Johannes Stern

Johannes Stern builds software with a focus on clean code and tests that teams can actually maintain. He holds a PhD in computer science and has worked on everything from hard real-time systems to modern frontends.

As a Senior Engineer at Interhyp, Johannes tackles the practical realities of automated end-to-end testing. He breaks down why test suites often become slow and brittle, sharing workflows based on pure test ownership and close monitoring. Beyond the codebase, he actively advocates for developers to use their influence to shape the entire development process.