The 1+x blockchain takes about two weeks to produce results. The "blockchain intelligent contract development" 1+X vocational skill level certificate mainly cultivates vocational skills as follows: blockchain platform operation and maintenance, blockchain intelligent contract application research and development, blockchain application solution, blockchain security audit, and is engaged in the construction and operation of blockchain intelligent contract platform, intelligent contract application management, intelligent contract application development, optimization and testing, blockchain intelligent contract security and audit, and blockchain. The main positions are: intelligent contract development engineer, blockchain application development engineer, alliance chain development engineer, blockchain application architect, blockchain security engineer, intelligent contract security auditor, blockchain test engineer, blockchain application operator, blockchain product manager, etc.