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In 2019 I wrote about a MySQL 5.7 migration at Check24. While it is very exciting when working on new features, it is also a good thing to think about the architecture and use modern frameworks and libraries. Working on the architecture provides also the opportunity to improve source code quality and introduce quick wins. … read more …
In this post, I want to address scalable system design and how to grow a system while it’s user base grows. Because talking only about the theory can become boring very quickly, I want to discuss this topic on a practical example. Before I start with the design itself, keep in mind that there is … read more …
During the Covid-19 pandemic I decided to set up a server at home for different use cases. The server, that I very creatively called server1, should be a central place to build a file archive, a git server (an alternative for GitHub projects not intended for the web), a testing server for new applications (such … read more …
This blog post is about Computer Science and my Computer Science Skills and my current skills in it. While I started to work on side projects (such as PHPAlgorithms, Keestash or Unread News), I have neglected my theoretical knowledge (and the practice following the theory). I want to brush them up a little and utilize … read more …
One thing I like at my current employer Check24 is the variety in topics – such as working on databases like MySQL 5.7 – and the trust in me to master them. This motivates me to take my work very serious, but also gives me a lot of responsibility since our products represent Germany’s biggest … read more …
Last year, I announced PHPAlgorithms. Since then, I worked a lot on this repository as part of my personal learning progress on Algorithms and Datastructures. Now, I am proud to announce that we have reached our first milestone – version 1.0.0. With the support of the community, we fixed remaining issues and made this release … read more …
The beginning of this week was a little bit more action packed than planned. After a couple of weeks of coding and intensive testing (seriously!), a colleague and me were of the opinion that the feature is production ready and could be deployed. But well, shit happens when you least expect it. We faced PHP … read more …
Algorithms fascinate me again and again. They seem to be very hard to understand, but once you have practiced enough, you will recognize common patterns. Once you reach the state where you see a problem and can imagine a solution, it seems like that you just adjust the previous algorithm used. Saying this, I am … read more …
One of my partners asked me for support on his personal website. He is not a pro user, meaning that he created a simple website a couple of years ago and relies on support of his hoster. Stuff like responsive design and SEO (what is this?) does not matter and he just wants to publish … read more …
The last few days, I was busy getting started with Vagrant. Vagrant is a nice tool to create a development environment to ‘just start’ developing. New team members, for instance, do not need to set up, but can simply run ‘vagrant up’ to have a fully configured, ready-to-start environment. Personally, in my case, it is … read more …