Apple

Apple

Posted via Apple Careers

AIML - Staff Machine Learning Engineer, Answers, Knowledge & Information (AKI)

Always Hiring

Posted Aug 4, 2026

Role at a glance

Salary
$184.7K – $324.8K/yr
Location
Santa Clara, California, United States
Work arrangement
On-site
Employment
Full-time
Experience
8+ years industry experience in Machine Learning, NLP and applying these techniques at scale
Education
Bachelors in Computer Science

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Role Summary

AI-generated

The Siri and Information Intelligence team develops machine learning, search, and NLP technologies for information experiences across Apple products. This role focuses on building and improving LLM and NLP models for Personal Q&A, enabling Siri to answer questions using users’ personal documents while keeping privacy at the forefront.

What You'll Do

  • Research, design, implement, and evaluate models for Personal Q&A quality and performance.
  • Implement and extend LLM models with fine-tuning and RLXF methodologies, and develop supporting data pipelines.
  • Establish target quality metrics and evaluation sets, and design experiments to test hypotheses.
  • Collaborate with partner teams to define product requirements and priorities for the Personal Q&A stack.
  • Develop the long-term technical vision for Personal Q&A quality and integrate solutions into a larger roadmap.

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Strong software engineering skills in mainstream programming languages, such as: Python, Go, C/C++; Experience using ML frameworks (pyTorch, JAX, TensorFlow, XGBoost etc.); Strong communication skills

Required

  • Strong software engineering skills in mainstream programming languages, such as: Python, Go, C/C++
  • Experience using ML frameworks (pyTorch, JAX, TensorFlow, XGBoost etc.)
  • Strong communication skills

Preferred

  • In-depth knowledge and expertise in training, evaluating, and applying Deep learning models, Large Language Models for production systems
  • Extensive experience in building production ML systems and applications in search, recommendation systems, or information retrieval
  • Ability to quickly prototype ideas / solutions, and perform critical analysis
  • Background in: search relevance and ranking, Q&A, personalization, user behavior/response modeling, or data-driven decision-making
  • Advanced degree (Master’s or Ph.D.) in Computer Science, Statistics, or related field, or equivalent industry work experience

Original job description

Content provided by the employer

Summary

The Siri and Information Intelligence team is revolutionizing the way hundreds of millions of people access information on their devices, all while keeping user privacy at the forefront. As an Applied ML team, we're pushing the boundaries of Apple Intelligence, result ranking, and innovative search technologies, all while running a low latency production service. Our work fuels intuitive information experiences across some of Apple's most iconic products, including Siri, Spotlight, Safari, Messages, Lookup, and more. Join us in shaping the future of how the world connects with information!

We are looking for a senior Machine Learning Engineer with a passion for using machine learning to build intelligent search applications. Our team researches and implements novel query understanding, ranking and response generation techniques, machine learning algorithms and models that power amazing Search experiences across Apple products.

Description

In this role you will have the opportunity to develop LLMs and other NLP models for user productivity and improving Siri's ability to answer personal domain questions. Our team owns models which are responsible for answering users' questions using their personal documents with privacy at the forefront, and that integrates with other Siri capabilities to enable powerful user experiences. Role responsibilities include:

- Contribute to research, design, implementation, and evaluation of models to enhance quality and performance, and to support key functions for Personal Q&A.
- Implement and extend LLM models with fine-tuning and RLXF methodologies. Develop high quality data pipelines to support these methodologies.
- Establish target quality metrics and evaluation sets for the team to track and improve. Design novel experiments to validate/refute hypotheses and support team wide decision making.
- Collaborate with partner teams to define product requirements and priorities, and to explore opportunities for enhancements to the Personal Q&A stack.
- Develop long-term technical vision for Personal Q&A quality; identify problem areas and integrate solutions as part of a larger roadmap.

Minimum Qualifications

8+ years industry experience in Machine Learning, NLP and applying these techniques at scale
Strong software engineering skills in mainstream programming languages, such as: Python, Go, C/C++
Experience using ML frameworks (pyTorch, JAX, TensorFlow, XGBoost etc.)
Strong communication skills
Bachelors in Computer Science

Preferred Qualifications

In-depth knowledge and expertise in training, evaluating, and applying Deep learning models, Large Language Models for production systems
Extensive experience in building production ML systems and applications in search, recommendation systems, or information retrieval
Ability to quickly prototype ideas / solutions, and perform critical analysis
Background in: search relevance and ranking, Q&A, personalization, user behavior/response modeling, or data-driven decision-making
Advanced degree (Master’s or Ph.D.) in Computer Science, Statistics, or related field, or equivalent industry work experience

Pay & Benefits — Santa Clara, California, United States

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.

Application Deadline

Apple accepts applications to this posting on an ongoing basis.

Apple

About the company

Apple

Large Enterprise

Apple Inc. is a global technology company known for its innovative products and services, including the iPhone, iPad, Mac computers, and Apple Watch. Founded in 1976, Apple has continuously pushed the boundaries of design and functionality, earning a reputation for high-quality consumer electronics and software solutions like iOS and macOS. With a strong commitment to user experience and privacy, Apple also leads in digital services, offering platforms such as the App Store, Apple Music, and iCloud. The company's focus on sustainability and corporate responsibility further enhances its standing as a leader in the technology sector.