Research Engineer / Scientist
Core
Drive training data strategy and model evaluation across the full lifecycle (pre-, mid-, and post-training) for Apple's foundation models to improve model quality and predict real user experience.
Role type
Senior technical leader / Research Engineer (Data & Evaluation)
Builds
Foundation models for Apple products (server and on-device)
Domain
Artificial Intelligence / Large Language Models / Data Infrastructure
Deliverable
production ML models
Required skills
Machine Learning (LLMs, multimodal), Statistics & Experimental Design, Python, PyTorch/JAX, Distributed Data Systems, Data Curation, Model Evaluation, Technical Leadership
Preferred skills
PhD, Experience with scaling-law studies, LLM-as-a-judge frameworks, Data provenance & licensing, Team management
Technologies
Python, PyTorch, JAX, Apache Beam, Spark, Cloud platforms
Responsibilities
Shape strategy for training data and evaluation across pre-, mid-, and post-training; Lead data ablations and scaling-law studies; Define evaluation portfolios and benchmarks; Architect high-throughput data systems for petabytes of data; Drive data provenance, privacy, and compliance; Mentor teams and drive adoption of shared systems.
Seniority
Senior, hands-on IC with leadership responsibilities
