> Markdown version of [/@marco-emrich](https://www.wearedevelopers.com/@marco-emrich). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Marco Emrich Software crafter at codecentric building better test suites through mutation testing. ## About Marco Emrich builds robust software systems as a consultant and crafter at codecentric. He focuses on practical software craftsmanship, authoring several programming books and regularly sharing his approaches at tech conferences. Much of his recent work challenges the idea that standard unit tests are enough. He advocates for using mutation testing tools like Stryker to prove whether a test suite can actually catch bugs, rather than just hitting a coverage metric. Based in Nuremberg, he organizes the local Softwerkskammer developer meetup. When he isn't running events, he is likely teaching his son how to program robotic turtles. ## Past Sessions ### World Congress 2024 · July 17, 2024 Berlin, Germany - [Mutation Testing with Stryker](https://www.wearedevelopers.com/events/world-congress-2024/sessions/437-mutation-testing) · 30 min