Alexander Ernst: "After HPI, I started my professional life at Netlight - a company that nobody at HPI knew at the time in summer 2017. I managed three different projects in my 3.5 years. I was at Akelius (real estate company) to develop an internal platform for the brokers, at mobile.de to help car buyers finance their car and finally at Klarna. There I worked on developing Klarna's first bank account and bringing it live. I've now been employed at Klarna since May 2021, and since October I've been Team Lead for a new team working on payments on campus. In the Tech Talk, I show how we wrote a rules-engine at Klarna to process standing orders and scheduled transfers. And how we took our solution from an MVP to a robust and scalable solution."