I have two use cases. I work mostly by developing e-commerce sites for companies and the first use case is to develop the infrastructure, the hosting solution for those e-commerce platforms. This is done mostly in Magento, WordPress, Drupal, and other open-source platforms.
We also have our own solution, which we host in Linode. It is a software as a service platform that connects Mercado Libre with Zendesk, which are two separate companies, and we join them through middleware.