10+ years experience in IT, starting from C/C++ and geophysics and now basically JVM languages/JS and financial services.
Basically, he uses Spring and Netflix ecosystem, but checks out everything that is worth trying on GitHub. He is experimenting with reactive approaches.
He wants to understand not only his apps but also everything around them, thus he is working with all the infrastructure (logs, CI/CD, orchestration) and tests. To sum up, DevOps is our everything.