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Machine Learning Language Engineer - Siri

Apple

$139,500 - $258,100
Oct 30, 2025
Seattle, WA, US
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The Siri NL team at Apple is looking to solve the problem of redefining how hundreds of millions of people use their computers and mobile devices in their day-to-day tasks by creating groundbreaking technology for machine learning, natural language understanding, and artificial intelligence.

Requirements

  • Experience with Python, Swift, C++, or other equivalent programming languages and AI-assisted programming.
  • Experience with data-driven decision making.
  • Experience with statistics and data science, including database queries.
  • Background in computational linguistics, data science, or technical product management.
  • Familiarity with lexical semantics.
  • Experience working with data annotation and creating ontologies and taxonomies.
  • Experience with machine learning and product engineering teams, data science teams, annotation teams, and designers.

Responsibilities

  • Develop ontologies, models, and standards to define and organize Siri's understanding.
  • Create, validate, and review requests for ontology changes.
  • Develop data strategies for training and evaluating models including human-authored/annotated data and synthetic data.
  • Own requirements related to ontology tools, metrics, and process improvements.
  • Work with cross-functional teams to gather requirements across components and negotiate inter-team constraints.

Other

  • Bachelors degree or higher in Computer Science, Linguistics, or science / mathematics degrees.
  • Minimum 3 years experience of product development.
  • A curiosity about natural language understanding and its associated complex problems.
  • Enthusiasm working on a diverse set of hard problems in a fast-moving product development environment.
  • Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services.