Senior Software Engineer, On-Device Health Agentic Systems

Apple Inc.; Sunnyvale (CA); On-site; USD 185,000 - 325,000; Full time

Benefits offered by this job

Stock purchase plan

Discretionary bonuses

Education reimbursement

Relocation assistance

Medical and dental coverage

Tuition reimbursement

Job summary

Apple Inc. seeks a senior iOS Software Engineer to design and build on‑device AI powered applications and scalable architectures. You will craft the foundation for integrating powerful LLM agents while prioritizing user privacy and performance on Apple devices.

The role emphasizes hands-on development, architecture definition, and collaboration across teams to create a new class of on‑device experiences for millions of users.

Qualifications

• BS degree in Computer Science or related field; 10+ years of professional software development experience.
• Expert-level experience building high-performance, consumer-facing mobile applications and frameworks.
• Proficiency in modern systems programming languages (C++, Objective-C/Swift, Rust).
• Deep understanding of mobile system fundamentals: concurrency, memory management, and power optimization.
• Knowledge of how LLM-powered systems work, including agent frameworks and RAG architectures.
• Proficiency in AI-assisted development workflows and tackling architectural trade-offs.

Responsibilities

• Architect and build innovative, high-performance on-device apps that showcase the power of intelligent LLM agents.
• Design client-side frameworks and architectural patterns for integrating LLM systems efficiently on iOS.
• Implement software that connects user-facing apps to on-device and hybrid AI reasoning and planning engines.
• Rapidly build and iterate on application prototypes to explore new user interactions and architectural options.

Skills

Mobile app development

C++

Objective-C/Swift

Rust

Concurrency

Memory management

AI/LLM integration

Debugging/architecture trade-offs

Education

BS degree in Computer Science or related

Tools

Core ML

Foundation Model

SwiftUI

iOS frameworks

LLM agent frameworks

Job description

Senior Software Engineer, On-Device Health Agentic Systems

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.

Description

• AI‑Powered iOS Applications: Architect and build innovative, high‑performance on‑device apps that showcase the power of intelligent LLM agents.
• 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.

Minimum Qualifications

• 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).

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $184,700 and $324,800, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits.

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Learn about accessibility in Apple’s workplace. Learn about reasonable accommodations for job applicants.

Apple accepts applications to this posting on an ongoing basis.