I attended so many blockchain project. Used Skills: Strong software development background Experience working with large codebases Experience working with open-source projects Proficiency in one of the following languages: C++, Java, JavaScript Strong knowledge of common algorithms and data structures Web3js, Soilidity Familiarity with basic cryptography Familiarity with P2P networks Strong knowledge of bitcoin-like blockchains Strong knowledge of concurrency and writing efficient and safe multithreaded code Strong knowledge of STL, C++11 Proficiency in the Qt Widgets module