Hello, I'm an experienced native ESL tutor on Skype- I've been teaching English since 2001.
As an intermediate/advanced English speaker, it sounds like you already can communicate well in English but you want to clean up grammar and pronunciation errors and take your English to the next level. It's actually often more difficult for advanced learners to improve, and more difficult to see the improvement when it happens.
Fortunately, I can help with that!
I will send you a complete English placement test that covers listening, speaking, reading, writing and grammar. The test will show us exactly what kind of lessons to focus on.
We'll also talk about your goals, how you are using English daily and what kinds of things you like, so we can put together a plan to make sure your English is improving in an efficient way.
I'm looking forward to talking about how I can help you with your English!
Thanks,
Donald Crane