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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** Apple Inc. - **Location:** Cupertino, CA, United States - **Experience:** Expert - **Salary:** $184,700.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, IOS Applications, Apple IOS, Apple Mac Systems, Architectural Patterns, C++ (Programming Language), Memory Management, Mobile Application Software, Machine Learning, Objective-C (Programming Language), Software Architecture, Tensorflow, Software Engineering, System Programming, Systems Integration, Swiftui, Retrieval-Augmented Generation, Large Language Models, Prompt Engineering, Ios Frameworks, Caching, Agentic-AI, Optimization Algorithms, Model Quantization, Virtual Agents, Model Inference, Multiplatform - **Published:** October 4, 2026 - **Apply:** https://www.themuse.com/jobs/apple/senior-software-engineer-ondevice-health-agentic-systems-9b9085 ## About the Role 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). Minimum Qualifications 5+ 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. A demonstrated ability to quickly master new languages and platforms is highly valued. Deep understanding of mobile system fundamentals: concurrency, memory management, and power optimization., Practical knowledge of how LLM-powered systems work, including prompt engineering, agent frameworks, or RAG architectures. ## 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., 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. Impact: 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. Responsibilities: Lead the development of sophisticated iOS frameworks and applications that integrate directly with on-device LLM systems on Apple platforms. Architect robust, scalable, and power-efficient software patterns for AI-powered features on iOS. Collaborate with ML and AI researchers to translate cutting-edge models into tangible application features. Implement and optimize the on-device components for LLM inference, context management, and tool execution. ## Related Videos - [Harnessing Apple Intelligence: Live Coding with Swift for iOS](https://www.wearedevelopers.com/videos/1515-harnessing-apple-intelligence-live-coding-with-swift-for-ios) - [Xcode development redefAIned](https://www.wearedevelopers.com/videos/100195-xcode-development-redefained) - [From Zero to Mobile Developer in 45 Minutes With SwiftUI](https://www.wearedevelopers.com/videos/183-from-zero-to-mobile-developer-in-45-minutes-with-swiftui) - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [Mobile at a Crossroads: The Declarative UI App Revolution](https://www.wearedevelopers.com/videos/207-mobile-at-a-crossroads-the-declarative-ui-app-revolution) - [Edge AI on iOS: Beyond the Cloud, Designing the Next Generation of Intelligent On-Device Apps](https://www.wearedevelopers.com/videos/100225-edge-ai-on-ios-beyond-the-cloud-designing-the-next-generation-of-intelligent-on-device-apps) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [Dev Digest 118 - not a total recall](https://www.wearedevelopers.com/magazine/452-dev-digest-118-not-a-total-recall) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)