Merchants: our primary bread-and-butter is serving online retailers. Ironically, I built a "shopping cart" when I was fifteen. It transacted over a half-million. It was, by no means, the bastion of excellence, but for a 15-year-old, I have to say that I'm still proud of such an accomplishment.
I started in Magento (now Adobe Commerce) in 2011. It was a pre-built "shopping cart" that already did everything needed to transact. For obvious reasons, I have yet to look back. We've led exciting projects where we have discovered solutions to complex challenges. Grandstand was a recent example where we took a completely failed project, rebuilt it according to their business needs, and released it into production.