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# Machine Learning Engineer, Siri Speech

- **Company:** Apple Inc.
- **Location:** Cupertino, CA, United States
- **Experience:** Starter
- **Salary:** $129,300.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Computer Programming, Python (Programming Language), Machine Learning, Tensorflow, Reinforcement Learning, Pytorch, Large Language Models, Siri, Agentic-AI, Build Management, Information Technology
- **Published:** November 4, 2026
- **Apply:** https://www.jobmonkeyjobs.com/career/28158199/Machine-Learning-Engineer-Siri-Speech-California-Cupertino-7413

## About the Role

Experience in developing, training/tuning large generative models or LLMs

Experience with machine learning frameworks such as JAX and/or PyTorch

Proficient programming skills in Python

Strong problem-solving skills and ability to work independently as well as in a team environment.

Excellent written and verbal communication skills.

Preferred Qualifications

M.S. in Electrical Engineering, Computer Science or related fields

1-2+ years experience in Machine Learning

Experience in reinforcement learning

Experience with Speech LLMs or other Multimodal LLMs

Experience with building & deploying AI agents and LLMs

Experience with large scale machine learning training/evaluation

Data-centric vision and hands-on experience in developing and scaling foundation models

## Description

We are looking for a talented ML Research Engineer who is excited to work on SiriAI, which is used by millions of users across variety of Apple devices. Our Engineers are creative, inspired, innovative, energetic, self motivated people who love making and shipping products. Are you one of us? You will be responsible for improving multimodal algorithms that decide if a user is interacting with Siri or not. These algorithms include speaker recognition techniques. To succeed in this role, you must be a strong collaborator, and a creative problem solver who thrives in a fast-paced environment, working across teams and organizations.

Responsibilities

Develop and build multilingual, multimodal LLMs to improve speech and conversational experiences for Apple customers worldwide.

Advance the state of the art in multimodal modeling.

Design and build robust speech-centric LLM systems that enable next-generation conversational assistant features across Apple platforms.

Collaborate closely with cross-functional partners in research, engineering, design, and production to deliver scalable, high-quality ML products.

Stay current with emerging research and industry trends, and help define the future direction of AI-powered Siri experiences