Job responsibilities of a blockchain operation and maintenance engineer: 1. Collaborate with the system development team to analyze and handle daily network failures, ensure the normal operation of the system infrastructure, and carry out operation, updates, and guarantees for large-scale clusters; 2. Familiar with Python, shell, SQL and other scripting programming, proficient in writing scripts, familiar with the use of mainstream databases, and proficient in SQL statements; 3. Responsible for the operation and maintenance services of cloud security products; 4. Proactively identify problems and hidden dangers in the production environment, and improve the company's operation and maintenance delivery capabilities through open source operation and maintenance tools or self-developed operation and maintenance tools. 5. Able to use host monitoring, log analysis APM、 Common system performance analysis commands and other tools are used to locate complex problems, respond quickly, and handle feedback issues. 6. Quickly handle various system failures encountered during actual operation and prevent potential system failures; 7. Able to independently troubleshoot various issues during the execution of shell or Python scripts; 8. Familiar with mainstream computing and storage resource virtualization technologies, with practical experience in building and maintaining them;