Greetings,
I have over 10 years of professional experience as a software engineer and consultant, and I've authored a couple of books on C++ and Data Structures.
Given that the scope of your work is undefined, I am assuming this can be completed within a day, considering my current commitments. I hope my credentials will be able to satisfy you regarding my relevant skills.
Hoping to have the pleasure of working with you on this project, and establishing a basis for an ongoing professional relationship.
Regards,
Gaurav