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Cresta

Real-Time Intelligence for Contact Centers

Senior Machine Learning Engineer

Machine Learning EngineerMachine Learning EngineerFull TimeRemoteSeniorTeam 51-200H1B SponsorCompany SiteLinkedIn

Location

Germany

Posted

95 days ago

Salary

0

Seniority

Senior

Postgraduate Degree5 yrs expEnglishPyTorchTensorFlow

Job Description

Senior Machine Learning Engineer

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

  • Compensation for this position includes a base salary, equity, and a variety of benefits.
  • Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable.

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