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Cartesia

Posted 28 Aug 2026

Research Engineer

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Employment
Full time
Team
Data Science & Analytics
Posted
28 Aug 2026

About the role

Responsibilities:

  • Design and build large-scale datasets for model training, and run controlled modeling experiments to measure their impact on model performance and behavior.
  • Build evaluations of speech models, both via manual annotation and at scale with automated metrics.
  • Implement techniques for steering data generation to improve model intelligence through data and mitigate bias.
  • Build automated quality control systems to validate and filter generated data.
  • Partner with product teams to ensure support for key languages and markets.


Requirements:

  • Experience building or working with large multilingual datasets.
  • Experience with generative models (speech, text, or multimodal).
  • Ability to help guide human annotation and evaluation across multiple languages.
  • Strong applied ML background with a focus on data-centric approaches.
  • Excitement for building scalable systems that bridge research and production.

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