-Regularly check the maintenance, computer maintenance, network systems administrators ensure the system always at the highest efficiency.-Fix, fix problems arising such as: 1. hardware: correctly identify the bug damaged, repair and replacement 2. software: the software charge, personnel management, web, etc.3. databases: MySQL, SQL server, Potgres.-Proposals to replace and upgrade equipment to meet the needs of the company's work.-Guide the user to use the software, the hardware, the company's equipment.-Updated the data on prices, quantity of goods, the number of personnel, etc. -Information security, data, permissions to retrieve the data.-Reports, process and data backup at the request of the Board of Directors.
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