Dear Client,
Sequel to the job description, I would like to let you know that I am competent enough to serve you right. I have considerable level of experience in this field as a proofreader. Though I'm new on Freelancer, I proofread academic and non-academic related paperwork and ensure grammatical and spelling errors, or any incompatibilities are corrected. In addition to that, I am proficient in English. I am also open to negotiation if necessary while you could as well go through my profile.
I look forward to meeting you to discuss this job in detail.
Thank you for your consideration.