I have passed a Python course in college during one semester. I have had personal experience developing applications in C as a hobby.
Unfortunately I have not done anything serious for embedded systems before, but if the environment is familiar to me (for example Linux), then I'm willing to write parts of standard library or the project itself without relying on third-party libraries. Also I like optimizing code so that it runs as fast as possible, that's why C is one of my favorite programming languages.