IT şirket için , ofiste çalişrım. I work in an office for an IT company. Thank you

Maybe ´ofiste çalışırım´ should come first.. or you could say ´I work in the office of an IT company´ which I think would be:

IT şirketinin ofisite çalışırım

thanks LIR

Bir IT şirketinin ofisinde çalışıyorum.

Notes:

1) "Bir" is needed there as the company is indefinite. Not using it would be kind asimilar to not using in English: I work in IT company = kinda weird.

2) "IT" will probably be understood but you could also use "bilişim".

3) I see this little mistake when translating present simple sentences such as "I work", "I live" etc. These have a connotation of "currently" to them and should be translated as continuos tense:

I live in İstanbul -> İstanbul´da yaşarım (will be understood but weird)

"İstanbul´da yaşıyorum" is correct here.

1)  Silly of  me I should know that

3) I wanted to change it to çalışıyorum because in English we would probably say ´I am working in.......´ but whenever I use the present continuous it seems I should have used the geniş zaman so I thought ´maybe not´!  I find the two tenses confusing because somehow what they tell you in the books about the when and where to use them doesn´t seem to agree with ´real life´ usage. 

 Or IT (English) = BT (turkish)

Here BT = Bilgi Teknolojisi.

Just possibly confusing for the English, for whom BT = British Telecom, our version of Türk Telekom!!!!