Really good- just a few grammatical errors!

Letter of application

Dear Mr. Islington,

I'm writing in reply to your advertisement published in Friday's Evening News.

I'm really interested in the position you're advertising and I have experience in either both school training and in journalism.

I would like to ask some questions about the position. Firstly, I would like to know what level of German language is required in order to start the trial period. My knowledge of German is not good, but I can start language lessons very soon.
Secondly, I would like to know if it's possible to work from home and to send the articles to the supervisor.

I can be contacted at the following e-mail: [email protected] and my phone number is 0044556677.

Best regards,

Name Surname