In my opinion you shouldn't go at all
Here is why
1. How is your Russian? As you might guess Russians unlike, for example, Western Europeans don't know spoken English well enough to be able to even guide you with basic directions. If you are not fluent in Russian then it will be hard for you not even find a job but to basically travel from point A to point B on your own.
2. How do you plan to find those individuals you want to teach? What's your business plan on this? If I would be a Russian that would want to learn English I would search for a special school, reputable school and I would go there. As you may guess people that would want to learn English don't know English, so I'm not sure how you would communicate even if you would have calls from potential clients.
3. I doubt very much that you could find a job in any school, because I suspect they would require you to be an actual teacher with actual Russian diploma.
4. Teacher is not a top-paid job in Russia in general and it could be really hard to live on teacher's earnings for a person that would want to start a new life in another country. And Moscow is a very expensive city.