CareerPlanSign in

Sr. Machine Learning Engineer, Siri Global

Cupertino, United States of America💼 Full-time🗓 2026-07-16 → 2026-09-28

Core

Design, build, and deploy world-class machine learning systems to improve the accuracy, speed, reliability, and capability of Global Siri's models and systems across Apple devices.

Role type

Senior IC machine learning engineer / tech lead (full-stack)

Builds

End-to-end ML product engineering for Siri on Apple devices (iPhone, iPad, Watch, Mac, AirPods, HomePod, Vision Pro, Apple TV)

Domain

Consumer AI / NLP / LLMs

Deliverable

production ML models

Required skills

Large Language Models (LLMs) and foundation models, deep learning, machine learning, software engineering (server and client-side), mentoring, cross-functional communication

Preferred skills

Data science and analytics, iOS development ecosystem, localization and internationalization

Technologies

TensorFlow, PyTorch, CoreML, Java, C++, Objective-C, Swift, Python, Ruby, bash

Responsibilities

Design and build ML systems, improve model accuracy and speed, mentor engineers, collaborate with product managers and designers

Seniority

Senior, hands-on IC with leadership potential

Sourced via apple · Listed on CareerPlan, which tracks 854,000+ jobs from 20+ sources.