At bol.com we host a hackathon day every so many months. Developers get to pitch their hackathon idea, so that other developers can join and help them. Sander was curious about other ORM frameworks available for Kotlin. And so, the idea to look for alternatives of Hibernate in Kotlin as a hackathon project came up.
Bye Bye Hibernate – Discovering alternatives to Hibernate in KotlinAt bol.com we believe Site Reliability Engineering (SRE) is the best way to balance product innovation and reliability. In essence it’s a particular set of standards, tools and practices that govern how you balance Dev and Ops in a DevOps software engineering team. But when should SRE teams be happy?
When is our SRE team successful?In this blog post, we will share how we reduced the processing time of our streaming application running on dataflow named XCATS.
Boosting Dataflow Efficiency: How We Reduced Processing Time from 1 Day to 30 Minutes in DataflowThe garbage collector is a complex piece of machinery that can be difficult to tune. Not surprisingly, many developers dread touching the GC. If you don’t give the GC just a little bit of care, your whole application might be running suboptimal. This blog post shows how we got two production applications to perform better by following simple tuning steps.
Spicing up your app’s performance - a simple recipe for GC tuningCoroutines are a wonderful way of writing asynchronous, non-blocking code in Kotlin. Think of them as lightweight threads, because that’s exactly what they are. Lightweight threads aim to reduce context switching, a relatively expensive operation. Moreover, you can easily suspend and cancel them anytime. Sounds great, right?
Coroutine Gotchas - Bridging the Gap between Coroutine and Non-Coroutine WorldsBringing our warehouse and logistics operations to the Utrecht bol.com campus by Google Glass.
Google Glass at bol.com: A different way of looking at TechnologyAt bol.com we like our teams to be autonomous when it comes to implementing solutions to help our customers. However if people are completely free to do whatever they want to reach a team goal we might end up in the bottom right corner of the picture due to lack of direction. We like to be in the upper right corner where there’s both freedom and alignment. The other parts of the diagram are of course less desirable for our software engineers and data scientists.
Tech vision at bol.comThe COVID-19 pandemic has affected millions of people around the world and in very different ways. While governments and health organisations seek to find solutions to this global humanitarian crisis, online retailers have been put to the test of how well they can serve their customers’ needs during these challenging times. Being part of bol.com’s Forecasting Team brought these challenges closer to home, and not only because of the working from home situation.
Forecasting demand at bol.com during the COVID-19 pandemicIf you’re performing web requests with Spring Boot’s WebClient you perhaps, just like us, read that defining the URL of your request should be done using a URI builder
Avoiding memory leaks with Spring Boot WebClientIn a series of videos, we would like to showcase how Data Science is helping us at bol, our partners, and our customers. Hear the way the DS craft is utilized within the company in various parts of the company by the corresponding product teams/owner themselves! They know best the impact and the improvements of incorporating the discipline in their own products.
Data Science at bol.com - video series
