Stoyan Stefanov

Stoyan Stefanov

Los Angeles, California

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Stoyan Stefanov is a Facebook engineer (a former Yahoo!) and an author, contributor, and tech reviewer of various O'Reilly books. He speaks regularly about web development topics at conferences and on his blog at Stoyan is the creator of the image optimization tool, YUI contributor and architect of Yahoo's performance optimization tool YSlow 2.0.

Areas of Expertise:

  • web performance
  • WPO
  • javascript
  • images
  • speed
  • optimization
  • React
  • consulting
  • speaking
  • training
  • writing