Konstantin is a great teacher and willing to go above and beyond to make sure the job is done.
Jun 23, 2016
Konstantin is awesome at Node, Express, Mongo, React, etc. He's also my mentor for Relay and GraphQL which is so new that it's hard to find experts in. He writes coding blogs on Medium and contributes to GitHub. You couldn't do any better.
Mar 28, 2016
Extremely helpful, got me started with a great template for development on a complicated deployment.
A++, will hire again!
Sep 11, 2015
Konstantin is very professional mentor. He is gave me very helpful advices.
Apr 07, 2015
Oct 02, 2014
Very helpful. Would definitely recommend him.
Sep 28, 2014
He is the best mentor ever, very helpful thanks
Aug 25, 2014
Aug 19, 2014
Thanks man. He is brilliant
Aug 18, 2014
Great explanations of core concepts and structural best practices!
Jul 31, 2014
Konstantin was amazingly sharp, and understood exactly what I was trying to do! He is an excellent mentor!
Jul 16, 2014
Konstantin is listening and trying to solve problems. I will definitely work with him again.