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Cresta

Real-Time Intelligence for Contact Centers

Senior Machine Learning Engineer – Automatic Speech Recognition, ASR

Machine Learning EngineerMachine Learning EngineerOtherRemoteSeniorTeam 51-200H1B SponsorCompany SiteLinkedIn

Location

United States

Posted

139 days ago

Salary

$205K - $270K / year

Seniority

Senior

Postgraduate Degree5 yrs expEnglishPyTorchTensorFlow

Job Description

Senior Machine Learning Engineer – Automatic Speech Recognition, ASR

Cresta

• Design, implement, and maintain evaluation frameworks to measure model accuracy, robustness, latency, and real-world performance across ASR and NLP systems. • Lead ASR quality improvement efforts, including error analysis, dataset curation, metric definition (e.g., WER and task-specific metrics), and model iteration. • Analyze large-scale speech and text data to identify failure modes and drive targeted model and data improvements. • Develop, train, and deploy machine learning models for speech recognition and downstream tasks such as classification, entity recognition, information extraction, and structured insight generation. • Partner with applied research to translate experimental improvements into production-ready systems. • Collaborate with product managers, platform engineers, and UX teams to align model quality metrics with customer and business goals. • Optimize ML pipelines and evaluation workflows to operate efficiently and reliably at scale. • Establish best practices for model validation, offline/online evaluation, and continuous quality monitoring in production.

Job Requirements

  • Master’s or Ph.D. in Computer Science, Machine Learning, AI, or a related field.
  • 5+ years of hands-on experience building, evaluating, and deploying ML models in production.
  • Strong background in speech recognition (ASR), speech processing, or closely related domains.
  • Deep experience with model evaluation, benchmarking, and error analysis for ML systems.
  • Proficiency with ML frameworks and libraries (e.g., PyTorch, TensorFlow, Hugging Face).
  • Solid understanding of modern ML techniques, including transformer-based models and large-scale training.
  • Experience building data pipelines and tooling for large-scale experimentation and quality analysis.
  • Strong passion for improving real-world AI system quality, with a track record of delivering measurable, production-grade improvements.

Benefits

  • Comprehensive medical, dental, and vision coverage with plans to fit you and your family
  • Flexible PTO to take the time you need, when you need it
  • Paid parental leave for all new parents welcoming a new child
  • Retirement savings plan to help you plan for the future
  • Remote work setup budget to help you create a productive home office
  • Monthly wellness and communication stipend to keep you connected and balanced
  • In-office meal program and commuter benefits provided for onsite employees

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