Dear Sir,
I will be honest, it is my first bet in the freelancer world, but I have read the description of the job and found the perfect opportunity and would like to enjoy it, I assure you dedication.
I am native Portuguese as required and I speak & write fluently English, have a computer technology course so I am very familiar with the terms.
I hope you find me fit for the job, I long to hear from you.
Best regards,
Anne