Applied AI Engineer, Agent Harness
Core
Build the agent runtime harness that enables large language models to act, execute tool calls, and manage multi-step tasks for Apple's AI assistant.
Role type
Senior systems engineer (LLM agent harness)
Builds
The core runtime for an AI assistant used by hundreds of millions of people
Domain
Consumer AI / Mobile Systems
Deliverable
production ML models
Required skills
Systems programming (Swift, C++, Rust, Go), LLM behavior understanding, concurrency, inter-process communication, performance optimization, agent orchestration, tool calling, streaming protocols, eval design
Preferred skills
Apple platform development, multi-step tool-use systems, latency-sensitive client-server systems, API design, privacy/security engineering, context engineering
Technologies
Swift, C++, Rust, Objective-C, Go, Apple Intelligence, Private Cloud Compute
