Leem Nassery

Leemay Nassery is an engineering leader specializing in experimentation and personalization. With a notable track record that includes evolving Spotify's A/B testing strategy for the Homepage, launching Comcast's For You page, and establishing data warehousing teams at Etsy, she firmly believes that the key to innovation at any company is the ability to experiment effectively.

books by Leem Nassery

AI Model Evaluation

  • MEAP began August 2025
  • Last updated May 2026
  • Publication in Fall 2026 (estimated)
  • ISBN 9781633435674
  • 250 pages (estimated)
  • printed in black & white

AI Model Evaluation teaches you how to effectively evaluate and assess machine learning models for better scaling and integration into production systems. Each chapter tackles a different evaluation method. You'll start with offline evaluations, then move into live A/B tests, shadow traffic deployments, qualitative evaluations, and LLM-based feedback loops. You’ll learn how to evaluate both model behavior and engineering system performance, with a hands-on example grounded in a movie recommendation engine.