Help me with Marketing

"Rate and duration will be fixed on discussion" Dear Hiring Manager, I have gone through your job posting and become very much interested to work with you. I am an expert in these fields. I have already completed several projects like this. For evidence you can see my profile. I have excellent command over English. I am a hard worker, productive and worthy of your attention I hope, I would be the right candidate for this post. Awaiting an affirmative response from you. -- Kinds Regards, Mehedi Hasan.