← All roles

Machine Learning Engineer, Answers Knowledge and Information - Proactive

Apple· Machine Learning and AI
Apply on company site
Cupertino, CA$150.4k - $277.6kfull-timePosted 3d ago

About the role

Role focused on large-scale ML and deep learning research and development to improve Open Domain Question Answering and Summarization, leveraging structured knowledge graphs and unstructured web data, with emphasis on domain-specific LLMs for Apple’s AI-powered products and production-ready technologies.

Responsibilities

  • Conduct research and development on state-of-the-art deep learning and large language models for various tasks and applications in Apple’s AI-powered products
  • Developing, fine-tuning, and evaluating domain-specific Large Language Models for various NLP tasks including summarization, question answering, search relevance/ranking, entity linking and query understanding problems
  • Conducting applied research to transfer the cutting edge research in generative AI to production ready technologies
  • Understanding product requirements, translate them into modeling tasks and engineering tasks
  • Stay up to date with the latest advancements and research in deep learning and large language models
  • Experience in modeling user behavior including personalization, online learning and recommendation systems
  • Experience working with machine learning or LLM model development for various NLP tasks and RAG applications including prompt engineering, training data collection and generation, model fine-tuning and model evaluation
  • Experience working with Python and at least one of the deep learning frameworks such as TensorFlow, PyTorch, or JAX

Qualifications

  • PhD in Computer Science, Artificial Intelligence, Machine Learning, or a related field.
  • At least 2 years of experience in various state-of-the-art techniques related to LLM fine-tuning in 1 or more of the following areas -- Supervised Fine-tuning (SFT) with Rejection Sampling, Preference-based fine-tuning techniques (e.g RLHF, Reward model, DPO, PPO, GRPO etc.), Parameter efficient fine-tuning techniques (e.g LoRA), Hallucination reduction and factual accuracy improvements, Designing and implementing safety guardrails
  • Consistent track record of researching, inventing and/or shipping advanced machine learning models
  • Outstanding communication and interpersonal skills with ability to work with cross-functional teams

Skills

Required:PythonDeep learning frameworks

Benefits

  • Comprehensive medical and dental coverage
  • retirement benefits
  • discounted products and free services
  • reimbursement for certain educational expenses — including tuition
  • discretionary bonuses or commission payments as well as relocation (potential)
  • employee stock programs and eligibility for stock purchase plan
Last updated Oct 23, 2026. Interested? Apply on the company site.

About Apple

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

AirPods Max 2Apple ArcadeApple CardApple Fitness+Apple MusicApple TVApple TV+Apple Watch Series 11
Company profileWebsite

More open roles at Apple