E-mail p/ emprego

Gente, vocês poderiam dar uma olhada nesse e-mail p/ entrevista de emprego?

Dear Sirs

My name is Edilson, I am Brazilian and I am writing to inquire as to whether you have any job openings at the moment. I have gained fifteen years of experience in the Pharmaceutical Industries, being three years working with Biotechnology medicals products at Biomarin Pharmaceutical Inc.

If you have any opportunity for me so I can give you more details of my work please feel free to contact me, either by e-mail, or by phone.

I look forward to speaking to you soon.

Yours Sincerely,
Edilson

Não sei muito bem o melhor jeito de escrever qdo se trata de entrevista de emprego... tambem queria adicionar que o ingles é intermediario. Como poderia adicionar isso no texto?

Obrigada!