> Markdown version of [/jobs/ext/3954228-senior-software-engineer-on-device-health-agentic-systems](https://www.wearedevelopers.com/jobs/ext/3954228-senior-software-engineer-on-device-health-agentic-systems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer, On-Device Health Agentic Systems

- **Company:** Apple Inc.
- **Location:** Sunnyvale, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, IOS Applications, Apple IOS, Apple Mac Systems, Architectural Patterns, C++ (Programming Language), Software Debugging, Memory Management, Mobile Application Software, Objective-C (Programming Language), Software Architecture, Tensorflow, Software Engineering, System Programming, Systems Integration, Swiftui, Retrieval-Augmented Generation, Large Language Models, Concurrency, Caching, Agentic-AI, Optimization Algorithms, Model Quantization, Virtual Agents, Multiplatform
- **Published:** October 27, 2026
- **Apply:** https://www.dice.com/job-detail/173edf92-181a-4896-92f7-0fbd15996294

## About the Role

BS and 10+ years of professional software development with expert-level experience building high-performance, consumer-facing mobile applications and frameworks.

Strong proficiency in a modern systems programming language such as C++, ObjectiveC/Swift, or Rust.

Deep understanding of mobile system fundamentals: concurrency, memory management, and power optimization.

Practical knowledge of how LLM-powered systems work, including agent frameworks and RAG architectures.

Proficiency in AI-assisted development workflows, with experience going beyond simple code suggestions to tackle complex debugging, architectural trade-offs, or automation tasks.

Preferred Qualifications

Experience with on-device ML frameworks like Core ML, Foundation Model, etc.

Experience in SwiftUI and modern iOS architectural patterns.

Knowledge of model quantization, caching, and other on-device optimization techniques.

Experience with multi-platform development (e.g., building for both iOS and macOS).

## Description

We are seeking a senior iOS Software Engineer with deep experience building applications powered by Large Language Models (LLMs). This is a hands-on development role focused on creating the next generation of intelligent on-device experiences for Apple users., You will be responsible for building cutting-edge iOS applications that serve as the primary interface for on-device AI. A key part of your role will be to explore and define the software architecture for a scalable, high-performance system that seamlessly integrates powerful LLM agents into the Apple ecosystem, all while prioritizing user privacy and on-device performance. This role is for an expert iOS developer passionate about building the foundational architecture for AI-driven applications.

This is a unique opportunity to define the future of intelligent applications at Apple. You will be at the center of building a new class of on-device experiences, setting the architectural foundation for how millions of users will interact with AI on a daily basis., Scalable On-Device Architecture: Design the client-side frameworks and architectural patterns for integrating LLM systems efficiently on iOS.

 - LLM Agent Integration: Implement the software that connects user-facing applications to on-device and hybrid AI reasoning and planning engines.

 - Interactive AI Prototypes: Rapidly build and iterate on application prototypes to explore new user interactions and architectural options.