H&M uses machine learning for various use cases including logistics, production, sales, marketing, and design/buying. MLOps principles like model versioning, reproducibility, scalability, and automated training are applied to manage the machine learning lifecycle. The technical stack includes Kubernetes, Docker, Azure Databricks for interactive development, Airflow for automated training, and Seldon for model serving. The goal is to apply MLOps at scale for various prediction scenarios through a continuous integration/continuous delivery pipeline.