My job is very good.

I'm live in Brazil, here the sun is hot, the beaches is wonderfull.
But, I need to work, a make ceramic special,it's ceramic is very hard, used in industrial and machines.

Dear Melqui,

You have 2 tenses mixed up!  I'm live.... is incorrect.

I'M LIVING    OR    I LIVE

The present continuous....

I'm living in France this year because I'm working there.

Susan is living in a caravan so she can save money.

The present continuous tense suggests it's maybe TEMPORARY.

If you feel it is more PERMANENT then you'll use the present tense....

I live in Rio.

Jack lives in a caravan.

It suggests Jack lives in a caravan all the time.

The beaches is wonderfull!  Melqui! Agreement! Does the word 'beaches'(plural) agree with the verb 'is'  !!!!!  ????

Spelling! How do you spell 'wonder......'   ?

But I need to work. Correct. (So do I!)

...a make ceramic special, it's ceramic is very hard, used in industrial and machines.  (the main problem here is the adjectives need to come before the noun)

...I make special ceramic, it's a very hard ceramic used in machines in industry.

...I make a special ceramic which is very hard and used in indusrty.

You might try correcting this (send your correction to me on skype (skypename:moirawendy) and I'll check it for you):

He's live in Sao Paulo for a few months to see if he like it. It a beautifull city but he worries it will be to expensive. Usually he is living in the countryside; things is much cheaper there.

There are quite a few mistakes there for you to correct!

It sounds lovely where you live ... all those nice hot beaches! England is a very damp and grey country. Your main problem is you are making basic mistakes in structure. You need to study your grammar, and keep practising. iTalki is good because usually there is someone who can help.