Hello,
Thanks for the job invite. It's pleasure to meet you.
Could you please tell me more about the first draft specification of your project?
I just read your job posting and it sounds like you need an expert in Delphi.
I have worked on similar projects to what you are looking for, and I am confident I can exceed your expectations.
I can complete your project on time and within your budget.
I'd be happy to discuss this further and get started for you as soon as possible.
Best regards,
Sergey.