Sr. Machine Learning Research Engineer, Siri Agent Modeling

Apple Inc

Cupertino, CA

JOB DETAILS
SKILLS
Apple, Apple Siri, Artificial Intelligence (AI), Cloud Computing, Computer Science, Cross-Functional, Deep Learning, Engineering, JAX (Java API for XML), Mac Operating System, Machine Learning, Modeling Languages, Natural Language Processing (NLP), Performance Tuning/Optimization, Problem Solving Skills, Product Shipments, Software Engineering, System Architecture, iOS
LOCATION
Cupertino, CA
POSTED
9 days ago

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 worlds 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. The frontier of AI isnt in the cloud anymore. Its in your pocket. The real challenge is building models that are not only powerful but also private, efficient, and intelligent enough to act as a true assistant on a users device.

At Apples Siri team, this isnt a research paper-its our daily work. We are building the next generation of LLMs and deploying them at the largest customer scale in the world. Were looking for engineers who thrive on solving the puzzles that exist at the bleeding edge of hardware, software, and machine learning.

This is a full-stack ML role for those who want to own their work from concept to silicon.

Your Playground:

  • Training & Fine-Tuning: Architect and train LLMs specifically for assistant behavior. This is your opportunity to define what "reasoning" and "task completion" mean for a billion users.
  • Performance & Optimization: Master the art of model surgery. Youll design and implement novel context and adapter strategies to make our models faster and smarter within the tight constraints of on-device deployment.
  • Data as a Product: You understand that world-class models are built on world-class data. You will own the curation, augmentation, and evaluation pipelines that are the lifeblood of our systems.
  • System Architecture: Your insights will shape not just the model, but the entire system. Youll work with cross-functional experts in software, research, and product to build a cohesive, intelligent experience.

Were a team that values velocity and pragmatism. We debate, we build, we measure, and we ship. If youre a builder with elite software engineering skills and a proven passion for pushing the boundaries of applied ML, your work will have a home here.

Ready to solve problems that will define the next decade of personal computing? Apply now.Experience with shipping LLM based products Excellent Agentic coding engineering skills and knowledge of deep learning frameworks (one of Pytorch, Jax, Tensorflow) Machine Learning Research track record or Excellent knowledge of Machine Learning State of the Art Masters or PhD in Computer Science, Machine Learning Engineering or equivalent professional experience Experience with Agentic AIKnowledge of Natural Language Processing Experience with Small Language Models

About the Company

A

Apple Inc

We bring amazing people together to make amazing things happen.

We’re a diverse collection of thinkers and doers, continually reimagining what’s possible to help us all do what we love in new ways. The people who work here have reinvented entire industries with the Mac, iPhone, iPad, and Apple Watch, as well as with services, including iTunes, the App Store, Apple Music, and Apple Pay. And the same passion for innovation that goes into our products also applies to our practices — strengthening our commitment to leave the world better than we found it.

About Apple

There’s a place here for every kind of brilliant. Everyone here is an innovator, or an innovator-to-be, no matter what your team or your role. So bring your passion, courage, and original thinking and get ready to share it, because every new product, service, or feature we invent is the result of people working together to make each others’ ideas stronger. Innovation at this level depends on people who represent the variety of the human experience and inspire us with their own fresh perspectives. Together, we’ll do amazing work that can make a difference in people’s lives. Including your own. Learn more about working at Apple.

COMPANY SIZE
10,000 employees or more
INDUSTRY
Computer/IT Services
FOUNDED
1976
WEBSITE
https://www.apple.com/jobs