I am a former developer from germany who has worked on a broad range of technologies. Mainly i was assigned to tasks like designing, writing and implementing/integrating applications for mixed systems, debugging and troubleshooting them, also including lots of teaching on how to do all those things. I was not tied to any special systems at all, as long it could be programmed somehow, no matter in kernel or userland
Currently i am not developing or teaching anymore. But i still try to help and contribute code and solutions, help wherever i can. I am also strongly interessted in pedagogy, especially in media pedagogy. There are a few final words i want to say here: Share your knowledge of programming, of life and all your experiences to anybody out there, to build a better and safer world. We only have one. Please try to keep it safe for all of us.