Hello Mr Employer.
I would like to be considered for this opportunity. You would like to contact me first so that I can send my resume and you better know who your candidates are.
I can advance you that I am a C/C++ & Unix specialist with excellent knowledge of Java, architectural design and real time processing. That, IMO, makes me the good match you are looking for.
After you contact me I will provide you with my resume and a formal proposal.
Best regards,
Walter Waldo.