proofreading please

[Alexander]

I have great experience in trading field of commodities of your company by having been performed this job successfully in a similar branch and I present my resume expecting further interview.
I was a sales leader and I have set a bond of trust and friendship that let me to reopen contacts and open up new markets in several places, both downtown or upstate.
In addition to my great experience and my contacts, I am pleased to work in this field and therefore, I seek the position of sales general manager or sales representant.
I appreciate your attention and I look forward to hearing from you.



Background in a wide range of trading field.(is that correct???)

[Pete]

I have great experience in trading field of commodities of your company by having been performed this job successfully in a similar branch and I present my resume expecting further interview.
I was a sales leader and I have set a bond of trust and friendship that let me to reopen contacts and open up new markets in several places, both downtown or upstate.
In addition to my great experience and my contacts, I am pleased to work in this field and therefore, I seek the position of sales general manager or sales representant.
I appreciate your attention and I look forward to hearing from you.



Background in a wide range of trading field.(is that correct???)

I have <strike>great</strike> extensive experience in <strike>trading field of</strike> the field of trading the commodities <strike>of</strike> made/sold by your company <strike>by having been</strike> since I have performed this job successfully in a similar <strike>branch</strike> company, and I present my resume <strike>expecting</strike> hoping for a further interview.
I was a sales leader and I have set a bond of trust and friendship that let me to reopen contacts and open up new markets in several places, both downtown <strike>or</strike> and upstate.
In addition to my <strike>great</strike> good experience and my contacts, I <strike>am pleased</strike> very much like to work in this field, and therefore, I seek the position of sales general manager or sales <strike>representant</strike> representative.
I appreciate your attention and I look forward to hearing from you.

> Background in a wide range of trading field.(is that correct???)
-- I'd say something like,
- ... background in the field of trading with a wide range of products.
or - background in trading a wide range of products.