Kostyantin Pivnenko

I recommend for collaboration! A very conscientious client with an interesting task.

Konstantin is a wonderful client. Structured terms of reference. Excellent approach to work. Easy to communicate with. I recommend for collaboration.

Thank you for the cooperation! Everything went well! I recommend!

The client is responsible and very engaged: clearly formulates requirements, promptly provides access, and quickly checks results. The project is an auto-dialing service on Python/FastAPI with Telnyx integration (AMD, webhooks, instant hangup), a dashboard, and a database for recording results, supporting a pool of outgoing numbers and diagnostics/reaper. Communication is constructive, feedback on logs and screenshots is timely. The result is stable production and a clear instruction for scaling. I recommend the client and will gladly collaborate on future tasks.

Clear specifications, easy communication, timely payment. The client was always in touch and responded promptly to all questions. I recommend for collaboration!

Everything went great, I recommend the client.

Everything is great! Clear specifications, guaranteed communication, and quick payment.

Thank you for the task and the quick closure of the project.

All is well, thank you for the order

The collaboration went perfectly! The client is responsible, always in touch, and responds quickly to questions. I recommend!

I was glad to collaborate. I recommend.

Very pleasant collaboration!

Clear, understandable technical task and examples

I recommend!

Everything went well, the client responds quickly. Thank you!

Thank you for the interesting project, let's continue working.

Thank you for the collaboration!
I hope we will work together again, keep in touch.
I recommend for work.

I am extremely satisfied with the collaboration! It is very pleasant to communicate, responds quickly, and provides clear technical tasks.

Thank you for the wonderful collaboration! I recommend everyone to work with you.

All is great. Clear and understandable requirements, quick feedback was provided. No complaints, would work again 🙂

Resolved all the issues with Konstantin, of which there were many. I hope the consultation was useful for understanding the needs of the launching startup. I recommend working with Konstantin - a very loyal client.

The best houses in Paris. Fast, clear and without underwater stones. I recommend it.

A great commander! I recommend

Everyone is pleased with cooperation!

A clear task. The customer responds quickly. Recommend to compassion.

Great experience, Costa described the task in detail, and was always in contact.
I recommend cooperation.

It was a great experience in performing animations.
I couldn't make an animation for one form.
But the order is always on the link and helps to solve all issues
I recommend as a person and as a customer.

The first thing I liked was that Costy structuredly described the technical task for a difficult project. Communication during the collaboration was clear and reliable. We continue the cooperation. Everything is wonderful.

Contact is ideal! Discover the language in the future website!
I liked it all, I definitely recommend it!

Everything went well, thank you for trust.

A good customer, clear TZ. I am pleased to cooperate.

In the beginning there were difficulties with understanding desires, but in the end everything went well. They were always in contact and, if possible, called to discuss some points.

Great customer, I recommend it!

He prepared the necessary documents, answered the clarificing questions. I am happy with the collaboration with Constantine. It is clear and timely! I strongly recommend and will be glad for further cooperation!

Everything went well.
The customer has always been in contact.
clear tz. I recommend

Everything is fine. Fast communication

A hard project! The customer asked the question in a timely and concrete manner. I recommend cooperation!

A great customer, everything went the best as it could be.

A very nice person in communication, quickly answers to the question, I recommend!

The task was clearly placed, working was comfortable. I recommend)

A great customer! clearly tz. timely payment. I recommend !