Rafael T.

Machine Learning Engineer
  • Rio de Janeiro, Brazil
  • Member Since, Sep 16, 2019
Hire Rafael T.
  • Industry Tech
  • Big Data Tools Spark
  • Specialties NLPComputer Vision

Candidte Description

Rafael is a Data Scientist and Machine Learning engineer with over 6 years experience. His areas of expertise include Computer Vision, Speech Recognition and Data Analysis.


  • University of Amazon State 2006 - 2012

    BSc in Mechatronics Engineering


  • 2019 - Present

    Freelance Data Scientist

    - Implemented a service to create Language Model to detect user emotion from tweets.

    - Created a model to detect a user based on the browser session.

  • Knewin 2019 - 2019

    Data Science Consultant

    - Created models to detect news in audio content of radio stations. Results: 99% recall and <10% false positive rate.

  • Khomp - Enabling Technology 2016 - 2019

    Data Scientist

    - Created a service to distinguish a human's voice from a machine's with 98% accuracy.

    - Created a Biometric Voice System to identify/recognize speaker.

    - Created service to detect speaker emotion.

    - Created an API in Azure that enables clients to train customer models.

    Implemented CI/CD to the Gitlab projects.

  • Neoway Business Solutions 2014 - 2016

    Data Scientist

    - Implemented Captchas solutions using Image PreProcessing and SVM.

    - Implemented Captchas solutions using CNNs.

    - Speculated inputs or numerical registers to crawl internet public sources.

    - Analyzed internal data to check services' performances.

Rafael T. is now available for hire