We carry out a full cycle of project development on the Ethereum, Hyperledger Fabric, R3 Corda, TON blockchain platforms, and implement smart contracts. We are highly experienced in creating both research prototypes and production systems. We have developed the distributed production system prototype on Hyperledger Fabric, created Q-unity project together with QIWI Blockchain Technologies, modified Ethereum virtual machine, solved data privacy problem in Ethereum-based system using the zero-knowledge proof algorithm zk-SNARK e.t.c. You can find more information about us in the profile. In addition to software development our team conduct research in the sphere of the blockchain and cryptography, also we participate in the international conferences and issue scientific articles.