Sr. Machine Learning Scientist, Siri Speech

Cupertino Until 9/21/2026 First posted July 23, 2026 Last posted July 23, 2026
Job description

Join the team redefining what a deeply personal and integrated assistant can be.  As part of the Siri organization, you will help shape one of the world's most widely used AI assistants, powered by our next-generation of Apple Intelligence, with capabilities like personal context understanding and on-screen awareness, built with privacy from the ground up. Your work will have direct, meaningful impact for users across iOS, iPadOS, macOS, watchOS, and visionOS. This is a rare opportunity to build at the intersection of cutting-edge AI and human-centered design, shipping technology that is centered around users and their needs.

Description

The Speech Team within the Siri organization drives major speech recognition, synthesis and speech to speech model changes for various features deeply embedded throughout Apple’s ecosystem. Our mission is to build cutting-edge infrastructure, datasets, and models that empower Siri conversational AI, dictation and various speech enabled Apple Intelligence features with powerful capabilities across natural language understanding, dialog generation, speech recognition, and multi-modal interaction. We apply these technologies to create engaging, intelligent, and personalized conversational experiences for millions of Apple users.

We believe that the most impactful breakthroughs in deep learning emerge when we address real-world problems at scale. We develop speech to speech experiences and the underlying multimodal foundation model technology for current and future speech-enabled features across Apple’s software, hardware, and services ecosystem. This allows for cutting edge applied research anchored in Apple specific production needs, while improving speech interaction experiences for Apple’s customers around the world.

Minimum Qualifications

Demonstrated expertise in deep learning with publication record in relevant conferences (e.g., NeurIPS, ICML, ICLR, CVPR, ICCV, ECCV, KDD, ACL, ICASSP, InterSpeech) or a track record in applying deep learning techniques to products
Proficient programming skills in Python and one of the deep learning toolkits such as PyTorch, JAX, or Tensorflow

Preferred Qualifications

Bachelor's, Master's, or PhD in Computer Science or other related disclipline
Experience with conversational AI or multimodal LLM
Experience with large scale machine learning training/evaluation
Data-centric vision about foundation model

About this role

Summary

Develop speech and language models for Siri, focusing on natural language understanding and multimodal AI.

Job title

Sr. Machine Learning Scientist, Siri Speech

Experience level

null

Industry

software

Location requirements

Must be based in Cupertino, no remote work mentioned.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

deep learningpythonPyTorchJAXTensorFlow

Preferred skills

conversational AImultimodal LLMlarge scale machine learningfoundation model

Specializations

deep learningnatural language understandingspeech recognitionmultimodal interaction
Locations

Structured locations inferred from the posting.

Cupertino, CA, USA

On-site City