I've been programming for over 15 years. C is my favorite language and the one I'm most experienced in by far, followed by C++, though Python is my second favorite. I'm comfortable with assembly, primarily MIPS, x86_64 and RISC-V. I have a little experience with Scheme/Racket. I'm also fairly well versed in modern OpenGL (3.3+, I have no experience with deprecated fixed function OpenGL). I am an experienced Linux user and developer. All my personal projects are developed and run on Linux.
I've also been tutoring on Wyzant, both in person and online, since mid 2016:
https://www.wyzant.com/Tutors/RobertW