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Senior Machine Learning Engineer (Voice Assistant) | Hybrid

Roku Boston, MA Yesterday
Machine Learning Python Model Evaluation

About the Role

Roku’s Voice team builds voice experiences that help people interact with their TVs naturally and reliably. As a Senior Machine Learning Engineer, you’ll help design and improve machine learning solutions that power our voice assistant capabilities at scale.

Responsibilities

  • Develop and optimize machine learning models for voice assistant features
  • Collaborate with engineers and product partners to translate requirements into technical solutions
  • Improve model performance through experimentation, evaluation, and iterative refinement
  • Contribute to production readiness, including monitoring and reliability improvements
  • Partner with cross-functional teams to support data, tooling, and deployment workflows

Requirements

  • Strong experience in machine learning with a focus on applied model development
  • Proficiency with common ML frameworks and Python-based tooling
  • Experience evaluating model quality using metrics and offline/online testing approaches
  • Ability to work effectively in a collaborative, fast-moving engineering environment

Benefits

  • Opportunity to impact a leading streaming platform used by millions
  • Work with a team that values ownership, collaboration, and continuous improvement
  • Meaningful growth in a public-company environment
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Posted on July 12, 2026
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