Join us for a captivating talk on the journey of scaling ads ranking at Pinterest using innovative machine learning technologies and platforms. This presentation will showcase the transition from traditional logistic regressions to deep learning-based transformer models, incorporating sequential signals, multi-task learning, transfer learning, and GPU serving. Throughout the process, we encountered various challenges and gained valuable lessons. Discover the hurdles we overcame and the insights we gained in this talk, as we share the transformation of ads ranking at Pinterest and the lessons learned along the way.