Operation and Maintenance Engineer is responsible for maintaining and ensuring the high availability of the entire service, as well as continuously optimizing the system architecture to enhance the deployment efficiency and optimize resource utilization to improve the overall ROI.

Responsible for constructing the enterprise business operation environment and on-line business. The company's initial construction, or the company's business is more complex, the need for frequent on-line new business, this time the need for operation and maintenance engineers to frame the operating environment (this piece of the skills required to understand the common infrastructure of lnmp, lamp, lnmpt, etc.). The ability to research and develop operation and maintenance tools, provide operation and maintenance efficiency, customize the standard operation process (this piece of the need to understand the shell or Python script).

Responsible for building, managing monitoring system. Business on-line, there is a need to monitor the system in a timely manner, to ensure that business failures can be informed in a timely manner to deal with the person in charge (which requires knowledge of zabbix, Prometheus and other mainstream monitoring software).

Responsible for building high availability architecture. With the diversification of business, traffic explosion. Whether it is a stand-alone deployment or distributed cluster, it may be difficult to support the scale of the business, this time we need to do high availability in each business node operation and maintenance (this piece of the need to understand keepalived, heabeat, etc.).

Responsible for on-line automated operation and maintenance system. In the previous business on-line, in addition to manual on-line, some companies will use automation system, more convenient and intelligent (this piece of technology will need in addition to the above Python, and gitlab, Jenkins, ansible and other automation software).

Career development:

1, in the primary stage, the excellent operation and maintenance personnel will reflect outstanding initiative and responsibility, the face of unfamiliar business will take the initiative to learn and expand their own understanding of the business and the corresponding knowledge of the scope, in order to be able to sufficiently competent to maintain the business independently.

2, in the gradual development stage, focusing on the summary of the introspection engineers will gradually grow into high-level operation and maintenance personnel, usually they will have a more systematic understanding of the service operation and maintenance. There are also some engineers who gradually become project managers due to their excellent project management planning skills.

3, and then further development, high-level O&M personnel for the product understanding will be very thorough, so in this case, high-level O&M personnel can even become product managers, product development consultants, in the design and development of product features play a vital role.