I've been writing software professionally for more than 25 years. I'm a systems programmer with strong interests in network and host management, middleware and security. Professionally, I also spent roughly 10 years writing embedded software for automotive applications.
Prior to my automotive work, I was a UNIX network management software developer and system administrator for many years. I continue to develop UNIX software (primarily in C++), since it's my primary hobby. I've been doing what we now call DevOps since long before that name appeared. I also dabble in embedded work as a hobby, from small 8-bit microcontrollers up to devices like the Raspberry Pi.