Dear Sir.
As an experienced C/C++ expert, it is very interesting to me.
I have been working on c/c++ projects such yours for over 7+ years.
Also, since having programming contestant experience, I have powerful C/C++ and algorithm skills.
I think I could be the right person for your project, because of my past experience and skills.
I would be very appreciated if I have a chance to show you how could I help you to meet your goals.
Thank you.