Web applications usually start small and loveable, but gradually become larger and larger as more people work on them and front-end technologies move on. If you’re not careful they can potentially end up as the one thing no-one wants...
SWAPs: From monolith to small web applicationsAccording to figures from Ingenico, around 15% of site visitors in the Netherlands that begin the payment process do not complete their transaction. This can have many causes which will be examined later in this article. So why...
Your leaky online payment process“My past year as a software engineer at bol. com has mostly been dedicated to breaking down one of the big monoliths within our software landscape into smaller services. To be more specific: I’ve been working in a team to extract the processes related to customer returns into a separate microservice.
Video: Insights- Building a Boomerang that doesn’t come back (to haunt you) at Spaces SummitIT infrastructure transitions can be hard. Obviously there are technical challenges to overcome. But what do you do when internal disagreement about the way forward leads to a halt in innovation? Recently I gave a talk about exactly this topic at the Software Circus conference.
Software Circus Interview - The move to the public cloudDuring the GoTo Amsterdam conference this year, I did a talk on "Resilience Engineering in a Microservice Landscape". About the talk In this talk I show how we at bol. com achieve fault tolerance across our application landscape.
Video: My resilience GoTo presentationServices: automated business processes in small systems, connected through API’s. What started out as a means of technical scalability turned out to be the most important driver of team autonomy – and vice versa. This is our story of Backspin, Rabbits and the Man on the Moon.
Services & Autonomy: the one can’t live without the otherIn this posts, we’ll show you how we use the CQRS “web scale” pattern to achieve scalability and flexibility in our back office software. This is needed as we rely heavily on our back office to offer our customers the...
How CQRS got our web scale groove backHow do you get the IT management board to serve you coffee on a golden platter? You have to do something good of course, exceptional in fact. In order to tell you how we became top performer instead of database killer by creative use of a cache, we will have to take you back to December 2015, when it all started. December.
From database killer to top performer!How can you make sure images don't slow down your page load performance? All it took us was some unconventional thinking: seti@bol. com. Images We use a lot of images at bol.
From a crazy hackathon idea to an empty queueAt bol. com we service millions of products to millions of customers, resulting in billions of pages each year. We want to create the most effective service to our visitors we possibly can.
Big, bigger, scalable