"Yuriy is great to work with! Very positive and knowledgeable.
I asked him for help with ReactFire. He was generous spending some time understanding my problem, and then preparing himself offline.
When we began the session, he was completely prepared. We were able to walk through the code for a sample todo app, and then re-work with just React + Firebase (and not ReactFire). That was helpful to understand what ReactFire does, as well as to understand what you need to do if you want to use ES6 (which doesn't support ReactFire).
Finally, he patiently helped me deploy our sample code to my server, and then gave me helpful pointers about other aspects of my project (database rules, etc.)
I would highly recommend with Yuriy!"