Hi,
as an Electrical Engineer C is like a second mother language to me. I have work experience, where I had to do some low level stuff as well as some safety critical programming (the latter as part of a team, I was a trainee at the time). I can definitely claim, that I know the C standard pretty well: more experienced colleagues were asking me to look for errors in their code the whole time. Please let me know what your project is about, I'm sure I can help you at it!
Thanks,
Tamás Davidovics