Klarna is a payments company headquartered in Sweden. Since being established in 2005 it has grown to handling $21 billion in online sales in 2017. Roughly 40% of all e-commerce sales in Sweden go through Klarna.
Klarna’s original differentiator was that it allowed users to checkout of e-commerce stores without entering in credit card information. Instead, the user enters an email address and registers with Klarna. This allows Klarna to assume the risk of the transaction, in place of the credit card company.
Klarna’s clever payment method became very popular, and 13 years later Klarna is a bank with a variety of financial services and payment methods. Marcus Granstrom is a director of engineering at Klarna. His work ranges from product development to systems architecture to management. His cross functional role has some similarity to Raylene Yung from Stripe, who is also an engineering director at a payments company, and was on the show yesterday.
Marcus walked me through the life of a payment hitting Klarna’s servers, and this served as a nice starting point for a conversation about Klarna’s infrastructure, their product, and their engineering practices.
Transcript provided by We Edit Podcasts. Software Engineering Daily listeners can go to weeditpodcasts.com/sed to get 20% off the first two months of audio editing and transcription services. Thanks to We Edit Podcasts for partnering with SE Daily. Please click here to view this show’s transcript.
Azure Container Service simplifies the deployment, management and operations of Kubernetes. Check out the Azure Container Service at aka.ms/sedaily.
Digital Ocean is the easiest cloud platform to run and scale your application. Try it out today and get a free $100 credit–go to do.co/sedaily. Digital Ocean is a complete cloud platform to help developers and teams save time when running and scaling their applications.
Rookout Rapid Production Debugging allows developers to track down issues in production without any additional coding, re-deployment or restarting the app. Insert Rookout ‘non-breaking breakpoints’ to immediately collect any piece of data from your live code and pipeline it anywhere — even if you never thought about it before or didn’t create instrumentation to collect it. Go to rookout.com/sedaily to start a free trial and see how much debugging time you can save.