Dear Sir,
Now, and after one and half years since resigning from (company), I am honored to contact you again in regards of a job opening you may have in your (Dept.) team.
I am delighted to say that I was part of the (Dept.) family in (company) for over 3 years; from July 2004 until August 2007, and it will be my pleasure to serve under your flagship once more. However this time I will be able to return the favor by bringing back with me much of the learned experience I acquired by working as the (current title) of the (current dept.) with my current employer, that I am sure you will find it a very valuable addition to your team.
Finally, attached you will find my CV for your review, hoping to hear from you soon.
Sincerely,
(your name)
Now, and after one and half years since resigning from (company), I am honored to contact you again in regards of a job opening you may have in your (Dept.) team.
I am delighted to say that I was part of the (Dept.) family in (company) for over 3 years; from July 2004 until August 2007, and it will be my pleasure to serve under your flagship once more. However this time I will be able to return the favor by bringing back with me much of the learned experience I acquired by working as the (current title) of the (current dept.) with my current employer, that I am sure you will find it a very valuable addition to your team.
Finally, attached you will find my CV for your review, hoping to hear from you soon.
Sincerely,
(your name)
