About
Guido Steinacker
Executive Software Architect at OTTO
I’m a Computer Scientist (Diplom-Informatiker) and have been working as Executive Software Architect at OTTO since 2009. Before that, I spent several years at mid-sized software companies.
At OTTO, I helped lay the groundwork for the new shop architecture of otto.de — replacing the original monolith with what eventually grew into roughly 2000 independent microservices, managed by about 60 teams, with a few 1000 live-deployments per week, most of them fully automated.
My core interests revolve around scalability, microservice architectures, self-contained systems, and how to organize teams so they can actually ship software at scale. My newest interest is agentic AI in the product-development life cycle.
Writing & talks
I’ve written about architecture and microservices on the OTTO Tech Blog and for informatik aktuell, and published a paper on Microservice Architectures for Scalability, Agility and Reliability in E-Commerce (IEEE ICSAW 2017, with Prof. Dr. Wilhelm Hasselbring).
I’ve spoken at conferences including OOP, IT-Tage, and code.talks on topics like continuous deployment of microservices and self-contained systems, and have given a few guest lectures on scalable architectures at Kiel University with Prof. Dr. Hasselbring.
Beyond code
When I’m not at my desk, you’ll find me on the water. Sailing is how I recharge — wind, waves, and hands-on navigation make for a good counterweight to the abstraction of my day job. If you’re curious, you can find me and my boat at auguste-von-orust.de (german).