Please correct my letter of application

[D.Alex]

Goog evening,
I will appreciate if you can correct my letter of application:

Dear Sir / Madam

I am writing to apply for the post of Technical Services Supervisor which was advertised in this week's edition of iTech News.
I am 24 years old and a Computer Science graduate at the University of Bucharest.
During my studies I held the position of head tutor for Computing Theory and Professional Computing Practice. My duties included delegating tasks among other tutors, organising class material, and maintaining student marks. I also delivered material as a tutor for several other subjects, including Operating Systems, Assembly, and Software Engineering. This contributed to my leadership skills, clarity of explanation, and confidence in public speaking.
My strong computer skills, knowledge of modern word processing software, and project management tools are some of the things that make me an asset to your company.Furthermore, i was described by the Head of Computer Science Department as enthusiastic, hard-working and patient.
I am available for interview at any time. I can be contacted most easily on the mobile phone number given above. I look forward to meeting you.

Yours faithfully,
D.Alex

Thank you very much !

[Beeesneees]

A polite request might get you further.
_________________
Cheers m' dears!

[D.Alex]

[Beeesneees]

Thank you.
There's not really much correction required.

Opinions differ on this, but personally I adhere to the view that if you are unsure whether you are sending to a man or a woman, then you should just use 'Dear Sir,' as a greeting.

The only sentence that jarred for me was this one: