Senior Software Engineer, On-Device Health Agentic Systems

Apple • Cupertino, CA

84d

About The Position

We are seeking a highly innovative and experienced Software Engineer to join our team, focused on pioneering the next generation of intelligent, on-device experiences! Our team presents an excellent opportunity to lead the development of a complex system that bridges the gap between powerful LLMs and the resource-constrained environment of mobile devices. Our work directly impacts the core functionality of our products, enabling new, seamless user workflows and intelligent interactions! Are you ready to leave an enduring mark on the world of technology and deliver groundbreaking Apple products? In this role, you will be responsible for designing, building, and deploying Agentic Large Language Model (LLM) features that run directly on Apple devices and servers. You will work on a mission-critical system that empowers users with intelligent, context-aware, and autonomous capabilities, all while prioritizing user privacy and on-device performance.

Requirements

• Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience.
• 5+ years of professional software engineering experience, with a significant focus on mobile development (iOS).
• Proven experience building and shipping complex, high-performance applications that run on-device.
• Strong understanding of mobile system fundamentals, including concurrency, memory management, and power optimization.
• Experience or strong interest in AI/ML concepts, particularly in the areas of Large Language Models, agentic systems, and MLOps.

Nice To Haves

• Experience working with on-device LLMs or other on-device ML models (e.g., using Core ML, TensorFlow Lite, or PyTorch Mobile).
• Hands-on experience with agentic frameworks or tool-use architectures (e.g., LangChain, custom agents).
• Strong skills in Swift (desired) and at least one other object-oriented programming language.
• Experience with on-device databases (e.g., Core Data, Realm, SQLite).
• Experience with multi-platform development or building systems that operate across different operating systems.
• Knowledge of model quantization, pruning, and other on-device optimization techniques.
• Experience with distributed systems and client-server communication.
• A track record of leading complex technical projects from concept to launch.
• A passion for building innovative user experiences.
• Exceptional problem-solving and analytical skills.
• The ability to thrive in a fast-paced, ambiguous environment where you are building a new and emerging technology.
• Excellent communication and collaboration skills, with the ability to articulate complex technical concepts to a variety of audiences.

Responsibilities

• Design, build, and deploy Agentic Large Language Model (LLM) features that run directly on Apple devices and servers.
• Work on a mission-critical system that empowers users with intelligent, context-aware, and autonomous capabilities.
• Prioritize user privacy and on-device performance.

What This Job Offers

• Education Level: Bachelor's degree
• Number of Employees: 5,001-10,000 employees