Grüße Roman!  Re. "About Me"

Most ist Mostly.  (Unsere Adjektive und Adverbien sind nicht wie einander.)

"and writing documents in an inter-office correspondence" (wortreich/überflüssig)

and inter-office correspondence, (schon gut)

"I'd like to talk and write to people out of our company."

I'd like to talk and write with people outside our company. ("to" ist einfache Fahrt.)

First notebook entry: Introducing myself

Hello,

My name is Roman, I'm 33 years old and I live in Salzburg - Austria (not Australia... We have no kangaroos :-)) I'm a technician in a worldwide company, so most of our company conversations are in English.

To better understand and write documents for interoffice correspondence, I would like to speak to and write to people out of our company.

Feel free to contact me for conversations.

Greetings. 

Roman

Hey Roman... pretty good note! A few corrections to help out. I am in Australia and we definitely have kangaroos here! ;-)

First notebook entry: Introducing myself

Hello,

My name is Roman, I am 33 years old and I live in Salzburg - Austria (not Australia... We have no kangaroos :-)) I am a technician in a worldwide company.
So our conversations are most in English.
For better understanding and writing documents in an inter-office correspondence I'd  like to talk and write to people out of our company.

Feel free to contact my for conversations.

Greetings

Roman