Here is a compiled list of technical journey of different companies in applying and scaling up their machine learning systems.
Google: Best Practices for Machine Learning
ByteDance: How Tik-Tok Wins The Social Media Recommendation System War (transcription)
NerdWallet: How NerdWallet Dialed Machine Leraning Up to 11
AI Dungeon: How we scaled AI Dungeon 2 to support over 1,000,000 users
How Trigo built a scalable AI development & deployment pipeline for Frictionless Retail