Machine Learning Systems Engineer, Siri Agent Modeling
Core
Optimize model training and inference for Apple's Siri AI assistant across iOS, iPadOS, macOS, watchOS, and visionOS.
Role type
Senior IC machine learning systems engineer (Siri agent modeling)
Builds
Production ML models for Apple Intelligence
Domain
Consumer AI / Mobile OS
Deliverable
production ML models
Required skills
Python, PyTorch, Transformer architectures, CUDA, NCCL, agentic AI-assisted coding, model lifecycle management
Preferred skills
LLM optimization (quantization, KV Cache, Speculative Decoding), distributed training (FSDP, DDP), LLM training/eval libraries (HuggingFace, Megatron-LM), compiled languages (Swift, C/C++, Java)
Technologies
Apple Silicon, PyTorch, CUDA, NCCL, HuggingFace, Megatron-LM
Responsibilities
Optimize model training and inference performance; Write production-level code to train and deploy models; Collaborate with cross-functional teams on data, modeling, evaluation, and deployment
Seniority
Senior, hands-on IC