On February 23rd, 2023, E-commerce Berlin Expo is taking place. This event gave us the opportunity to meet and exchange with E-commerce solutions from all over the world. In this context, I had the opportunity to exchange with Elias Samuel Klemm, Sr. Software Engineer at SumUp: Can you introduce yourself and your background? Elias is a Sr. Software Engineer at SumUp. He worked in Startups for many years and is currently helping the checkout team to sell a wide range…