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Machine Learning Engineer - AI, Search & Knowledge Platform

Apple· Answers & Knowledge & Information
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Hybrid (Beijing, China), Hybrid (Shanghai, China)Full-timePosted 3w ago

About the role

Machine Learning Engineer focusing on large-scale ML/NLP for Siri search, query understanding and ranking. Build infrastructures, run experiments, and leverage petabytes of data to improve product outcomes across Siri, Spotlight, and Safari.

Responsibilities

  • - Design and build infrastructures to support features that empower billions of Siri, Spotlight, and Safari users.
  • - Perform language processing, statistical analysis, and user intent analysis to support hypotheses for improving product outcomes.
  • - Leverage proprietary parallel data processing platform to process web-scale data for product features and improvements.
  • - Design and run/deploy metrics and evaluations of features/improvements using tools like grading, logs processing, pre-launch and holdback A/B tests.
  • - Present results of analysis to team and leadership across Apple.

Qualifications

  • - Bachelor’s degree or above in Computer Science, Mathematics, Statistics, or related technical field, or equivalent proven experience.
  • - 5+ years of experience in machine learning, retrieval and ranking for search, recommendation, or ads systems.
  • - Mastery of two of following languages: Python, Go, Java, C++
  • - Excellent knowledge and good practical skills in major machine learning algorithms
  • - Hands-on experience in RAG, including developing, evaluating and enhancing for both retrievers and generative LLMs.
  • - Excellent data analytical skills
  • - Good interpersonal skills and great team player
  • - Strong written and verbal communication skills

Skills

Required:PythonMachine LearningRAG (Retrieval-Augmented Generation)
Nice to have:GoJavaC++
Last updated Oct 2, 2026. Interested? Apply on the company site.

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