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Data Scientist 432 views

Description

The Alexa Wakeword team is responsible for delivering the speech models, runtime engine and cloud-based services that provide hands-free invocation of Alexa enabled devices. Accurately measuring model performance is a linchpin for continued progresses in this area. The team is seeking a Data Scientist with exceptional analytic abilities who will work with a team of Scientists and SDEs to drive the measurement and analysis of Wakeword model performance.

Key Responsibilities Include

  • Define performance metrics and automate metrics reporting
  • Work with stakeholders to ensure the quality and availability of data used for performance measurement
  • Develop compelling and easy to understand visualizations for internal customers at all levels
  • Apply statistical methods to understand when model performance deviates from expected levels and drive automated alerts
  • Deep dive to understand patterns and anomalies in performance metrics
  • Conduct experiments and analysis to determine whether candidate wakeword models are ready for promotion to production

Basic Qualifications

  • Bachelor’s degree in Statistics, Applied Math, Operations Research, Economics, Engineering or a related quantitative field with three years of working experience as a Data Scientist
  • Experience in SQL, R, Python, or another scripting language
  • Ability to write SQL scripts for analysis and reporting
  • Track record of diving into data to discover hidden patterns and of conducting error/deviation analysis.
  • Experience applying various machine learning techniques, and understanding the key parameters that affect their performance
  • Understanding of relevant statistical measures such as confidence intervals, significance of error measurements, development and evaluation data sets, etc.
  • Excellent written and verbal communication skills for both technical and non-technical audiences.
  • Strong troubleshooting and problem-solving skills

Preferred Qualifications

  • Master’s degree in Statistics, Applied Math, Operations Research, Economics, Engineering or a related quantitative field
  • 5+ years of experience in data science
  • Ability to develop experimental and analytic plans for data modeling processes, use of strong baselines, ability to accurately determine cause and effect relations
  • Experience in creating data driven visualizations to describe an end-to-end system
  • Proficiency with Tableau, QuickSight or other web based interfaces to create graphic-rich customizable plots, charts data maps, etc.
  • Proven ability to work effectively in a cross-functional, fast paced environment
  • Previous experience in a ML or data scientist role with a large technology company.
  • Experience with AWS features (S3, Redshift, Athena, RDS, EMR)

Amazon is an Equal Opportunity Employer – Minority / Women / Disability / Veteran / Gender Identity / Sexual Orientation / Age.

Company – Amazon.com Services, Inc.
Job ID: A896070

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