlow Lite, PyTorch Mobile, ONNX Runtime Mobile.
• Training/Serving: PyTorch, TensorFlow, Hugging Face Transformers.
• Optimization: Quantization, pruning, distillation, TensorRT.
• Cloud/Backend: AWS SageMaker, GCP Vertex AI, Firebase, Azure AI, GraphQL, REST APIs.
• Testing: iOS XCTest, Android Espresso, E2E with Appium.
• Monitoring: Firebase Crashlytics, Sentry, Datadog, New Relic, Mixpanel.
• Security/Privacy: OAuth 2.0, JWT, Keychain/Keystore, secure storage, differential privacy.

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.
• React Native Expertise: Architect hybrid apps combining React Native with native modules.
• Performance: Leverage Fabric, TurboModules, and Hermes for performance.
• CI/CD: 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.
• Security: Enforce enterprise security standards and optimize AI features for latency and memory usage.
• Collaboration: Work with data scientists, backend engineers, and designers to deliver AI-driven experiences.
• Leadership: Provide mentorship on AI/ML and mobile platform engineering.
• Innovation: Experiment with generative AI, personalization engines, multimodal models, and deployment in mobile apps.
• Responsible AI: Design AI solutions with responsible use and enterprise-grade governance.
• Adoption: Leverage enterprise-approved AI tools to streamline workflows and drive improvements.
• Strategy: Monitor trends to inform solution design and innovation.

Skills

Mobile platform architecture

AI/ML integration

React Native

Cross-platform frameworks

Education

Bachelor’s or Master’s in Computer Science/Engineering

Tools

Xcode

SwiftUI

UIKit

Combine

Core ML

TensorFlow Lite

PyTorch Mobile

ONNX Runtime Mobile

PyTorch

TensorFlow

Hugging Face Transformers

TensorRT

AWS SageMaker

GCP Vertex AI

Firebase

Azure AI

GraphQL

REST APIs

XCTest

Espresso

Appium

Firebase Crashlytics

Sentry

Datadog

New Relic

Mixpanel

OAuth 2.0

JWT

Keychain/Keystore

Job description

Optum is seeking a Senior Mobile Platform Architect to lead architecture across native iOS/Android and React Native, integrating AI/ML capabilities into scalable, secure mobile experiences.

The role requires strategic vision, hands-on engineering leadership, and mentorship to teams, with a focus on performance, security, and innovative AI deployment in mobile apps. Remote work is available within the U.S., with in-office four days weekly in specified locations.