Tell me about the relevant knowledge you need to know when applying for a position such as "IT system development and maintenance", and provide relevant materials (documents, etc.) for such knowledge.

Educational requirements:

Bachelor degree or above, master's degree preferred

Professional requirements:

Computer, mathematics or communications related majors

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Job Responsibilities:

According to job breakdown, you are responsible for one of the following responsibilities:

1. Responsible for the construction and maintenance of the CRM system;

2 , Responsible for the construction and maintenance of the billing system;

3. Responsible for the maintenance of the system infrastructure;

4. Responsible for the system's underlying data model, storage structure, ETL program design, operation monitoring, etc. Work;

Qualification requirements:

General requirements

1. Fresh graduates from the class of 2010, in good health and decent;

2. Full-time undergraduate degree or above in the national higher education sequence;

3. Agree with China Telecom’s corporate culture and Beijing company’s work values;

4. Enterprising spirit and sense of responsibility, willing to Meet challenges and realize the value of life;

5. Have good communication, coordination and teamwork skills;

6. Have innovative thinking and strong learning and practical abilities;

7. Have strong foreign language listening, speaking, reading and writing skills;

8. Candidates who have won honors such as three good students/outstanding student cadres/outstanding graduates, scholarships, etc. will be given priority

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Requirements for this position:

1. Familiar with one or more databases such as Oracle, and familiar with PL/SQL language;

2. Familiar with C language, C language, JAVA language, etc.;

3. Understand the basic knowledge of data warehouse, data mining, etc.