LLM Machine Learning Engineer, Models and Agent Science, AIML

Cupertino, California, United States$184,700 - $324,8005+ years

The Apple Intelligence Agents, Infrastructure, and Research team brings innovative AI research into Apple products, with a focus on optimizing, interpreting, and developing new algorithms for on-device and server-based Apple Foundation Models and Apple Intelligence features.

We are looking for talented Machine Learning Applied Scientists and Research Engineers to build groundbreaking machine learning capabilities and drive emerging innovations. You will join a collaborative team of software developers and deep learning experts focused on large language modeling, optimization, interpretability, and related algorithms. In this role, you will drive applied innovation and evaluate emerging research for real-world viability, translating promising ideas into the Apple product context. You'll bridge the gap between cutting-edge ideas and the constraints of shipping AI at scale. Successful candidates will bring a strong software engineering background, hands-on zero-to-one machine learning development experience, and broad expertise in post-training machine learning models (including quality and performance optimization).

Proven ability to define goals and deliver results amid uncertainty and real-world constraints in AI product development
Ability to read, evaluate, and reproduce recent research and assess its practical viability under real-world constraints
Experience optimizing or post-training large language models (LLMs), developing interpretability or stress-testing algorithms, steering model behavior, or building agent harnesses
Strong Python and UNIX skills and a demonstrated ability to use agentic coding tools in these environments
History of applied research in neural network optimization, model training, or a related area
Proven track record of driving scientific investigations and experiments while overcoming obstacles and uncertainty in a research environment
BS and 5+ years of experience, MS and 3+ years of experience, or PhD and 1+ year of experience

PhD in a related field
Publication record at top AI/ML venues
Experience with post-training LLMs and network optimization algorithms, as well as interpretability or steering techniques for LLMs
Experience of working with large-scale compute infrastructure
Experience shipping a real world product, project or feature
Experimental rigor and ablation design when benchmarking LLM optimizations
Strong communication and accountability skills, with a collaborative mindset and strong work ethic

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $184,700 and $324,800, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant

At Apple, we believe accessibility is a fundamental human right. You’ll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong.

Learn about accessibility in Apple’s workplace

Learn about reasonable accommodations for job applicants

Apple accepts applications to this posting on an ongoing basis.

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