Cancellation of work and communication! I am in the process of working, receiving professional recommendations from Oleksandr that we immediately implemented, which significantly improved our application. We could calmly discuss several implementation options and choose the most optimal ones. On our side, there was a whole team, which Oleksandr quickly integrated into, and everyone felt comfortable working with him. The application had a minimal number of bugs - which simplified our acceptance of results (other freelancers had significantly more bugs), it is rare for a programmer to deliver such quality products. Oleksandr's work speed is very high, we couldn't keep up with him in accepting work. He quickly figured out the nuances of working with Redmine. I highly recommend collaborating!