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Senior Machine Learning Engineer, Apple Search & Knowledge Platforms

Seattle, United States of America💼 Full-time🗓 2026-05-14 → 2026-09-28

Core

Developing and fine-tuning large language models (LLMs) and deep learning systems for Open Domain Question Answering, summarization, and search relevance to power Apple's AI products like Siri and Apple Intelligence.

Role type

Senior IC machine learning engineer (LLMs & NLP)

Builds

Production-ready generative AI features for Siri, Apple Intelligence, Safari, and iMessage

Domain

Consumer technology, Generative AI, Natural Language Processing

Deliverable

production ML models

Required skills

Large language model development, Deep learning fundamentals, Model fine-tuning (SFT, RLHF, LoRA), RAG applications, Python, TensorFlow/Pytorch/JAX

Preferred skills

PhD in CS/AI/ML, Large-scale model training and optimization, Scientific publications, LLM safety guardrails design

Technologies

Python, TensorFlow, PyTorch, JAX, LLMs, RAG

Responsibilities

Conduct R&D on state-of-the-art deep learning and LLMs for NLP tasks; Develop and evaluate domain-specific LLMs for summarization, QA, and search; Transfer cutting-edge generative AI research to production; Translate product requirements into modeling and engineering tasks; Stay current with advancements in deep learning and LLMs

Seniority

Senior, hands-on IC

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