Utkir has been a valuable member of Pillar/Etherspot team and has contributed a lot towards integration of new features and improving the performance of our system.

His communication and collaboration has been excellent. He has been very responsive and always available to assist and help out on any issues that we faced. Utkir's quality of work for Pillar has been really good.

I would recommend Crypton Outstaffing services to other businesses if they look for outstanding developers. For us it was a great experience working with Utkir and Crypton Studio.

Dmitry has been a great asset who has assisted in the planning, implementation and testing stages of Aqualis smart contracts. He is responsible for the majority of our current smart contracts which are in testing.

Dmitry has been very thorough with communication and collaborated greatly throughout the projects he has undertaken. He was very responsive when needed, though we usually do not bother him much, he asks us more questions when he needs clarification.

He is typically quite fast at understanding new concepts. Dmitry is also very thorough in communication and takes great pride in his work.

We really like this model of fixed contracts and we appreciate Dmitry being available when we need him, it takes the burden off us significantly as we are only a small start up with very limited funds at this stage.

The active development phase of the main part of the project is currently underway. We connect Dmitry to many meetings with our developers, because the smart contract interacts with the backend, front and the game.

But due to the identification of pitfalls and the need to perform additional work that was not taken into account initially (writing scripts, expanding smart contract capabilities, eliminating vulnerabilities, additional integration of third-party bots) we see that we will need Dmitry for at least another 1.5 months.

Dmitry copes very well with his work, takes the initiative in solving new non-trivial tasks. He always gets in touch and we see his desire to make a quality product.

Michael was excellent. He was thoughtful and understood our concepts well. His EVM code was clean and easy to understand and he was extremely supportive. What was most impressive was that he delivered on-time to a high quality.

The project, Lighthouse, was about a smart contract related to reputation credentialing. What we appreciate the most working with Crypton Studio, is the fast, on-time, and flexible approach.

Kirill has taught blockchain development in our courses. He is an excellent solid developer and an experienced teacher, who knows how to present the most complex information in a clear and accessible way for students.

He is responsible, he completed all assignments on time, we knew we could rely on him.

Kirill is a good mentor, very knowledgeable in his field — we are glad to have him as a teacher.

Onure helps us solve solidity and contract related issues. He has good interpersonal skills and is not afraid to ask for explanation or help on the tasks he has been assigned, which are great qualities to have when working with remote teams.

Productivity wise, Onur is fantastic. He spends enough time understanding the tasks and has good logical thinking skills to derive proper secure solutions in required time and has yet to exceed any of the deadlines.