Dear Mr./Mrs.,
I am proficient in written and spoken English, proven by tests such as TOEFL, or work experience.
I believe your position would be a great fit for me because I have experience in Sales and Customer Support which allow me to maintain a professional manner when discussing with clients or business partners.
Furthermore, I am tech savvy, hard-working and attentive to details, I meet all of the requirements, and, I would be grateful if you can let me use my skills for your position.
Please don't hesitate to contact me if you have any further questions.
Kind regards,
Lucian